Sensing Apparatus Patents (Class 73/649)
  • Patent number: 11180361
    Abstract: A MEMS device includes a first electrode structure and a second electrode structure forming a capacitive sensing arrangement. The MEMS device includes a plurality of anti-stiction bumps arranged between the first electrode structure and the second electrode structure at a corresponding plurality of locations. The plurality of locations being projected into a main surface of the second electrode structure is distributed so as to comprise a first distribution density in a first main surface region of the main surface and so as to comprise second, different distribution density in a second main surface region of the main surface, the second main surface region being delimited from the first main surface region.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: November 23, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Marc Fueldner, Arnaud Walther
  • Patent number: 11117766
    Abstract: A multi-feed detection device includes a transmission circuit substrate to which an ultrasonic transmitter transmitting an ultrasonic wave is installed, and an ultrasonic receiver receiving the ultrasonic wave. The ultrasonic transmitter has arrayed ultrasonic transmission elements and transmits ultrasonic waves with different phases from the ultrasonic transmission elements to transmit the ultrasonic waves in a direction diagonally intersecting a thickness direction of the transmission circuit substrate.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: September 14, 2021
    Inventor: Eiji Osawa
  • Patent number: 10969269
    Abstract: A method of sensing vibrations or displacements remotely is provided. Magnets are attached to vibrating objects or the vibrating objects themselves are magnetic. A number of magnetic sensors are placed a specified distance from the magnets. Vibrational displacement of the vibrating objects is determined according to a model that maps changes in magnetic field to vibrations or spatial displacements.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: April 6, 2021
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Yi Chen Mazumdar, Martin Nemer, Anirban Mazumdar, Bart G. van Bloemen Waanders, Carlton F. Brooks, Oksana Guba, Stephen D. Bond
  • Patent number: 10870441
    Abstract: A system and method for inspecting a railway track using sensors oriented at an oblique angle relative to a rail vehicle on which the system is traveling. The orientation of the sensors allows for different data to be gathered regarding a particular rail including rail design specifications (gathered based on manufacturer markings detected and analyzed by the system), rail seat abrasion values based on direct measurement of rails from the oblique angle, and other analysis of rail features including joint bars, rail welds, bond wires, rail holes, and broken rails. The use of an air blower, ducts, and one or more air distribution lids over the sensors helps remove debris from blocking the sensors and structured light generators.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: December 22, 2020
    Assignee: TETRA TECH, INC.
    Inventor: Darel Mesher
  • Patent number: 10809152
    Abstract: A method for analyzing the condition of a machine having a rotating shaft, including: generating an analogue electric measurement signal (SEA) dependent on mechanical vibrations emanating from rotation of the shaft; sampling the analogue measurement signal at a sampling frequency (fS) so as to generate a digital measurement data signal (SMD) in response to the received analogue measurement data; performing a decimation of the digital measurement data signal (SMD) so as to achieve a digital signal (SRED) having a reduced sampling frequency (fSR1, fSR2); wherein the decimation includes the step of controlling the reduced sampling frequency (fSR1, fSR2) such that the number of sample values per revolution of the shaft (8) is kept at a substantially constant value; and performing a condition analysis function (F1, F2, Fn) for analyzing the condition of the machine dependent on the digital signal (SRED) having a reduced sampling frequency (fSR1, fSR2).
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 20, 2020
    Assignee: S.P.M. Instrument AB
    Inventor: Lars-Olov Elis Hedin
  • Patent number: 10809123
    Abstract: The present invention relates to a device for generating an ultrasonic vibration of a tool used for the ultrasonic machining of a workpiece and for measuring ultrasonic vibration parameters of the ultrasonic vibration of the tool having a tool holder for receiving the tool, an ultrasonic transducer in the tool holder for generating the ultrasonic vibration of the tool, a sensor mechanism in the tool holder for producing a sensor signal on the basis of the ultrasonic vibration of the tool, and a sensor signal evaluation device for evaluating the sensor signal.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: October 20, 2020
    Assignee: SAUER GmbH
    Inventor: Jens Ketelaer
  • Patent number: 10451474
    Abstract: An apparatus and method for determining an operational state of a motor are described. The apparatus includes a sensor or detecting vibration and a processor coupled to the sensor. The processor converts sensed vibration signals into the frequency domain to produce a vibration characteristic, and determines a current operational state of the motor based on the vibration characteristic, wherein the current operation state is determined from at least two different operational states including at least one idle state and at least one working state.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: October 22, 2019
    Assignee: Redtail Telematics Limited
    Inventors: Colin Smithers, Kevin Jones, Gareth Jones
  • Patent number: 10427188
    Abstract: A capacitive micromachined ultrasonic transducer (CMUT) and methods of forming the same are disclosed herein. In one implementation, the CMUT comprises a glass substrate having a cavity; a patterned metal bottom electrode situated within the cavity of the glass substrate; and a vibrating plate comprising at least a conducting layer, wherein the vibrating plate is anodically bonded to the glass substrate to form an air-tight seal between the vibrating plate and the substrate and wherein a pressure inside the cavity is less than atmospheric pressure (i.e., a vacuum). In another implementation, the CMUT comprises a glass substrate with Through-Glass-Via (TGV) interconnects, wherein a metal electrode is electrically connected to a TGV and wherein said metal electrode can be in the bottom of a cavity of the glass substrate or on the vibrating plate.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: October 1, 2019
    Assignee: North Carolina State University
    Inventors: Omer Oralkan, Feysel Yalcin Yamaner, Xiao Zhang
  • Patent number: 10359751
    Abstract: The system generally includes a crosspoint switch in the local data collection system having multiple inputs and multiple outputs including a first input connected to the first sensor and a second input connected to the second sensor. The multiple outputs include a first and second output configured to be switchable between a condition in which the first output is configured to switch between delivery of the first sensor signal and the second sensor signal and a condition in which there is simultaneous delivery of the first sensor signal from the first output and the second sensor signal from the second output. Each of multiple inputs is configured to be individually assigned to any of the multiple outputs. Unassigned outputs are configured to be switched off producing a high-impedance state. The local data collection system is configured to manage data collection bands. The local data collection system includes a neural net expert system using intelligent management of the data collection bands.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: July 23, 2019
    Assignee: Strong Force IOT Portfolio 2016, LLC
    Inventors: Charles Howard Cella, Gerald William Duffy, Jr., Jeffrey P. McGuckin
  • Patent number: 10350613
    Abstract: A method and apparatus for manipulating polarizable dielectric particles. The method includes positioning a liquid containing the particles above a surface of a piezoelectric material (2). The method also includes inducing a shear-horizontal surface acoustic wave in the piezoelectric material (2), thereby to form a time-varying non-uniform evanescent electric field extending into the liquid. The method further includes using the time-varying non-uniform evanescent electric field to apply a force to at least some of the particles (50, 52) by dielectrophoresis.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: July 16, 2019
    Assignee: UNIVERSITY OF LEEDS
    Inventors: Christoph Walti, Alban Josiah Smith, Richard O'Rorke, Alexander Giles Davies, Christopher David Wood
  • Patent number: 10342518
    Abstract: A Multiple Aperture Ultrasound Imaging system and methods of use are provided with any number of features. In some embodiments, a multi-aperture ultrasound imaging system is configured to transmit and receive ultrasound energy to and from separate physical ultrasound apertures. In some embodiments, a transmit aperture of a multi-aperture ultrasound imaging system is configured to transmit an omni-directional unfocused ultrasound waveform approximating a first point source through a target region. In some embodiments, the ultrasound energy is received with a single receiving aperture. In other embodiments, the ultrasound energy is received with multiple receiving apertures. Algorithms are described that can combine echoes received by one or more receiving apertures to form high resolution ultrasound images. Additional algorithms can solve for variations in tissue speed of sound, thus allowing the ultrasound system to be used virtually anywhere in or on the body.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: July 9, 2019
    Assignee: MAUI IMAGING, INC.
    Inventors: Donald F. Specht, Kenneth D. Brewer
  • Patent number: 10342455
    Abstract: A method for detecting physiological information, adapted to a wearable multi-axis accelerometer for detecting the physiological information, the method comprises obtaining a detecting signal in a sampling time via the multi-axis accelerometer; detecting peaks of the detecting signal in a first searching time interval to obtain a plurality of first peaks; calculating first time intervals between every two adjacent first peaks, and taking maximum of the first time intervals as a second searching time interval; detecting peaks of the detecting signal in the second searching time intervals to obtain a plurality of the second peaks; and obtaining the physiological information from the detecting signal based on the second peaks.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: July 9, 2019
    Assignee: ASUSTeK COMPUTER INC.
    Inventors: Hung-Yu Yang, Shou-Wei Chen
  • Patent number: 10158193
    Abstract: A sensor arrangement for use in process automation, including a sensor with at least one sensor element for detecting a measurand of process automation, a first interface for transmitting a value that is a function of the measurand to a second interface, and a first coupling body having the first interface, the sensor further including a connection element for transmitting the value to a higher-level unit, the connection element including a first housing section with a second interface complementary to the first interface, wherein the first and second interfaces are designed for bi-directional communication between the sensor and the higher-level unit and to ensure the power supply to the sensor, a second housing section with a second coupling body complementary to the first coupling body and having an open and a locked condition, wherein the first housing section can be rotated in relation to the second housing section.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 18, 2018
    Assignee: Endress + Hauser Conducta GmbH + Co. KG
    Inventor: Sven-Matthias Scheibe
  • Patent number: 10088385
    Abstract: A method includes receiving, by a first wireless device integrated into a management facility from a second wireless device integrated into a detection device, environmental conditions produced by a structure and detected by the detection device attached to the structure; and processing, by the management facility, the environmental conditions to detect a deviation from an expected operation of the structure.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: October 2, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Paul D'Orlando, Rosanna C. Glynn, William R. Fiske, Radoslaw Zakrzewski, Fanping Sun, Joseph V. Mantese, Thomas M. Zywiak, Bernard Dion, Christopher McAuliffe, Meade G. Ferrigan
  • Patent number: 10036665
    Abstract: An inspection system includes a first ultrasonic probe positioned on and configured to move along a surface of a component. The first ultrasonic probe transmits ultrasonic energy. The inspection system also includes a second ultrasonic probe positioned on and configured to move along the surface of the component opposite the first probe. The second ultrasonic probe receives the ultrasonic energy transmitted by the first ultrasonic probe. Additionally, the inspection system includes a probe alignment system in communication with the first ultrasonic probe and the second ultrasonic probe. The probe alignment system is configured to analyze an energy characteristic for the ultrasonic energy received by the second ultrasonic probe to determine if a displacement characteristic for at least one of the first ultrasonic probe and the second ultrasonic probe requires adjustment.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: July 31, 2018
    Assignee: General Electric Company
    Inventor: Robert William Bergman
  • Patent number: 9656052
    Abstract: An acoustic line tracing system for tracing a fluid transfer system tubing line includes an acoustic receiver operably connectable to the tubing line and configured to receive the vibratory signal. The acoustic receiver includes a vibration sensor disposed to contact the tubing line and configured for detecting vibration of the surface of the tubing line caused by the vibratory signal, and an indicator producing at least one of an audio and a visual cue when the vibration sensor detects the vibratory signal.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: May 23, 2017
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: James Scott Slepicka, Thomas Edward Dudar
  • Patent number: 9644963
    Abstract: This application discusses simplified interface circuits for a gyroscope. In an example, an interface can include an automatic gain control (AGC) circuit configured to couple to driver for a proof mass of a gyroscope sensor and to drive the proof-mass to oscillate at a predefined oscillation amplitude, and a phase-locked loop (PLL) configured to receive sensed oscillation information from the proof-mass and to provide at least a first phase signal synchronized with a sinusoidal waveform of the sensed oscillation information.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: May 9, 2017
    Assignee: FAIRCHILD SEMICONDUCTOR CORPORATION
    Inventors: Shungneng Lee, Hai Tao, Ion Opris, Shanthi Pavan
  • Patent number: 9486809
    Abstract: A method is disclosed for operating a mill at continuous input and output mass flows, and to the mill, wherein a process model based on power balance equations and mass balance equations is used. Characteristic process variables can be measured in a simple manner outside the mill. Characteristic process variables which are still not known can be ascertained by means of inserting the measured values into a respective power balance equation, assuming that the other process variables are in each case known or are insignificant. On this basis, the mill can be actuated in an optimum manner in order to provide a high output power.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: November 8, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Harald Held, Michael Metzger, Florian Steinke
  • Patent number: 9283315
    Abstract: Apparatus and method for non-invasively determining the level of a constituent of a patient's blood drawn though an elastomeric tubing to a dialysis machine deforms the tubing in the slot of a measuring head having two points of different transverse length with a transmit/receive sensor at each point that transmits a signal through the tubing and the blood and is reflected back to it from the tubing internal wall. The round trip transit time of the signal at each sensor is measured and the blood sound velocity is calculated from the two round trip transit times and the differential of the transverse lengths at the two points. Blood hematocrit level, which is related to blood volume, is calculated from the calculated sound velocity and an empirical relationship.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: March 15, 2016
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventor: Naim Dam
  • Patent number: 9121707
    Abstract: A bending vibration piece has a pair of drive vibration arms and a pair of detection vibration arms in an opposite direction thereto which are connected to a supporting part. The supporting part has recessed portions formed on both lateral parts in a direction of width, and a through-hole formed substantially at the center in a plane part of the supporting part and more toward the drive vibration arms than the recessed portions are. On a surface of the supporting part, drive electrode pads are arranged toward the drive vibration arms and detection electrode pads are arranged toward the detection vibration arms, with these electrode pads being separated from each other in a longitudinal direction by the recessed portions on both lateral part of the supporting part and the through-hole in the plane part.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: September 1, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Masashi Shimura, Takayuki Kikuchi
  • Patent number: 9115989
    Abstract: Described are a method and apparatus for determining based on motion data when an individual wearing a dosimeter is active. Also described are a method and apparatus for determining based on motion data whether an individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data whether a dosimeter was in a particular location when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data where on the body of an individual the individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data the probability that an individual is wearing a dosimeter that is assigned to the individual.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: August 25, 2015
    Assignee: LANDAUER, INC.
    Inventors: Daniel J. Valentino, R. Craig Yoder
  • Patent number: 9063165
    Abstract: Described are a method and apparatus for determining based on motion data when an individual wearing a dosimeter is active. Also described are a method and apparatus for determining based on motion data whether an individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data whether a dosimeter was in a particular location when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data where on the body of an individual the individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data the probability that an individual is wearing a dosimeter that is assigned to the individual.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: June 23, 2015
    Assignee: LANDAUER, INC.
    Inventors: Daniel J. Valentino, R. Craig Yoder
  • Publication number: 20150143913
    Abstract: Apparatuses and methods for detecting hidden or modified objects in a vehicle are disclosed. Embodiments include detection of vehicle irregularities, such as irregularities in the acoustical response of a vehicle tire as the tire rolls over a surface, irregularities in the orientation of the vehicle body, the response of a vehicle component (such as an axle, wheel, tire, etc.) to the vehicle moving over a surface, and the response of a vehicle component to vehicle generated vibrations. In alternate embodiments subsystems detecting different irregularities communicate with one another.
    Type: Application
    Filed: January 22, 2013
    Publication date: May 28, 2015
    Applicant: Purdue Research Foundation
    Inventor: Purdue Research Foundation
  • Publication number: 20150122034
    Abstract: A detection device includes a driving circuit which drives a physical quantity transducer, a detection circuit which detects a desired signal, a power-supply terminal into which a power-supply voltage is input, a regulator circuit which performs a voltage adjustment of stepping down the power-supply voltage from the power-supply terminal, and supplies a regulated power-supply voltage obtained by the voltage adjustment to the driving circuit and the detection circuit as an operating power-supply voltage, and a buffer circuit which is supplied with the power-supply voltage, receives a drive signal from the driving circuit, and outputs an amplified drive signal in which an amplitude of the drive signal increases to the physical quantity transducer.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Inventors: Katsuhiko MAKI, Teppei HIGUCHI, Takashi NOMIYA
  • Publication number: 20150122035
    Abstract: A detection device includes a driving circuit which drives a vibrator, and a detection circuit which detects a desired signal. The driving circuit includes a current-voltage conversion circuit which receives a feedback signal, and performs a current-voltage conversion, a drive signal output circuit which amplifies an input voltage signal after being subjected to the current-voltage conversion, and outputs a drive signal of a sine wave, and a gain control circuit which controls a gain of amplification of the drive signal in the drive signal output circuit. When a resistance for a current-voltage conversion is set to RI, the gain of the amplification of the drive signal in the drive signal output circuit is set to K, and an equivalent series resistance in a fundamental wave mode of the vibrator is set to R, the gain control circuit performs a gain control such that K√óRI=R is satisfied.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 7, 2015
    Inventors: Katsuhiko MAKI, Masahiro KANAI
  • Patent number: 9016131
    Abstract: At least two sound pressure sensors in parallel with each other are inserted into a liquid to which waves are applied. The sound pressure sensors have a bar-like shape and the same sensitivity. In a first synchronized state waves detected by the sound pressure sensors are synchronized with each other. The sound pressure sensors are moved relative to each other in a longitudinal direction, to break the first synchronized state and then establish a second synchronized state in which the waves detected by the sound pressure sensors are again synchronized with each other. A wavelength of the detected waves is determined according to a quantity of the relative movement of the sound pressure sensors between the first and second synchronized states. The detection of a wavelength of waves applied to the liquid is usable to evaluate and control a total amount of dissolved gases in the liquid.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: April 28, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventor: Shuichi Akutsu
  • Publication number: 20150107363
    Abstract: A piezoelectric vibration sensor includes a piezoelectric element which is in a form of flat plate, an element holding plate which is in a form of flat plate, and first and second support members. An electrode is arranged on at least one plane of the piezoelectric element. The piezoelectric element is joined to one plane of the piezoelectric element. The first support member and the second support member support the piezoelectric element and the element holding plate. A vibration film activates vibration of the element holding plate between the first support member and the second support member. Moreover, the element holding plate is joined to each of the first support member and the second support member through the vibration film. As a result, it is possible to obtain high sensitivity in a wide frequency range and to withstand an impact which is added from the outside.
    Type: Application
    Filed: March 18, 2013
    Publication date: April 23, 2015
    Inventors: Masatake Takahashi, Shigeki Shinoda, Soichiro Takata, Shigeru Kasai, Yasuhiro Sasaki
  • Patent number: 8973443
    Abstract: The present invention relates to an ultrasound therapy system using high-intensity focused ultrasound. The ultrasound therapy improves ultrasound and heat release characteristics and provides an ultrasound probe which easily performs manufacturing and maintenance processes. According to the present invention, a housing is recessed on the inward side around the upper-part edge. A plurality of mounting holes is uniformly formed from the outside at a constant radius to the edge in the center of the upper part. A plurality of probe units is respectively installed in the plurality of mounting holes to form a sphere on the upper part of the housing. And a grounding film covers the sphere which the plurality of probe units forms.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: March 10, 2015
    Assignee: Humanscan Co., Ltd
    Inventors: Sung Min Rhim, Ho Jung, Do Kyeong Kim
  • Publication number: 20150059480
    Abstract: A method for validating a workpiece measurement in a hand-held spatial dimension measurement metrology tool comprises vibrating a portion of the metrology hand tool using the vibration excitation element; sensing a vibration signature using the vibration sensor configuration; identifying a valid contact state between the metrology hand tool and the workpiece based on a vibration signature criterion; identifying a valid seating state based on a measurement stability criterion applied to a set of dimensional measurements of the metrology hand tool; and indicating that a dimensional measurement is valid for a dimensional measurement that is obtained when the valid contact state and the valid seating state occur simultaneously.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 5, 2015
    Applicant: Mitutoyo Corporation
    Inventors: Matthew Raymond Dockrey, Casey Edward Emtman
  • Publication number: 20150059481
    Abstract: A system (100) for determining a property of an object (106) comprises an inducing arrangement (102), a detector (104) and a processor. The inducing arrangement (102) is configured to generate an impulse of fluid and for directing the impulse of fluid towards the object to induce a physical vibration of the object (106). The inducing arrangement (102) does not contact the object 106 when inducing the physical vibration of the object (106). The detector (104) is configured to detect the physical vibration of the object (106). The detector (104) does not contact the object 106 when detecting the physical vibration of the object (106). The processor is coupled to the detector (104) for determining the property of the object (106) based on at least the detected physical vibration.
    Type: Application
    Filed: February 21, 2013
    Publication date: March 5, 2015
    Inventors: Peter Niven Schaare, Roderick Munro McDonald, Vincent Andrew McGlone
  • Patent number: 8966985
    Abstract: A resonator has a body of silicon-based material with at least one resonant part having at least one portion covered in an electrical conduction layer and at least one portion not covered in a conduction layer. The portion of the resonator not covered in a conduction layer is covered in a passivation layer in such a manner that, in the resonant part, the silicon-based material is completely covered by the conduction layer and by the passivation layer in combination. A vibrating sensor is also provided which includes such a resonator and a method of fabricating the resonator.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: March 3, 2015
    Assignee: Sagem Defense Securite
    Inventor: Paul Vandebeuque
  • Publication number: 20150053006
    Abstract: A timepiece having at least one quartz oscillator and/or at least one transducer. A method for authenticating a timepiece includes measuring acoustic vibrations emitted by the timepiece to obtain an electrical signal, performing a transform of said electrical signal into at least one domain, extracting identification information from the transformed electrical signal, comparing the extracted information with at least one reference information, and determining an authenticity of said timepiece based on the comparing.
    Type: Application
    Filed: August 22, 2014
    Publication date: February 26, 2015
    Inventors: Eric DECOUX, Andrea CALLEGARI
  • Publication number: 20150033865
    Abstract: An apparatus to detect vibration is provided. The apparatus comprises an optical transmitter and an optical receiver. The optical transmitter is configured to send an optical signal that is modified by a vibration sensor. The optical receiver configured to receive the optical signal from the vibration sensor, the optical signal comprising fluctuations responsive to vibration of the vibration sensor. The optical signal includes a radio frequency (RF) signal. The vibration sensor is comprised by an optical assembly configured to detect underground vibrations.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Applicant: Raytheon Company
    Inventor: Andrew R. Rollinger
  • Publication number: 20150027229
    Abstract: A seismic sensor detects a characteristic of a medium during a seismic survey. The seismic sensor includes a casing; a magnet located inside the casing; a coil assembly located inside the casing, wherein the coil assembly moves relative to the magnet; and a temperature-sensitive device connected to terminals of the coil assembly and configured to improve the damping. The magnet and the coil assembly produce some intrinsic damping and the additional damping introduced by the temperature-sensitive device is selected to counterbalance the temperature-dependent intrinsic damping so that a phase of a recorded seismic signal is compensated for temperature induced magnetic field changes.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 29, 2015
    Applicant: SERCEL, INC.
    Inventor: Marvin K. AMERINE
  • Patent number: 8939006
    Abstract: A photoacoustic detector wherein control circuits compensate for long term variations of components therein including a light source and sensing microphones. The control circuits intermittently energize the source to evaluate changes in at least source resistance. The control circuits intermittently energize an acoustic generator to evaluate changes in one or more generator responsive microphones.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: January 27, 2015
    Assignee: Honeywell International Inc.
    Inventors: Thomas M. Rezachek, Gary P. Shubinsky, Michael Freeman
  • Publication number: 20150000415
    Abstract: This application describes method and apparatus for detecting train separation, where one or more railway cars/carriages (401) accidentally decouple from the rest of the train. The method involves performing distributed acoustic sensing on at least one optical fibre (104a, 104b) to provide a plurality of longitudinal acoustic sensor portions along the railway (201). The acoustic response is analysed to detect a signature indicative of a train separation. This may involve detecting acoustic events (302, 303) associated with different parts of the train and detecting when the separation between the two events exceeds a threshold amount. The method may identify the front of the train and the rear of the train and detect when the distance between the front and rear changes by more than a threshold amount and/or sounds associated with wheelsets passing track features (402) may be used to determine the intervals (T3, T4) between wheelsets of adjacent cars and determine when the interval exceeds a threshold amount.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 1, 2015
    Applicant: Optasense Holdings Limited
    Inventor: John Kelley
  • Publication number: 20150000414
    Abstract: An object characteristics measurement apparatus of the invention includes a surface acoustic wave device. The surface acoustic wave device includes: an interdigitated electrode that is formed on a first surface on a piezoelectric substrate, excites an elastic wave, and receives reflection based on the elastic wave; a reflector that has a third surface and a fourth surface between the interdigitated electrode and a second surface orthogonal to the first surface in a propagation direction of the elastic wave; a reaction field that is formed between the interdigitated electrode and the reflector, in which the measured object is to be loaded; and a propagator that is formed between the reflector and the second surface.
    Type: Application
    Filed: December 14, 2012
    Publication date: January 1, 2015
    Inventors: Naoyuki Yoshimura, Hiromi Yatsuda
  • Publication number: 20150000413
    Abstract: An outer part for a device which is attachable thereto as a housing and/or an attachment part, a first reflective surface and a second reflective surface being formed on the outer part so that at least one signal emitted by an optical and/or acoustic source is directly or indirectly deflectable onto at least one detector surface of an optical and/or acoustic detector, an optical path being configured as a cavern or continuous recess in the outer part or as a depression of a boundary surface of the outer part, the optical path having at least one opening via which at least one substance is transferable into the optical path, and the at least one signal being deflectable into the optical path to the second reflective surface which is formed at a second end of the optical path with the first reflective surface at a first end of the optical path.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 1, 2015
    Applicant: Robert Bosch GmbH
    Inventors: Richard Fix, Andreas Krauss, Michael Badeja
  • Patent number: 8919202
    Abstract: A system including a plurality of sensing devices configured to generate acoustic emission (AE) signals that are representative of acoustic emission waves propagating through a plurality of stator vanes is presented. The system further includes a processing subsystem that is in an operational communication with the plurality of sensing devices, and the processing subsystem is configured to generate a dynamic threshold based upon an initial threshold and the AE signals, determine whether a plurality of signals of interest exist in the AE signals based upon the dynamic threshold, extract the plurality of signals of interest from the AE signals based upon the dynamic threshold, determine one or more features corresponding to the plurality of signals of interest, and analyze the one or more features to monitor and validate the health of the plurality of stator vanes.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: December 30, 2014
    Assignee: General Electric Company
    Inventors: Bhasker Rao Keely, Aninda Bhattacharya, Ravi Yoganatha Babu, Nilesh Tralshawala
  • Patent number: 8893550
    Abstract: A system provides an in situ or non-invasive vibro-acoustic (VA) analysis of an arbitrary complex vibrating structure. The noise diagnostic system includes a plurality of first transducers for measuring acoustic pressure in a sound field near a noise source. At least one second transducer measures normal surface velocity on the noise source. A computer acquires acoustic pressure data from the plurality of first transducers and normal surface velocity data from the at least one second transducer. The computer generates a transfer matrix representing a correlation between normal surface velocity on the noise source and the acoustic pressure in the sound field.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: November 25, 2014
    Assignee: Wayne State University
    Inventor: Sean F. Wu
  • Patent number: 8893551
    Abstract: A system in accordance with an embodiment of the present disclosure comprises at least two electrodes coupled to an electromagnetically sensitive bio-organism and control logic configured to predict an earthquake based upon signals produced by the electrodes in response to an electromagnetic signal.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: November 25, 2014
    Assignee: Bioelectrochemistry, LLC
    Inventor: Alexandre G. Volkov
  • Publication number: 20140331773
    Abstract: A vibration sensor includes a probe body with a vibration isolator operatively connected to the probe body for isolation of the probe body from vibrations of a structure to be monitored for vibration. A waveguide is operatively connected to the probe body to convey microwaves to and from a surface for sensing vibration of the structure to be monitored for vibration.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 13, 2014
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Peter L. Jalbert, Gary M. McBrien
  • Patent number: 8881592
    Abstract: The present invention relates to an ultrasound therapy system using high-intensity focused ultrasound. The present invention improves ultrasound and heat release characteristics and provides an ultrasound probe which easily performs manufacturing and maintenance processes. According to the present invention, a housing is recessed on the inward side around the upper-part edge. A plurality of mounting holes are uniformly formed from the outside at a constant radius to the edge in the center of the upper part. And a plurality of probe units are respectively installed to the plurality of mounting holes to form a sphere in the upper part of the housing wherein a first connection pin is protruded to the lower part of the housing in the lower part of a copper connection bar and a rear block, a piezoelectric wafer, and an acoustic matching layer are sequentially stacked on the upper part of the connection bar.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: November 11, 2014
    Assignee: Humanscan Co., Ltd.
    Inventors: Sung Min Rhim, Ho Jung, Do Kyeong Kim
  • Patent number: 8863577
    Abstract: An absorption target for measuring power of high-intensity focused ultrasound, comprising a container and a cone target cluster. The cone target cluster includes basic units with the same geometrical shape. The upper part of each basic unit is a pyramid, and the lower part of each basic unit is a prismatic base. The vertexes of respective side surfaces of the pyramid converge at a perpendicular bisector of the prismatic base to form a cone vertex and the cross sections of the pyramid and the base are squares, regular triangles or regular hexagons. The bases of the basic units are seamlessly and tightly arrayed at the bottom in the container. Sound waves of an incident cone target cluster to escape into space outside the cone target cluster only in case of at least two reflections or scatterings. Open micropores are densely distributed inside the basic units of the cone target cluster.
    Type: Grant
    Filed: January 30, 2011
    Date of Patent: October 21, 2014
    Assignee: Nanjing Haike Medical Equipment Co., Ltd.
    Inventors: Qiji Lai, Ninglei Lai, Guogan Xiong, Kefan Liu
  • Patent number: 8844361
    Abstract: An active ultrasonic room occupancy sensor with the output amplitude of the transmitter controlled by the amplitude of power applied to the transmitter to control the zone of coverage for a sensor. An adjustable voltage regulator under control of a microcontroller applies controlled amplitude voltage to the transmitter to adjust the output amplitude of the transmitter. The adjustable amplitude transmitter allows an occupancy sensor to have its total output energy adjusted to conform to the area to be covered. Lowering the total ultrasonic energy in the monitored space lowers the sensitivity of the receiver to inappropriate activations. Lowering the input power to the transmitter also lowers the total internal system noise and provides an improved signal to noise ratio in the receiver. Alternatively, the power applied to the receiver may also be controlled by an adjustable voltage regulator under control of the microcontroller to improve receiver efficiency.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: September 30, 2014
    Assignee: The Watt Stopper, Inc.
    Inventor: Jason Joyce
  • Publication number: 20140283613
    Abstract: An apparatus for inspecting an empty crate that is transported on a transport device includes an inspection device having a pulse generator, a processor, a sensor, and an uncoupling device. Prior to inspection, the uncoupling device uncouples the empty crate from the transport device. The pulse generator then excites vibrations in the empty crate, which the sensor receives and passes to a processor for analysis.
    Type: Application
    Filed: September 4, 2012
    Publication date: September 25, 2014
    Inventors: Jurgen Herrmann, Marius Michael Herrmann, Xiang Zhang
  • Publication number: 20140283614
    Abstract: Provided is a measuring apparatus capable of measuring a vibration amount weighted with characteristics of vibration transmission to a human ear and capable of evaluating correctly an electronic device having a vibrator. A measuring apparatus 10 configured to evaluate an electronic device 100 that transmits vibration sound to a human ear by pressing a vibrator 102 held in a housing 101 thereto, including an ear simulator 50 that mimics a human ear, and a vibration detection unit 55 disposed on a periphery 52 of an artificial ear canal 53 formed in the ear simulator 50.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 25, 2014
    Applicant: KYOCERA CORPORATION
    Inventors: Tomohiro Inagaki, Yoichi Hirata
  • Publication number: 20140260639
    Abstract: A vibration detector suitable for field use and associated systems and methods are disclosed. A representative apparatus includes a vibration sensor in contact with the vibrating structure. The vibration sensor can be in contact with the vibration isolators to eliminate the frequencies of the operator's hand. In some embodiments, a contact force between the vibration sensor and the vibrating structure can be measured using, for example, contact resistors. Since the sensitivity of the vibration sensor can be a function of the contact force, the vibration amplitude measurements can be adjusted for a known contact force to improve the precision of the vibration amplitude measurement.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: FLUKE CORPORATION
    Inventor: Paul Richer
  • Patent number: 8830116
    Abstract: A radar wave sensing apparatus including a rotation element, a nanosecond pulse near-field sensor and a control unit is provided. The nanosecond pulse near-field sensor emits an incident radar wave and receives a reflection radar wave of the incident radar wave hitting on a surface of the rotation element to obtain a repetition frequency variation of the reflection radar wave corresponding to the incident radar wave. The control unit calculates a vibration of the rotation element according to the repetition frequency variation.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: September 9, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Kuang-I Chang, Sheng-Hang Wang, Yu-Jen Su, Mu-Yu Tsai, Jyun-Long Chen
  • Patent number: 8820166
    Abstract: An apparatus for detecting defects in a railway rail mounted on a test vehicle. The apparatus includes a transducer assembly with one or more arrays of ultrasonic transducers directed toward the running surface of the rail. Beams transmitted by the one or more arrays of ultrasonic transducers may be dynamically adjusted to compensate for the varying profile of the rail head and running surface. A laser profiler mounted on the test vehicle in combination with a linear encoder provide profile data, which is communicated to a system controller to dynamically adjust the focal laws for the one or more arrays of transducers to steer the transmitted beams to produce the ideal inspection beam sets while the test vehicle is in motion.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: September 2, 2014
    Assignee: Herzog Services, Inc.
    Inventors: Jeffrey B. Wigh, Richard L. Ebersold, Troy L. Elbert, Timothy J. Coolman