With Means To Transmission-test Contained Fluent Material Patents (Class 250/343)
  • Patent number: 12031902
    Abstract: The invention relates to a method for contactless characterization of a substance (A) using waves (W), wherein the substance (A) comprises a spectral structure (a({tilde over (e)}i)) as a characteristic field (KF) which qualitatively depends on at least one property (ei) of the substance (A), wherein the spectral structure (a({tilde over (e)}i)) is recorded by a measurement (x), and wherein the measurement (x) may comprise an interference structure (s) that depends on the measurement circumstances.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: July 9, 2024
    Assignee: Steinfurth Mess-Systeme GmbH
    Inventor: Markus Grafen
  • Patent number: 12016654
    Abstract: An optical sensor and a method of operating the optical sensor are provided. The optical sensor includes a light source configured to emit a light, and a path adjuster configured to adjust a traveling path of the light to reflect the light at a first time, and allow the light to pass through the path adjuster at a second time. The optical sensor further includes a light receiver configured to receive a reference light among the reflected light, and receive, among the light passing through the path adjuster, a measurement light related to a target material.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: June 25, 2024
    Inventors: Sangkyu Kim, Kunsun Eom, Myounghoon Jung
  • Patent number: 12011785
    Abstract: Apparatus and techniques for laser-processing workpieces can be improved, and new functionalities can be provided. Some embodiments discussed relate to use of beam characterization tools to facilitate adaptive processing, process control and other desirable features. Other embodiments relate to laser power sensors incorporating integrating spheres. Still other embodiments relate to workpiece handling systems capable of simultaneously providing different workpieces to a common laser-processing apparatus. A great number of other embodiments and arrangements are also detailed.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: June 18, 2024
    Assignee: Electro Scientific Industries, Inc.
    Inventors: James Brookhyser, Zachary Dunn, Christopher Hamner
  • Patent number: 12000776
    Abstract: An infrared (IR) imaging system for determining a concentration of a target species in an object is disclosed. The imaging system can include an optical system including a focal plane array (FPA) unit behind an optical window. The optical system can have components defining at least two optical channels thereof, said at least two optical channels being spatially and spectrally different from one another. Each of the at least two optical channels can be positioned to transfer IR radiation incident on the optical system towards the optical FPA. The system can include a processing unit containing a processor that can be configured to acquire multispectral optical data representing said target species from the IR radiation received at the optical FPA. One or more of the optical channels may be used in detecting objects on or near the optical window, to avoid false detections of said target species.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: June 4, 2024
    Inventors: Ryan Mallery, Ohad Israel Balila, Robert Timothy Kester
  • Patent number: 11967799
    Abstract: A method of performing spectroscopic measurements provides an optical frequency comb, and directs the comb through or at a sample. The optical frequency comb is generated by gain switching a laser diode constructed from Gallium Nitride and related materials. Various techniques are described for manipulating the comb source to achieve desired benefits for spectroscopy.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: April 23, 2024
    Assignee: Pilot Photonics Limited
    Inventors: Jules Braddell, Frank Smyth
  • Patent number: 11918748
    Abstract: A respiratory assistance apparatus has a gases inlet configured to receive a supply of gases, a blower unit configured to generate a pressurised gases stream from the supply of gases; a humidification unit configured to heat and humidify the pressurised gases stream; and a gases outlet for the heated and humidified gases stream. A flow path for the gases stream extends through the respiratory device from the gases inlet through the blower unit and humidification unit to the gases outlet. A sensor assembly is provided in the flow path before the humidification unit. The sensor assembly has an ultrasound gas composition sensor system for sensing one or more gas concentrations within the gases stream.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: March 5, 2024
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Dean Antony Barker, Mikael Douglas Stewart, Peter Geoffrey Hawkins, Kevin Peter O'Donnell, Russel William Burgess
  • Patent number: 11874217
    Abstract: A device for the photoacoustic characterisation of a gaseous substance, includes a chamber intended to contain the gaseous substance to characterise and into which a light beam is injected. The chamber is delimited, inter alia, by an inner face, on which a part of the light beam is reflected. This inner face is etched so as to have recesses, each recess being delimited laterally by a lateral surface of which a part at least is tilted, with respect to an average plane of the inner face, by a given tilt angle (?).
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: January 16, 2024
    Inventors: Salim Boutami, Maryse Fournier
  • Patent number: 11867616
    Abstract: Disclosed is an optical detection system for detecting a decomposition product of a high-voltage device, including: a measurement gas chamber and a measurement host. The measurement gas chamber is disposed on the high-voltage device and is in communication with a gas chamber of the high-voltage device, a collimator and a reflector are disposed on two sides of the measurement gas chamber respectively, and the measurement host is connected to the collimator. The collimator is used for emitting measurement laser to the measurement gas chamber according to a laser signal sent by the measurement host, and receiving reflected laser from the reflector and transmitting the reflected laser to the measurement host. In the present invention, data collection and backhaul between a measurement host and a measurement gas chamber are implemented through a laser signal, thus avoiding electromagnetic interference and improving the safety of measurement for a high-voltage device.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: January 9, 2024
    Assignees: State Grid Chongqing Electric Power Co. Electric Power Research Institute, State Grid Corporation of China
    Inventors: Qiang Yao, Shiling Zhang, Yulong Miao, Yongtao Chen, Xintian Li
  • Patent number: 11844607
    Abstract: A capnograph system may be used together with a ventilation system for a patient. The capnograph system may include a capnography module with a carbon dioxide detector, which may generate a carbon dioxide signal responsive to an amount of carbon dioxide detected within an air path of the ventilation system. A monitoring circuit may further detect a pressure within the air path. A processing component within the capnography module may generate a pressure signal responsive to the pressure detected in the air path. The pressure signal, alone or in combination with other signals such as the carbon dioxide signal, may be used to detect spontaneous breaths of the patient.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: December 19, 2023
    Assignee: Physio-Control, Inc.
    Inventor: Fred W. Chapman
  • Patent number: 11841317
    Abstract: A gas detection device and process detect a target gas for monitoring an area for the target gas. A radiation source emits electromagnetic radiation (50) that penetrates the area and impinges on an array of filters (15, 25) that distributes the impinging radiation (50) onto a first gas photosensor (35), a second gas photosensor (37) and a reference photosensor (36). The first gas photosensor (35) is only sensitive to radiation in a first wavelength range, the second gas photosensor (37) is only sensitive to radiation in a second wavelength range and the reference photosensor (36) is only sensitive to radiation in a reference wavelength range. The wavelength ranges are spaced apart from one another. An analysis unit (10) analyzes signals [Sig(35), Sig(36), Sig(37)] from the three photosensors (35, 36, 37) and carries out three pair comparisons to determine whether or not the target gas is present.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: December 12, 2023
    Assignee: Dräger Safety AG & Co. KGaA
    Inventor: Andreas Flammiger
  • Patent number: 11835451
    Abstract: Provided is a gas sensor comprising first and second light emitting parts, first and second light receiving parts, a first optical path region and a second optical path region, wherein the optical path regions have a common region, an optical path length of the first optical path region is longer than that of the second optical path region, a rate of change of an output signal with respect to a gas to be measured of the first light receiving part is larger than that of the second light receiving part, a rate of change of an output signal with respect to an interference gas of the second light receiving part is larger than that of the first light receiving part, and a sensitivity peak wavelength of the second light receiving part overlaps with an absorption wavelength of water vapor.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: December 5, 2023
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Edson Gomes Camargo, Shota Isshiki
  • Patent number: 11802832
    Abstract: The present invention relates to a method (1) for determining a content of H2S in a process gas comprising H2S. The method (1) comprises extracting (2) a sample of the process gas, performing oxidation (4) of at least a major portion of H2S of the sample, whereby oxidation products comprising elemental sulfur are formed, analysing (6) the oxidized sample by optical absorption spectroscopy at wavelengths above 310 nm, and determining (8) the content of H2S in the process gas based on the analysing. The invention further relates to a system (100) for determining a content of H2S in a process gas comprising H2S, and use of system (100).
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: October 31, 2023
    Assignee: Opsis AB
    Inventors: Svante Wallin, Leif Uneus
  • Patent number: 11796464
    Abstract: A fuel quality sensor can include a pump with a suction side and a pressure side for pumping fuel along a fuel flow path between an underground reservoir and a nozzle of a fuel dispensing unit; a first transmitter disposed at the suction side of the pump on a first side of a bypass plenum in fluid communication with the fuel flow path, the first transmitter configured to transmit a first light signal at a first predetermined frequency in the bypass plenum; a receiver disposed at the suction side of the pump on a second side of the bypass plenum and configured to receive the first light signal; and a control unit electrically connected to the first transmitter and the receiver and configured to determine at least one parameter of the fuel present in the fuel flow path based on the received first light signal at the first predetermined frequency.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: October 24, 2023
    Assignee: Wayne Fueling Systems LLC
    Inventors: Mattias G. Martensson, David Dahlgren, Gustaf Gustafsson
  • Patent number: 11796456
    Abstract: A measuring device for analyzing a composition of a fuel gas including at least a first gas and a second gas different from the first gas, the first gas and the second gas absorbing an infrared light in at least one common first wavelength range in the electromagnetic spectrum, the measuring device including: an intermittent first infrared emitter; a first sample chamber for receiving the fuel gas; a first detector including at least the first gas and operating according to a photoacoustic effect; and a first filter chamber containing the second gas. The first sample chamber, the first detector, and the first filter chamber are arranged relative to each other such that an infrared light emitted from the first infrared emitter passes through the first sample chamber and the first filter chamber and impinges on the first detector.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: October 24, 2023
    Assignee: ABB Schweiz AG
    Inventors: Susanne Wiedemann, Wolfgang Kleemann, Carsten Rathke, Matias-Hugo Clavin, Juergen Kappler
  • Patent number: 11774424
    Abstract: An integrated sensor for detecting gases present in an environment is provided. The integrated sensor comprises a first gas sensor and a second gas sensor. The first gas sensor is configured to measure a first gas and the second gas sensor is configured to measure a second gas. The first gas is different from the second gas. The first gas sensor is an optical sensor and defines an optical cavity. The second gas sensor is disposed within the optical cavity of the first gas sensor.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: October 3, 2023
    Assignee: Honeywell International Inc.
    Inventors: Martin Willett, Keith Pratt
  • Patent number: 11774351
    Abstract: A method, apparatus and/or system for measuring engine oil consumption using laser induced breakdown spectroscopy.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: October 3, 2023
    Inventors: Cary Henry, Nolan Wright, Thomas Moore
  • Patent number: 11774323
    Abstract: A system, method, and device for simulating an IR signature to test an IR detection device. At least one infrared LED display is provided. Each infrared LED display contains infrared LEDs that emit the desired IR signature. A reflector reflects the IR signature toward the IR detection device. The configuration of the reflector is dependent upon the configuration of the infrared LED display and whether or not some intermediate lens system is used. The IR signature is collimated as it travels to the IR detection device. The IR signature can be collimated by the reflector or by an added lens system. The IR signature fills the field of view associated with the IR detection system. The IR signature comes from a computer-controlled display. As such, the system can simulate various IR signatures and move those IR signatures throughout the field of view of the IR detection system.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: October 3, 2023
    Assignee: DHPC Technologies, Inc.
    Inventor: Yei Wo
  • Patent number: 11761873
    Abstract: Methods may include emplacing a downhole tool within a wellbore, sampling a fluid downhole with the downhole tool; analyzing the fluid, and calculating an interfacial tension (IFT), wherein calculating the acid-base IFT contribution comprises measuring a concentration of a surface-active species directly. Apparatuses for measuring an interfacial tension (IFT) in a fluid downhole may be part of a downhole tool and may include a sampling head to sample the fluid; and a downhole fluid analysis module that includes a spectrometer capable of measuring a concentration of a surface-active species in the fluid, and a processor configured to determine the IFT of the fluid downhole based on the measured concentration of the surface-active species.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: September 19, 2023
    Inventors: Simon Ivar Andersen, Wael Abdallah, Dominic Joseph Brady, Mohammed Badri, Sharath Chandra Mahavadi, Bastian Sauerer, Mohamed Ahmed Abdel Reheem Hamdy
  • Patent number: 11740175
    Abstract: In an embodiment a method for compensating a temperature gradient effect for gas concentration sensors includes variating a temperature gradient, measuring a variation of gas concentration depending on the variation of the temperature gradient, analysing a dependence of the gas concentration and the temperature gradient for setting up an error correction function and applying the error correction function to correct measured values of the gas concentration.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: August 29, 2023
    Assignee: TDK Corporation
    Inventor: Matthias König
  • Patent number: 11714037
    Abstract: An NIR analyzer with the optical probes across a pipe, or in a bypass configuration, after a stabilizer in an oil or condensate production plant. Prior to use, liquid samples from the plant are analyzed in a chemical lab to obtain reference vapor pressure or compositional values. A chemometric model using known techniques is then built with the captured absorption spectra and the reference lab results. Preprocessing methodologies can be used to help mitigate interferences of the fluid, instrument drift, and contaminate build up on the lenses in contact with the fluid. The chemometric model is implemented through the NIR analyzer as the calibration curve to predict the vapor pressure or other values of the flowing fluid in real time.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: August 1, 2023
    Assignee: JP3 Measurement, LLC
    Inventors: Joseph Paul Little, III, Jie Zhu
  • Patent number: 11680897
    Abstract: A sample cell includes an annular support surrounding a sample region. A set of reflectors of the annular support define an optical path that reflects a source beam in a sequence of alternating directions through the sample region at a plurality of different angles such that the source beam exits the set of reflectors after having passed through the sample region a plurality of times. A micro-cell is positionable in the sample region including multi-dimensionally distributed nano-pores. A slidingly adjustable lens forms part of source and detector photomixing packages.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: June 20, 2023
    Inventor: Joseph R. Demers
  • Patent number: 11680851
    Abstract: A device for measuring surface temperature of a turbine blade based on a rotatable prism includes a probe, a prism rotating apparatus and an optical focusing apparatus. The prism rotating apparatus and the optical focusing apparatus are located inside the probe. The probe includes a probe outer casing, a probe inner casing, a water-cooled casing pipe, a sapphire window piece, a quartz prism, a light pipe, a collimating lens, a focusing lens and an infrared array detector. The prism rotating apparatus includes a rotary motor, a worm, a gear and a prism rotary table, the rotary motor rotates to drive the prism rotary table to rotate. The optical focusing apparatus includes a telescopic motor, a coupler, a lead screw and a drive rod, the telescopic motor rotates to drive the lead screw, so as to further drive the drive rod to move along the slot.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: June 20, 2023
    Assignee: University of Electronic Science and Technology of China
    Inventors: Chao Wang, Jing Jiang, Anmei Qiu, Yekui Zhong, Yi Niu, Peifeng Yu, Zezhan Zhang, Ying Duan, Xueke Gou, Guiyun Tian
  • Patent number: 11674519
    Abstract: A device and method for evaluating long-term operation of a transformer oil pump. An inlet of an oil pump is connected to an outlet of an oil tank through an oil pipe, and an outlet of the oil pump is connected to an inlet of the oil tank through an oil pipe. A pressure gauge is provided on the oil pipe to the inlet and the outlet of the oil pump, respectively. An ultra-high-frequency (UHF) sensor is provided on an inner wall of an oil pipe close to the oil pump. A pressure difference between the oil pipes to the inlet and to the outlet of the oil pump is monitored. A three-phase unbalanced current of a stator winding is monitored. The vibration of the oil pump is monitored. The rotor-to-stator rub is monitored. Based on the above inspection, a long-term health status of the oil pump is determined.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: June 13, 2023
    Inventors: Hua Yu, Guodong Li, Wei Wang, Hong Liu, Guangqi Mu, Aimin Wang, Tao Jin, Jichong Liang, Haipeng Wang, Yansong Li, Hai Zhang, Zhumao Lu, Lu Bai, Shan Lu, Yanchun Li, Xinwei Wang
  • Patent number: 11653862
    Abstract: An optical physiological sensor configured to perform high speed spectral sweep analysis of sample tissue being measured to non-invasively predict an analyte level of a patient. An emitter of the optical physiological sensor can be regulated to operate at different temperatures to emit radiation at different wavelengths. Variation in emitter drive current, duty cycle, and forward voltage can also be used to cause the emitter to emit a range of wavelengths. Informative spectral data can be obtained during the sweeping of specific wavelength regions of sample tissue.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: May 23, 2023
    Assignee: Cercacor Laboratories, Inc.
    Inventors: Cristiano Dalvi, Ferdyan Lesmana, Hung The Vo, Jeroen Poeze, Jesse Chen, Kevin Hughes Pauley, Mathew Paul, Sean Merritt, Thomas B. Blank, Massi Joe E. Kiani
  • Patent number: 11617980
    Abstract: An air filter includes filter media, a sensor, and circuitry coupled to the sensor, the circuitry configured to receive data from the sensor representative of the condition of the filter media and wirelessly transmit such data. The data may be received by a device with a display to use the information to present an indication of the filter media condition to a user.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: April 4, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Jonathan B. Arthur, Karl W. Bloedorn, Jayant Chakravarty, Gene B. Portelli, Dennis M. Glass, Michael A. Meis, Lyle L. Luppes, Daniel W. Hennen, Douglas D. Fletcher, Eric O. Hemberg, Oscar M. Hemberg
  • Patent number: 11596144
    Abstract: A method of detecting the presence of insects, including larvae, in an indoor environment, which includes the steps of (a) obtaining a sample of volatile organic compounds (VOCs); (b) separating the sampled VOCs; (c) detecting the presence or absence of “target” VOCs from at least one category: “category 1 VOCs”—VOCs emitted independently of the support on which the insects develop and emitted only in an insect infestation VOCs, “category 2 VOCs”—VOCs emitted independently of the support but may have biological origins other than insects, and “category 3 VOCs”—VOCs emitted depending on the support and emitted only in an insect infestation; (d) calculating both an insect infestation index (“3I”) and a limit value (“VL”) based on the presence or absence of the target VOCs; and (e) comparing the “3I” and “VL” values. The environment is infested for a “3I” value strictly greater than the “VL” value.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 7, 2023
    Inventors: Isabelle Lacaze, Stéphane Moularat, Enric Robine
  • Patent number: 11531022
    Abstract: A breath analyte capture device includes a breath input port into which a user exhales a breath sample, and a cartridge insertion port for receiving a disposable cartridge containing an interactant. During exhalation of a breath sample, at least a portion of the breath sample is routed through the cartridge such that the analyte (such as breath acetone) is captured by the interactant. In some embodiments, the concentration of the analyte in the breath sample is measured by monitoring a chemical reaction that occurs in the disposable cartridge. The chemical reaction may be monitored by illuminating the cartridge at each of multiple light wavelengths while measuring reflected light.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: December 20, 2022
    Assignee: Invoy Holdings Inc.
    Inventors: Lubna Ahmad, Zachary Smith, Salman Ahmad, Connie Kim, Ayman Luqman
  • Patent number: 11493432
    Abstract: A flow cell assembly (16) for a fluid analyzer (14) that analyzes a sample (12) includes (i) a base (350) that includes a base window (350B); (ii) a cap (352) having a cap window (352B) that is spaced apart from the base window (350B); and (iii) a gasket (360) that is secured to and positioned between the base (350) and the cap (352), the gasket (360) having a gasket body (360A) that includes a gasket opening (360B). The gasket body (360A), the base (350) and the cap (352) cooperate to define a flow cell chamber (362). Moreover, an inlet passageway (366) extends into the flow cell chamber (362) to direct the sample (12) into the flow cell chamber (362); and an outlet passageway (368) extends into the flow cell chamber (362) to allow the sample (12) to exit the flow cell chamber (362).
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: November 8, 2022
    Inventors: David F. Arnone, Miles James Weida
  • Patent number: 11486820
    Abstract: Various embodiments may relate a chemical sensor. The chemical sensor may include a substrate including a first sealed (or isolated) cavity and a second sealed (or isolated) cavity separate from the first sealed (or isolated) cavity. The chemical sensor may also include an emitter in the first sealed (or isolated) cavity, the emitter configured to emit infrared light. The chemical sensor may further include a detector in the second sealed (or isolated) cavity. The chemical sensor may also include a waveguide configured to carry the infrared light from the emitter to the detector. The waveguide may include a sensing portion configured such that a property of the infrared light carried through the sensing portion changes in response to a chemical entity in contact with the sensing portion. The detector may be configured to detect the change in the property (of the infrared light).
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: November 1, 2022
    Assignee: Agency for Science, Technology and Research
    Inventors: Hong Cai, Jifang Tao, Lennon Yao Ting Lee, Alex Yuandong Gu
  • Patent number: 11486819
    Abstract: A detection assembly and a method for producing a detection assemblies are disclosed. In an embodiment a detection arrangement includes an emitter configured to generate radiation having a peak wavelength in an infrared spectral range, a detector configured to receive the radiation, a mounting surface comprising at least a first contact surface and a second contact surface for external electrical connection of the detection arrangement, a form body adjoining the emitter and the detector at least in places and deflection optics, on which the radiation impinges during operation of the detection arrangement so that an optical path is formed between the emitter and the detector by the deflection optics, wherein the deflection optics include a scattering body into which the radiation enters during the operation through a surface of the scattering body facing the emitter.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: November 1, 2022
    Assignee: OSRAM OLED GMBH
    Inventors: Frank Singer, Matthias Sperl
  • Patent number: 11486821
    Abstract: A device that is configured to detect spectrally resolved emission from a material is disclosed. The device includes an optical cavity comprising a pair of substrates separated by a distance defined to restrict a photonic density of states (DOS) of the material to be detected, a detector oriented with respect to the optical cavity to receive emission from the optical cavity and a controller configured to control the distance. The pair of substrates includes facing reflective surfaces.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: November 1, 2022
    Assignees: Bar-Ilan University, Nanomotion Ltd.
    Inventors: Yaakov R. Tischler, Rena Yitzhari, Omree Kapon, Alexander Palatnik, Merav Muallem, Hagit Aviv, Nir Karasikov, Gal Peled, Roman Yasinov
  • Patent number: 11480519
    Abstract: Methods, apparatuses, and systems for improving gas detecting devices are provided. An example gas detecting device may include a receiver element. In some examples, the receiver element may include a sample filter component and a reference filter component. In some examples, the sample filter component may be positioned coaxially with the reference filter component.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: October 25, 2022
    Inventors: Rodney Royston Watts, Antony Leighton Phillips
  • Patent number: 11460400
    Abstract: Apparatuses for measuring sample materials (such as tissue samples) and associated methodologies and instrumentation involve a spectroscopy system or device configured with a sample measuring device (e.g., an attenuated total reflection infrared (ATR-IR) sample measuring device) including a crystal defining a sample receiving surface/interface operatively connected to an IR source and an IR detector. The sample receiving surface/interface facilitates assessing presence (and optionally, amount) of a fixative (e.g., formaldehyde) in sample materials, tissue samples for example. Measurements are taken at one or multiple locations within a sample placement structure/area, which can be provided in the form of a probe or a raised piercing structure containing one or more ATR-IR (or other) sample measuring devices.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: October 4, 2022
    Assignee: SAKURA FINETEK U.S.A., INC.
    Inventors: Amit D. Shah, Cristina R. Flores
  • Patent number: 11460407
    Abstract: For the purpose of gas quality monitoring, a spectroscopic examination of a gas sample from a space (10) to be monitored is carried out, e.g. by Raman spectroscopy. The spectroscopic examination yields a measurement spectrum extending over a wavelength range. A deviation of the measurement spectrum from at least one comparison sample (160) is then detected. Depending on the detected deviation, a gas quality warning (QW) is produced.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: October 4, 2022
    Assignees: Carl Zeiss Jena GmbH, Carl Zeiss Spectroscopy GmbH
    Inventors: Michael Rode, Alexandre Gatto, Arnaud Deparnay, Michael Helgert
  • Patent number: 11460607
    Abstract: An apparatus includes a substrate, a first patterned layer, and a second patterned layer. The first patterned layer may be coupled to the substrate and may have a first metasurface pattern. The second patterned layer disposed separately from the substrate and the first patterned layer, and may have a second metasurface pattern. Movement of the first patterned layer relative to the second patterned layer may be controllable via control circuitry such that a gap distance of a gap between the first patterned layer and the second patterned layer is changed to cause a transmittance for radiant energy of a selected wavelength passing through the apparatus to change from a first transmittance value to a second transmittance value.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: October 4, 2022
    Assignee: The Johns Hopkins University
    Inventors: David B. Shrekenhamer, Luke J. Currano, Konstantinos Gerasopoulos, Joseph A. Miragliotta, Joshua B. Broadwater, Garret T. Bonnema
  • Patent number: 11415559
    Abstract: A method for measuring the concentration of a gas includes heating a first gas with a pulse of light, the pulse of light having a wavelength absorbed by the first gas, wherein the first gas exerts pressure on a flexible membrane. The method includes receiving a first signal indicating a first deflection of the membrane, wherein the first deflection is due to a change in pressure of the first gas and receiving a second signal indicating a second deflection of the membrane occurring after the first signal, wherein the second deflection is due to the change in pressure of the first gas. The method includes determining a difference between the first signal and the second signal and, based on the difference between the first signal and the second signal, determining a first concentration of the first gas.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: August 16, 2022
    Inventors: David Tumpold, Christoph Glacer
  • Patent number: 11391724
    Abstract: A breath test system is provided comprising a sensor unit configured to sense the presence or concentration of a volatile substance present in air flowing through a predefined inlet area, and generate a signal corresponding to the concentration of said substance. Also provided is an apparatus configured to detect the presence of a person in the vicinity of said input area, and registering said presence, and configured to respond by delivering an output. This apparatus includes a unit configured to call for immediate attention of said person, and upon registration of the presence of said person, provide instructions to said person to direct an expiratory air flow towards said inlet area. An analyzer to determine breath substance concentration of said person is also provided, the determination based on said signal corresponding to the substance concentration.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: July 19, 2022
    Assignee: Automotive Coalition For Traffic Safety, Inc.
    Inventors: Bertil Hok, Lars Tenerz, Leif Smith, Annika Kaisdotter Andersson
  • Patent number: 11385124
    Abstract: A device (1) for detecting microleakages from kegs (2) and similar containers containing a liquid with CO2 under pressure is provided with an outlet mouth (21) and a sealing valve (22). The device (1) includes a detection head (10) adapted to seal and couple with the keg (2) at the outlet mouth (21). The detection head (10) includes a measuring chamber (11) adapted to face over the outlet mouth (21). A light source (12) has an infrared component with wavelengths corresponding to CO2 absorption wavelengths facing the measuring chamber (11). A light sensor (13) faces the measuring chamber (11) for detecting the infrared light component with wavelengths corresponding to the CO2 absorption wavelengths emitted in the measuring chamber (11) by the light source (12). The measuring chamber (11) includes at least one air inlet (14) and at least one air vent (15).
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: July 12, 2022
    Assignees: CO.MAC. S.R.L., FT SYSTEM S.R.L.
    Inventors: Fabio Donadoni, Paolo Tondello
  • Patent number: 11386291
    Abstract: A method of training a neural network (Convolutional Neural Network-CNN) including reduced graphical annotation input is provided. The training method can be used to train a Testing CNN that can be used for determining Hemolysis (H), Icterus (I), and/or Lipemia (L), or Normal (N) of a serum or plasma portion of a test specimen. The training method includes capturing training images of multiple specimen containers including training specimens, generating region proposals of the serum or plasma portions of the training specimens; and selecting the best matches for the location, size and shape of the region proposals for the multiple training specimens. The obtained features (network and weights) from the training CNN can be used in a testing CNN. Quality check modules and testing apparatus adapted to carry out the training method, and characterization methods using abounding box regressor are described, as are other aspects.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: July 12, 2022
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Stefan Kluckner, Yao-Jen Chang, Kai Ma, Vivek Singh, Terrence Chen, Benjamin S. Pollack
  • Patent number: 11369964
    Abstract: An embodiment of the present disclosure is a sample vessel for a holding a sample for analysis by a sample analyzer. The sample vessel includes a body that includes a bottom, an open top spaced from the bottom along a first axis, a side wall that extends from the open top to the bottom, and an interior chamber for holding a sample and that extends from the open top toward the bottom along the first axis. The body includes an opaque portion, a first translucent portion, and a second translucent portion spaced from the first translucent portion a distance that extends along a second axis that is perpendicular to the first axis. The first and second translucent portions are each disposed along the bottom of the body.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 28, 2022
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Jeffrey Jasperse, Normand Desmarais
  • Patent number: 11361121
    Abstract: A method of optimizing the layout of a smoke detection system in a space includes obtaining requirements for the smoke detection system, accessing a digital representation of physical and functional characteristics of the space, integrating the requirements and the digital representation of physical and functional characteristics of the space in a fiber deployment algorithm, determining a layout of smoke detection system components based on the fiber deployment algorithm, and installing the smoke detection system in the space according to the determined layout.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 14, 2022
    Inventors: Michael J. Birnkrant, Jie Xi
  • Patent number: 11344261
    Abstract: Devices, systems, and methods herein relate to predicting infection of a patient. These systems and methods may comprise illuminating a patient fluid in a fluid conduit from a plurality of illumination directions, measuring an optical characteristic of the illuminated patient fluid using one or more sensors, and predicting an infection state of the patient based at least in part on the measured optical characteristic.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: May 31, 2022
    Assignee: GastroKlenz Inc.
    Inventors: Eric Hsiang Yu, Aly R. Elbadry, Carlos Rovira Borras, Daniel Elliott Francis
  • Patent number: 11320411
    Abstract: The invention relates to a device for measuring, in near-real-time, the level of black carbon, brown carbon, organic carbon, total carbon and CO2 in air. The device also provides for a direct calculation of aerosol angstrom coefficient as well as estimation of emissions rates of black carbon or brown carbon from nearby combustion sources.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 3, 2022
    Inventors: Paul A. Solomon, Thomas Kirchstetter
  • Patent number: 11300599
    Abstract: In a general aspect, a vapor cell includes a body defined by a stack of layers bonded to each other. The stack of layers defines an array of cavities that includes first and second subsets of cavities. The first subset of cavities extends through intermediate layers of the stack of layers and the second subset of cavities extends entirely through the stack of layers. The vapor cell includes a vapor or a source of the vapor disposed in each of the first subset of cavities. The stack of layers includes a first end layer disposed at a first end of the body and a second end layer disposed at a second, opposite end of the body. The intermediate layers are positioned between the first and second end layers.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: April 12, 2022
    Assignee: Quantum Valley Ideas Laboratories
    Inventors: Hadi Amarloo, Jennifer Ann Joe Erskine, Jaime Ramirez-Serrano, Somayeh M. A. Mirzaee, James P. Shaffer
  • Patent number: 11237116
    Abstract: A device for detecting characteristics of a fluid, with a light source for emitting several light beams, of which one of the light beams is a measurement beam, which is provided for a passage through the fluid, and another light beam is a reference beam, which is provided for bypassing the fluid, with a movable cover device arranged downstream of the light source, which cover device is provided for covering the light beams and which is arranged so as to be transferable between a first position releasing the measurement beam and covering reference beam, and a second position covering the measurement beam and releasing the reference beam, and with a light detector arranged downstream of the cover device.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: February 1, 2022
    Inventors: Alexander Benz, Roman Morawek, Bernd Spigaht, Andreas Weingartner
  • Patent number: 11192112
    Abstract: Provided herein are an optical test platform and corresponding method of manufacturing the same. The test platform may include a shell defining a cavity for receiving a sample tube, a first aperture, and a second aperture. The first aperture and the second aperture of the shell may each be configured to optically couple the cavity with an exterior of the shell. The test platform may further include a first window and a second window embedded in the shell. The first window may seal a first aperture and the second window may seal a second aperture. The first window and second window may each permit the optical coupling of the cavity with the exterior of the shell. The first window and the second window may be optically coupled via the cavity, and the shell may prohibit optical coupling between the first window and the second window through the shell.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: December 7, 2021
    Assignee: bioMerieux, Inc.
    Inventors: Jack R. Hoffmann, Jr., Gregory R. Maes, Jeffrey Edward Price, Jared Ian Bullock, Samuel B. Crandall, Jacky S. Yam, Christopher George Kocher, Walter J. Clynes
  • Patent number: 11193885
    Abstract: In accordance with an embodiment, a gas sensor includes a substrate having a cavity for providing an optical interaction path; a thermal emitter configured to emit broadband IR radiation; a wavelength selective structure configured to filter the broadband IR radiation emitted by the thermal emitter; and an IR detector configured to provide a detector output signal based on a strength of the filtered IR radiation having traversed the optical interaction path.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: December 7, 2021
    Inventors: Andreas Tortschanoff, Cristina Consani, Thomas Grille, Peter Irsigler, Christian Ranacher
  • Patent number: 11181474
    Abstract: A terahertz wave signal analysis device includes a fitting processing unit 13 that fits synthetic waveforms of a plurality of normal distribution functions which differ in at least one of a center frequency, an amplitude, and a width to a frequency spectrum obtained from a terahertz wave signal and a graph generating unit 14 that generates a graph using at least one of a center frequency, an amplitude, and a width of a plurality of normal distribution functions used in the fitting as parameters, and it is possible to visualize a feature corresponding to a characteristic of a sample in the form of a graph in an easy-to-understand manner by approximating a frequency spectrum which does not clearly appear because a difference in the characteristic of the sample becomes a feature of a waveform by synthetic waveforms of a plurality of normal distribution functions in a form in which the characteristic of the sample is taken over and generating a graph on the basis of parameters of a plurality of normal distributio
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: November 23, 2021
    Assignee: FEMTO Deployments Inc.
    Inventors: Akira Watanabe, Tadashi Okuno, Takeji Ueda
  • Patent number: 11175218
    Abstract: A flow cell includes a cell into which a liquid to be measured is introduced and is arranged so that a measurement light to be used for measuring an optical characteristic of the liquid enters one side of the cell and exits from the other side of the cell, an inlet for leading the liquid to flow into the cell, and an outlet for leading the liquid in the cell to flow out from the cell. The inlet and the outlet are provided to form an interface between a liquid flowing into the cell through the inlet and a liquid with which the cell has been already filled at two places on an optical path of the measurement light passing through the cell.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: November 16, 2021
    Assignee: Shimadzu Corporation
    Inventor: Masato Watanabe
  • Patent number: 11150182
    Abstract: A method for testing an analysis apparatus that analyzes a first fluid flowing through a pipe using light that has passed through a probe attached to and disposed inside the pipe such that a portion of a light path passes outside a housing of the probe. The method includes: after a second fluid that absorbs less of the light than the first fluid has been introduced into the pipe, introducing a third fluid having predetermined absorption characteristics into the housing of the probe; and analyzing the absorption characteristics of the third fluid using the light that has passed through the probe.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: October 19, 2021
    Inventors: Yoshihisa Hidaka, Gen Matsuno, Shigeru Takezawa, Hideko Tanaka, Kaori Sakuma, Akihiro Murata, Toshiki Ohara