With Circuit For Evaluating A Fluent Material Patents (Class 250/564)
  • Patent number: 10393659
    Abstract: The present disclosure provides an instrument and methods for detecting an analyte, comprising a light source capable of generating excitation light for exciting a plurality of luminescence labels, an excitation beam path extending between said light source and said analyte, a detector capable of detecting light emitted from said luminescence label, an emission beam path extending between said analyte and said detector, a filter carrier carrying two or more pairs of filter portions, each pair being related to one luminescence label and comprising a first filter portion for transmitting excitation light and a second filter portion for transmitting emitted light, wherein said first filter portion of one pair is said second filter portion of another pair, and wherein said filter portions are arranged in a manner that a respective one of said pairs can be brought in an operative condition in which said first filter portion is in said excitation beam path and said second filter portion is in said emission beam pat
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: August 27, 2019
    Assignee: Roche Molecular Systems, Inc.
    Inventor: Alan Furlan
  • Patent number: 10317264
    Abstract: Systems and methods to measure fluid delivery times in a piping system and more particularly a dry pipe fire protection system. A device is provided that includes at least a solenoid valve for coupling to a network of pipes of a dry pipe sprinkler system and a liquid detector for coupling to the network of pipes to detect a flow of water in the network. A timer is coupled to the solenoid valve. Upon operation of the solenoid valve, the timer simultaneously initiates a start time of a fluid detection test. The timer is preferably coupled to the liquid detector such that upon the detector detecting water, the timer defines a stop time of the fluid detection test.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: June 11, 2019
    Assignee: Tyco Fire Products LP
    Inventors: Robert S. Nesselle, Chad A. Goyette
  • Patent number: 10295519
    Abstract: A sensing system according to the embodiment of the present invention includes an optical actuator configured to apply an optical stimulus into a detection target substance, a photo detector configured to output an electrical signal having a snapback form in response to an optical response generated according to a concentration of the detection target substance to which the optical stimulus is applied, an amplifier configured to amplify the electrical signal output from the photo detector and to provide the amplified electrical signal as positive feedback to the optical actuator, and a detection unit configured to detect the detection target substance in response to the electrical signal.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: May 21, 2019
    Assignees: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, SEOUL VIOSYS CO., LTD.
    Inventors: Young June Park, Seong Wook Choi, Sang Woo Lee
  • Patent number: 10191498
    Abstract: A chemical controller for an aquatic application comprising at least one output relay. The chemical controller further includes a current detection circuit configured to detect current on an output of the at least one output relay and a current fault detection device configured to output a current fault signal indicative of the occurrence of a current fault condition. The chemical controller further comprises at least one relay latch configured to receive the relay enable signal and the current fault signal and to decouple the relay enable signal from a corresponding relay latch output when the current fault signal indicates the occurrence of a current fault condition. A relay drive circuit is configured to receive a signal from the corresponding relay latch output to and to responsively activate and deactivate the at least one output relay.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: January 29, 2019
    Assignee: Pentair Water Pool and Spa, Inc.
    Inventors: Keith Lewis, Greg Lyons
  • Patent number: 10187948
    Abstract: There is provided a light control circuit including a detected voltage generating circuit, a reference voltage generating circuit, an error amplifier, an NMOS driver and a light source. The detected voltage generating circuit outputs a detected voltage to a first input terminal of the error amplifier. The reference voltage generating circuit outputs a reference voltage to a second input terminal of the error amplifier. The NMOS driver changes a drive current of the light source according to an output of the error amplifier.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: January 22, 2019
    Assignee: PIXART IMAGING INC.
    Inventors: Kuan-Choong Shim, Gim-Eng Chew
  • Patent number: 10169847
    Abstract: An air-to-air background-oriented Schlieren system and method for measuring and rendering visible density changes in air that cause a refractive index change by an airborne vehicle. A sensor aircraft equipped with a high-speed visible spectrum camera travels at low airspeed on a predetermined route and on a level altitude over a background having consistent contrast and sunlight reflectivity. The target aircraft, traveling on the same predetermined route but at an altitude between the sensor aircraft and the ground (background) passes beneath the sensor aircraft. The camera on the sensor aircraft captures a series of images including a reference image immediately before the target aircraft enters the image frame followed by several data images as the target aircraft passes through the image frame. The data images are processed to calculate density gradients around the target aircraft. These density gradients include shockwaves, vortices, engine exhaust, and wakes.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: January 1, 2019
    Assignee: The United States of America as Represented by the Administrator of NASA
    Inventors: James Thomas Heineck, Daniel William Banks, Edward Treanor Schairer, Paul Stewart Bean, Edward Andrew Haering, Jr., Brett Arnold Pauer, Brittany Joan Martin, David Nils Larson
  • Patent number: 10151693
    Abstract: A photoelectric smoke sensor includes a housing having a circuit accommodation chamber, an inflow chamber provided in the housing, a light emitting portion provided in the inflow chamber, and a light receiving portion provided in the inflow chamber. The light emitting portion includes a first light and a first support portion surrounding the first light guide. The light receiving portion includes a second light guide and guiding the light to the light receiving element and a second support portion surrounding the second light guide. The first support portion and the second support portion are configured to prevent escape of a flame from the circuit accommodation chamber to the inflow chamber.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 11, 2018
    Assignee: FENWAL CONTROLS OF JAPAN, LTD.
    Inventors: Masao Iguchi, Tadayuki Shibuya, Kanji Numao, Shintaro Masumoto
  • Patent number: 10019891
    Abstract: A method for distinguishing between an alarm condition and a nuisance condition in a smoke detector. The smoke detector comprises an illuminator and a light sensor. The method includes measuring a voltage signal in response to an electromagnetic signal emitted by the illuminator, and comparing the voltage signal to an alarm threshold. A rate of change of the voltage signal is determined in response to the comparison of the voltage signal and the alarm threshold. A first frequency component of a first portion of the voltage signal and a second frequency component of a second portion of the voltage signal is determined. The first frequency component and the second frequency component are compared to distinguish between the alarm condition and the nuisance condition. An indication of the alarm condition and the nuisance condition is respectively generated upon an identification of the alarm condition and the nuisance condition.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: July 10, 2018
    Assignee: Google LLC
    Inventors: Kunal Kishore Bajaj, Andrii Korchak
  • Patent number: 9927418
    Abstract: A device for analysis and monitoring of toxicity in waters is described. The device is specifically devised for determining toxicity in waters in several samples at the same time and in quick time with a high degree of accuracy and precision. The device has application in the field of controlling and monitoring the water resources and in the field of the ecotoxicological analyses.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: March 27, 2018
    Inventor: Pompeo Moscetta
  • Patent number: 9857286
    Abstract: A particle fractionating apparatus is described that can sort droplets containing particles in a first mode of operation, and distribute droplets that do not contain particles to a plurality of locations in a second mode of operation. The modes of operation are selectable by a user. Droplets may be emitted from a microchip of the particle fractionating apparatus.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: January 2, 2018
    Assignee: Sony Corporation
    Inventors: Yosuke Muraki, Atsuo Fujimaki, Fumitaka Otsuka, Yasunobu Kato
  • Patent number: 9842478
    Abstract: A smoke and/or fire detector for the detection and distance measurement of smoke (36) in a monitored zone (2), having a light transmitter (4) for transmitting a transmitted light signal (8), having a light receiver (6) for generating a received light signal (10) from the transmitted light signal (8) remitted or reflected in the monitored zone (2), and having an evaluation unit (12) for evaluating the time of flight of the received light signal (10), wherein the evaluation unit (12) has a transient recorder (14) and wherein the transient recorder (4) is configured to record multiple received light signals (10) of a single transmitted light signal (8) successively following in time in a time period and the evaluation unit (12) is configured to evaluate the received slight signals (10).
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: December 12, 2017
    Assignee: SICK AG
    Inventors: Andreas Bonisch, Jurgen Convent
  • Patent number: 9802767
    Abstract: A microfabricated sheath flow structure for producing a sheath flow includes a primary sheath flow channel for conveying a sheath fluid, a sample inlet for injecting a sample into the sheath fluid in the primary sheath flow channel, a primary focusing region for focusing the sample within the sheath fluid and a secondary focusing region for providing additional focusing of the sample within the sheath fluid. The secondary focusing region may be formed by a flow channel intersecting the primary sheath flow channel to inject additional sheath fluid into the primary sheath flow channel from a selected direction. A sheath flow system may comprise a plurality of sheath flow structures operating in parallel on a microfluidic chip.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: October 31, 2017
    Assignee: CYTONOME/ST, LLC
    Inventors: John R. Gilbert, Manish Deshpande, Bernard Bunner
  • Patent number: 9733067
    Abstract: A detection apparatus includes four sets of transmitter and receiver wherein the transmitters are on a first sliding member of a frame and the receivers are on a second sliding member of the frame; and drives for moving the first and second sliding members back and forth. During the movements of the first and second sliding members, each transmitter emits laser beam toward the receiver of the same set by passing through a space above a photoresist-coated optical glass by 100 ?m, no signal is generated at the receiver if the laser beam is not blocked, and a signal is generated at the receiver if the laser beam is blocked by at least one of a plurality of particles on the photoresist-coated optical glass.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: August 15, 2017
    Assignee: Taiwan Nano-Technology Application Corp
    Inventors: Hong-I Tsai, Chang-Chien Mu
  • Patent number: 9541475
    Abstract: Apparatus and methods for size-specific detection of particles entrained in fluids are provided. A particle size selector separates particles entrained in a sample fluid stream using a curved channel. Shroud fluid streams are interposed between the sample fluid stream and walls of the channel. Centrifugal forces arising from fluid flow through the curved channel separate differently-sized particles into different transverse sections of the channel. A detector downstream from the particle size selector specifically detects particles in one or more transverse sections of the channel.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: January 10, 2017
    Assignee: The University of British Columbia
    Inventors: Winnie Chu-Hui Chu, Allison Schaap, Boris Stoeber
  • Patent number: 9339218
    Abstract: A concentration measuring device having a spot-application region, and a configuration capable of measuring the concentration of an object component in the sample liquid dropped on the spot-application region, the concentration measuring device including: a light irradiation device, which is provided on a side below the spot-application region, for emitting an irradiation light having a wavelength absorbable by a coloring matter in the dropped sample liquid. The irradiation light passes through the spot-application region, thereby the sample liquid dropped on the spot-application region is irradiated with the irradiation light from the side below the spot-application region. As a result, a non-covered region in the spot-application region can be easily found by visual observation. The spot-application region is composed of, for example, a through hole formed on the supporting film and a separation membrane that blocks the through hole.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: May 17, 2016
    Assignee: HORIBA, Ltd.
    Inventors: Tomoyuki Murata, Takao Minai, Takaaki Yada
  • Patent number: 9121861
    Abstract: A probe including a multiple lens array is disclosed to measure velocity distribution of a moving surface along many lines of sight. Laser light, directed to the moving surface is reflected back from the surface and is Doppler shifted, collected into the array, and then directed to detection equipment through optic fibers. The received light is mixed with reference laser light and using photonic Doppler velocimetry, a continuous time record of the surface movement is obtained. An array of single-mode optical fibers provides an optic signal to the multiple lens array. Numerous fibers in a fiber array project numerous rays to establish many measurement points at numerous different locations. One or more lens groups may be replaced with imaging lenses so a stereo image of the moving surface can be recorded. Imaging a portion of the surface during initial travel can determine whether the surface is breaking up.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: September 1, 2015
    Assignee: National Security Technologies, LLC
    Inventors: Robert M. Malone, Morris I. Kaufman
  • Patent number: 9018608
    Abstract: An optical liquid sensor utilizing a light source, fiber optic cables, a light detector and an irregular transparent surface is provided to detect the presence of liquid in mist and continuous form. The sensor may be integrated into a probe designed for insertion into a pressurized fluid process.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: April 28, 2015
    Assignee: A+ Manufacturing, LLC
    Inventor: Donald P Mayeaux
  • Patent number: 9013703
    Abstract: A gas analyzing apparatus includes a probe for measuring a concentration of sample gas flowing in a pipe by an optical measurement system. Influence of a thermal lens effect phenomenon is suppressed so that measurement accuracy is improved. The apparatus includes a probe tube disposed to cross a flow path of the sample gas in the pipe to introduce the sample gas flowing in the pipe to a predetermined hollow measurement region. A light emission portion and a light receiving portion for project measurement light to the measurement region in the probe tube and receive the measurement light after passing through the sample gas in the measurement region. A purge gas feed tube disposed in the probe tube supplies purge gas to a region between the optical system members and the measurement region, with a gap to the inner wall surface of the probe tube.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 21, 2015
    Assignee: Horiba, Ltd.
    Inventors: Toshikazu Ohnishi, Toshiyuki Tsujimoto
  • Publication number: 20150048264
    Abstract: A fluid analysis method is provided. A gradient distribution of a first scalar property of a calibration fluid in a space is obtained. A calibration schlieren image of the calibration fluid is acquired and processed to obtain an intensity distribution of the calibration schlieren image. The gradient distribution of the first scalar property of the calibration fluid in the space is mapped to the intensity distribution of the calibration schlieren image, so as to obtain a corresponding relation between the gradients of the first scalar property and the intensities. A test schlieren image of a test fluid is acquired and processed to obtain intensity distribution of the test schlieren image. The intensity distribution of the test schlieren image is converted to the gradient distribution of the first scalar property of the test fluid according to the corresponding relation. Moreover, a fluid analysis system is also provided.
    Type: Application
    Filed: December 20, 2013
    Publication date: February 19, 2015
    Applicant: National Taiwan University
    Inventors: Chen-Li Sun, Tzu-Hsun Hsiao, Chien-Yuan Huang
  • Publication number: 20140374630
    Abstract: The present disclosure is related to a microfluidic flow analyzer for pathological detection. The microfluidic flow analyzer comprises plurality of buffer channels, sample channel, central flow channel, plurality of exciting optical channels and plurality of receiving optical channels. The plurality of exciting optical channels and the plurality of receiving optical channels are placed at predetermined angle to the central flow channel. The plurality of exciting optical channels excite cell in the sample solution flowing through the central flow channel. The cell being excited produces one or more optical signals. The one or more optical signals are received by the plurality of receiving optical channels. The microfluidic flow analyzer comprises plurality of detectors placed on each of the plurality of receiving optical channels for detecting one of the one or more optical signals. The detected optical signal is sent to a computing unit for pathological detection.
    Type: Application
    Filed: February 1, 2013
    Publication date: December 25, 2014
    Inventors: Taslimarif Saiyed, Sudip Mondal, Anil Prabhakar, H. Krishnamurthy
  • Publication number: 20140353531
    Abstract: A system and method for the retrieval of mass density distributions or “profiles” for at least a portion of the Earth's atmosphere for one or more molecular constituent within the atmosphere that absorbs spectral energy. The spectral energy may be anywhere within wavelengths of radiation from UV through visible and into the infrared. The system incorporates a single ended instrument to permit continuous monitoring of the vertical profiles of all constituents of interest.
    Type: Application
    Filed: March 7, 2014
    Publication date: December 4, 2014
    Inventor: Stephen T. Hanley
  • Publication number: 20140284504
    Abstract: Apparatus and methods for monitoring platelet quality are disclosed. A bag of platelet concentrate is oriented in a desired manner on a transparent surface that is illuminated from one side with a light source. A clamp applies pressure to a desired portion of the bag to temporarily manipulate a predetermined portion of the bag and therefore the fluid in the bag in a known and repeatable manner. A flow inducing member applies pressure to the bag to thereby cause a turbulent flow of the fluid from the bag through a flow path. A detector records optical characteristics of light diffracted by the flowing particles, which is analyzed by software to derive a score correlating to the quality of the platelets. Platelet swirl is scored as a measure of platelet quality where more resting, discoid platelets result in a higher score.
    Type: Application
    Filed: October 22, 2012
    Publication date: September 25, 2014
    Inventors: Elisabeth Maurer, Gyasi Bourne
  • Publication number: 20140252250
    Abstract: A method for characterizing the dielectric response of a fluid includes receiving the fluid into a portion of a flow line that is disposed proximate to a photonic bandgap (PBG) resonant cavity so that a dielectric permittivity of the fluid affects a frequency response of the resonant cavity. The method further includes providing electromagnetic waves to the resonant cavity and measuring a frequency response of the resonant cavity in the presence of the fluid in the flow line. The method further includes determining a property of a resonant mode of the resonant cavity using the frequency response and determining a property of the fluid using the property of the resonant mode.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Tancredi BOTTO, Elizabeth SMYTHE
  • Publication number: 20140247451
    Abstract: A system and method for analyzing a particle in a sample stream of a flow cytometer or the like. The system has a light source, such as a laser pointer module, for generating a low powered light beam and a fluidics apparatus which is configured to transport particles in the sample stream at substantially low velocity through the light beam for interrogation. Detectors, such as photomultiplier tubes, are configured to detect optical signals generated in response to the light beam impinging the particles. Signal conditioning circuitry is connected to each of the detectors to condition each detector output into electronic signals for processing and is designed to have a limited frequency response to filter high frequency noise from the detector output signals.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 4, 2014
    Applicant: Los Alamos National Security, LLC
    Inventors: Steven W. Graves, Robert C. Habbersett
  • Publication number: 20140231680
    Abstract: A method for detecting clots in a liquid is presented. The liquid is in a sample container. Light is irradiated having a first wavelength to the sample container by a first light source at a changeable vertical irradiating position (P—0 to P_n) such that the light irradiated by the first light source passes through the sample container along a first measurement path. An intensity of light having the first wavelength passing along the first measurement path and exiting the sample container is measured. Clots are detected in response to the measured intensity.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 21, 2014
    Applicant: ROCHE DIAGNOSTICS OPERATIONS, INC.
    Inventor: Darko Klinec
  • Publication number: 20140136127
    Abstract: A method and apparatus for determining the location of a phase boundary such as a fill level, in a vessel. The method includes: providing at least one source of radiation capable of emitting radiation through a portion of the interior of the vessel; providing a plurality of radiation detectors, each detector being capable of detecting, within a part of the measurement range, radiation emitted by the source; and providing a data processing unit for calculation of the position of the phase boundary from the amount of radiation detected by the detectors, wherein the data processing unit calculates the position of the phase boundary from the amount of radiation detected by the detectors by: (i) in a first step, determining within which detector stage the phase boundary is located; and then (ii) in a second step, determining the position of the phase boundary within the detector stage determined in (i).
    Type: Application
    Filed: June 29, 2012
    Publication date: May 15, 2014
    Inventors: Edgar Ramon Sanchez Galicia, Kenneth James, Stephen John Roe
  • Publication number: 20140134608
    Abstract: There is provided a single particle detection technique based on a scanning molecule counting method, enabling individual detection of a single particle using light measurement with a confocal or multiphoton microscope, and quantitative observation of conditions or characteristics of the particle. The inventive technique of detecting a single particle in a sample solution detects light containing substantially constant background light from a light detection region with moving the position of the light detection region of the microscope in a sample solution to generate time series light intensity data; and detects individually a light intensity reduction occurred when a single particle which does not emit light (or a particle whose emitting light intensity in a detected wavelength band is lower than the background light) enters in the light detection region in the time series light intensity data as a signal indicating the existence of each single particle.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 15, 2014
    Applicant: OLYMPUS CORPORATION
    Inventors: Takuya Hanashi, Tetsuya Tanabe
  • Publication number: 20140110105
    Abstract: Disclosed are systems and methods for monitoring a multiphase fluid and determining a characteristic of the multiphase fluid. One system includes a flow path containing a fluid, at least one integrated computational element configured to optically interact with the fluid and thereby generate optically interacted light, at least one detector arranged to receive the optically interacted light from the at least one integrated computational element and generate an output signal corresponding to at least one characteristic of a phase of the fluid, and a signal processor communicably coupled to the at least one detector and configured to determine the at least one characteristic of the phase of the fluid.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Christopher Michael Jones, Robert P. Freese, Michael T. Pelletier, Robert Atkinson
  • Patent number: 8701746
    Abstract: Systems and methods for determining liquid depth information in a condensate pan of a climate control unit are provided. The systems and methods radiate a light beam into a liquid contained in a condensate pan associated with a climate control unit. The light beam is detected at a point of the condensate pan that is below a surface of the liquid. Information related to the depth of the liquid is determined based at least in part on the detected light beam. The systems and methods disclosed herein can determine if liquid depth in a condensate pan is greater than a threshold depth and can control evacuation of the liquid from the condensate pan.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: April 22, 2014
    Assignee: Schneider Electric IT Corporation
    Inventor: Daniel J. Rohr
  • Publication number: 20140061513
    Abstract: Disclosed is a portable handheld characteristic analyzer used to analyze chemical compositions in or near real-time. The analyzer may include a portable housing, at least one optical computing device arranged within the portable housing for monitoring a sample, the at least one optical computing device having at least one integrated computational element configured to optically interact with the sample and thereby generate optically interacted light, at least one detector arranged to receive the optically interacted light and generate an output signal corresponding to a characteristic of the sample, and a signal processor communicably coupled to the at least one detector for receiving the output signal, the signal processor being configured to determine the characteristic of the sample and provide a resulting output signal indicative of the characteristic of the sample.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Ola Tunheim, Marshall E. Webster, Alexis Wachtel, II, Robert P. Freese, James R. MacLennan
  • Publication number: 20130321804
    Abstract: Particles of a flow of aerosol are collected and analyzed by passing them through a housing having an inlet area, an outlet area, and a collection and analysis area. A collection electrode has a tip disposed in the flow path in the collection and analysis area. Particles are collected on the tip of the collection electrode. A microwave pulse is applied to the collection and analysis area such that a plasma is created. Atomic emissions produced during at least part of the microwave step are collected for analysis of the ablated particles.
    Type: Application
    Filed: March 14, 2013
    Publication date: December 5, 2013
    Applicant: CENTERS FOR DISEASE CONTROL AND PREVENTION
    Inventors: Pramod Kulkarni, Philip Efthimion
  • Publication number: 20130307954
    Abstract: An image sensor integrated circuit may contain image sensor pixels. A channel for receiving a fluid with samples may be formed on top of the image sensor. The image sensor pixels may form light sensors and imagers. The imagers may gather images of the samples as the fluid passes over the imagers or when the samples from the fluid adhere to the surface above an imager array. A protective coating may be formed on surfaces of the channel to protect the image sensor pixels and integrated circuit from potentially damaging materials in the fluid, samples, or materials provided for evaluating the samples. The protective coating may be a base-resistant material such as a silylating agent. A cover glass may be attached above the image sensor integrated circuit to form a portion of the channel. The protective coating may be formed on surfaces of the cover glass.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 21, 2013
    Applicant: Aptina Imaging Corporation
    Inventor: Brian Vaartstra
  • Publication number: 20130228706
    Abstract: There is provided an optical analysis technique which observes a polarization characteristic of a light-emitting particle using the scanning molecule counting method using an optical measurement with a confocal microscope or a multiphoton microscope. In the inventive optical analysis technique, the light detection region is irradiated with excitation light consisting of predetermined polarized light component(s) and the intensity of at least one polarized light component of the light from the light detection region is detected with moving the position of the light detection region of the optical system in a sample solution; a signal of each light-emitting particle is detected individually in the intensity of at least one polarized light component; and based on the intensity of at least one polarized light component of the signal of the detected light-emitting particle, the polarization characteristic value of the light-emitting particle is computed.
    Type: Application
    Filed: April 17, 2013
    Publication date: September 5, 2013
    Applicant: OLYMPUS CORPORATION
    Inventors: Mitsushiro Yamaguchi, Tetsuya Tanabe
  • Publication number: 20130207006
    Abstract: A measuring transducer for detecting the formation of foam on a liquid, which is movably inserted into the liquid and the density of which is predetermined, or can be set, such that the measuring transducer floats on the surface of the liquid, wherein a device for determining the luminous flux incident on the top side of the measuring transducer is provided to detect the formation of foam on the liquid which, in many cases, is a process sequence property that is important for process optimization, and wherein an evaluation device of the measuring transducer is configured to output a signal for indicating the formation of the foam when the light flux determined undershoots a predefined threshold value.
    Type: Application
    Filed: January 13, 2010
    Publication date: August 15, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventor: Christoph Weiler
  • Publication number: 20130193347
    Abstract: This invention relates to a novel method and a device for determining middle and protein bound uremic toxins in the biological fluids. More specifically, the present invention relates to an optical method utilizing fluorescence, preferable fluorescence of the spent dialysate, and a specific model, including a unique set of optical spectral components at certain wavelengths, to determine, preferable on-line, the concentration of the middle and protein bound uremic toxins such as beta2-microglobulin (B2M), and indoxyl sulfate (IS).
    Type: Application
    Filed: June 28, 2011
    Publication date: August 1, 2013
    Applicant: Tallinn University of Technology
    Inventors: Ivo Fridolin, Fredrik Uhlin, Risto Tanner, Jurgen Arund
  • Patent number: 8482733
    Abstract: An optical measurement system for obtaining information such as the absorption coefficient of a light-absorbing liquid, or a surface profile of an object immersed in a light-absorbing liquid having a known absorption coefficient. The system includes a light source that transmits light through the liquid, a detector that records an image of the light transmitted through the sample and a processor or other means adapted to analyze the intensity distribution found on the image to generate information about the sample.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: July 9, 2013
    Assignee: Kent State University
    Inventors: Michael A. Model, Anatoly K. Khitrin
  • Publication number: 20130161544
    Abstract: A gas analyzing apparatus includes a probe for measuring a concentration of sample gas flowing in a pipe by an optical measurement system. Influence of a thermal lens effect phenomenon is suppressed so that measurement accuracy is improved. The apparatus includes a probe tube disposed to cross a flow path of the sample gas in the pipe to introduce the sample gas flowing in the pipe to a predetermined hollow measurement region. A light emission portion and a light receiving portion for project measurement light to the measurement region in the probe tube and receive the measurement light after passing through the sample gas in the measurement region. A purge gas feed tube disposed in the probe tube supplies purge gas to a region between the optical system members and the measurement region, with a gap to the inner wall surface of the probe tube.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 27, 2013
    Applicant: HORIBA, LTD.
    Inventor: HORIBA, LTD.
  • Publication number: 20130119281
    Abstract: A dual sensor fire detector includes a smoke sensor and a gas sensor. A source of radiant energy emits a beam which is formed into first and second beams. One beam is directed into a smoke sensing chamber. The other is directed to a gas sensor. Outputs from the smoke sensor and the gas sensor are combined to make a fire determination.
    Type: Application
    Filed: November 10, 2011
    Publication date: May 16, 2013
    Applicant: Honeywell International Inc.
    Inventor: SCOTT R. LANG
  • Publication number: 20130092846
    Abstract: Described herein are apparatuses for detecting an analyte in a liquid sample using optical time of flight spectroscopy. A handheld apparatus for remote real-time detection of Zn2+ in aqueous environments and methods for making and using the apparatus are also described herein.
    Type: Application
    Filed: October 18, 2012
    Publication date: April 18, 2013
    Applicant: UWM RESEARCH FOUNDATION, INC.
    Inventor: UWM RESEARCH FOUNDATION, INC.
  • Publication number: 20130056656
    Abstract: Provided is an optical measuring apparatus including a light irradiating unit that irradiates a sample flowing through a flow path with light, a light detecting unit that detects optical information emitted from the sample due to light irradiation by the light irradiating unit, and a rate information adding unit that adds a predetermined display corresponding to a flow amount of the sample per unit time obtained from the optical information to a waveform data graph obtained from the optical information.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 7, 2013
    Applicant: SONY CORPORATION
    Inventor: Yosuke Muraki
  • Publication number: 20130040396
    Abstract: This invention concerns a fluorometer preferably combined with a thermal cycler useful in biochemical protocols such as polymerase chain reaction (PCR) and DNA melting curve analysis. The present fluorometer features a low heat-generating light source such as a light emitting diode (LED), having a one-to-one correspondence to each of a plurality of sample containers, such as capped PCR tubes in a standard titer tray. The fluorometer of the present invention further comprises an optical path between each LED and its correspondingly positioned container, and another optical path between each fluorescing sample within the positioned container and an optical signal sensing means. The instrument can be computer controlled.
    Type: Application
    Filed: October 17, 2012
    Publication date: February 14, 2013
    Applicant: E. I. du Pont de Nemours and Company
    Inventor: E. I. du Pont de Nemours and Company
  • Publication number: 20130032736
    Abstract: Disclosed are systems and methods for analyzing an oil/gas separation process. One disclosed system includes a flow path containing a fluid, a fluid separator coupled to the flow path and having an inlet for receiving the fluid and a discharge conduit for discharging the fluid after having undergone a separation process in the fluid separator, an optical computing device having an integrated computational element configured to optically interact with the fluid before the fluid enters the fluid separator and after the fluid exits the fluid separator and thereby generate optically interacted light, and at least one detector arranged to receive the optically interacted light and generate an output signal corresponding to a characteristic of the fluid.
    Type: Application
    Filed: September 14, 2012
    Publication date: February 7, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Ola Tunheim, Robert P. Freese, James R. MacLennan
  • Patent number: 8049895
    Abstract: Values for one or more particle properties, such as an aerosol asymmetry parameter g, can be measured directly using a detector that measures scattered light. The detector can comprise two or more diffusers coupled to optical sensors responsive to scattered light that is incident on the surfaces of the diffusers. One or more weighing functions can be obtained based on diffuser geometry. In an example, the diffusers correspond to quadrants of a circular toroid.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: November 1, 2011
    Assignee: Board of Regents of the Nevada System of Higher Education, on behalf of the Desert Research Institute
    Inventors: Hans Moosmüller, W. Patrick Arnott
  • Publication number: 20110080297
    Abstract: Method of estimating a level of fluid that is absorbed by a porous substrate, wherein fluid is absorbed by the substrate, wherein a light is arranged near the substrate such that it emits light rays directed to the substrate, wherein the light intensity of the light rays transmitted through the substrate changes under influence of the decrease of the amount of fluid that is absorbed by the substrate.
    Type: Application
    Filed: April 14, 2009
    Publication date: April 7, 2011
    Inventors: Toni Broncano Atencia, Francisca-Yolanda Perez Bonilla
  • Patent number: 7763856
    Abstract: An excitation component or arrangement can provide excitation to a moving object so that information is encoded in time variation of light emanating from the object. For example, in each of a sequence of segments, it can provide a respective non-binary excitation spectrum, and the spectra can be different with a non-interference-like transition between them; because the object emanates light differently in response to the different spectra, photosensing results can be obtained that include encoded information about the object. The non-binary spectra could be different intermediate intensities, such as different gray levels or different intensities of one color or could be different colors. The excitation can be provided in a pattern with non-interference-like transitions between regions, and object motion can also be controlled.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: July 27, 2010
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Peter Kiesel, Markus Beck, Michael Bassler, Noble M. Johnson
  • Patent number: 7652267
    Abstract: An ultraviolet (UV) fluorometric sensor measures a chemical concentration in a sample based on the measured fluorescence of the sample. The sensor includes a controller, at least one UV light source, and at least one UV detector. The sensor emits UV light in a wavelength range of 245-265 nm from the light source through the sample in an analytical area. The UV detector measures the fluorescence emission from the sample. The controller transforms output signals from the UV detector into fluorescence values or optical densities for one or more wavelengths in the wavelength range of 265-340 nm. The controller calculates the chemical concentration of the chemical in the sample based on the measured fluorescence emissions.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: January 26, 2010
    Assignee: Ecolab Inc.
    Inventors: Eugene T. Tokhtuev, Christopher J. Owen, Viktor Slobodyan, Anatoly Skirda, Paul Schilling, Anna Pilipchenko, Paul R. Kraus, Katherine M. Sanville, Joseph Phillip Erickson
  • Publication number: 20090278072
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: June 17, 2009
    Publication date: November 12, 2009
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao, Donald Bernard Bivens, Deepak Perti, Mark Steven Baunchalk
  • Patent number: 7595497
    Abstract: A fuel contaminant sensor is provided. The fuel containment sensor includes a fluid reservoir having an inlet and an outlet. A light source for projecting a light beam through the fluid reservoir is disposed on the fluid reservoir. A light beam detector for receiving the light beam projected through the fluid reservoir is disposed opposite the light source. A controller is provided for activating the light source and for receiving an output of the light beam detector. An interruption of the light beam inhibits the light beam detector from receiving the light beam.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: September 29, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventor: William C. Albertson
  • Publication number: 20090212236
    Abstract: An ultraviolet (UV) fluorometric sensor measures a chemical concentration in a sample based on the measured fluorescence of the sample. The sensor includes a controller, at least one UV light source, and at least one UV detector. The sensor emits UV light in a wavelength range of 245-265 nm from the light source through the sample in an analytical area. The UV detector measures the fluorescence emission from the sample. The controller transforms output signals from the UV detector into fluorescence values or optical densities for one or more wavelengths in the wavelength range of 265-340 nm. The controller calculates the chemical concentration of the chemical in the sample based on the measured fluorescence emissions.
    Type: Application
    Filed: May 6, 2009
    Publication date: August 27, 2009
    Applicant: Ecolab Inc.
    Inventors: Eugene Tokhtuev, Christopher J. Owen, Viktor Slobodyan, Anatoly Skirda, Paul Schilling, Anna Pilipchenko, Paul R. Kraus, Katherine M. Sanville, Joseph Phillip Erickson
  • Publication number: 20090168053
    Abstract: An optical system for acquiring fast spectra from spatially channel arrays includes a light source for producing a light beam that passes through the microfluidic chip or the channel to be monitored, one or more lenses or optical fibers for capturing the light from the light source after interaction with the particles or chemicals in the microfluidic channels, and one or more detectors. The detectors, which may include light amplifying elements, detect each light signal and transducer the light signal into an electronic signal. The electronic signals, each representing the intensity of an optical signal, pass from each detector to an electronic data acquisition system for analysis. The light amplifying element or elements may comprise an array of phototubes, a multianode phototube, or a multichannel plate based image intensifier coupled to an array of photodiode detectors.
    Type: Application
    Filed: February 12, 2009
    Publication date: July 2, 2009
    Applicant: Cytonome, Inc.
    Inventors: John R. GILBERT, Edward SINOFSKY, Manish DESHPANDE