Where Energy Is Transmitted Through A Test Substance Patents (Class 324/639)
  • Patent number: 10444056
    Abstract: The present disclosure relates to an apparatus and method for liquid level detection. The method may include providing a circuit board including a plurality of horizontally mounted emitter/receiver pairs arranged vertically along the circuit board within a liquid containment area. The method may further include determining, using one or more processors associated with the circuit board, if liquid is present between each of the plurality of emitter/receiver pairs based upon, at least in part, data received from one or more of the plurality of emitter/receiver pairs.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 15, 2019
    Assignee: Lat-Lon LLC
    Inventor: David Baker
  • Patent number: 10401464
    Abstract: A ferromagnetic resonance (FMR) measurement system is disclosed with a waveguide transmission line (WGTL) connected at both ends to a mounting plate having an opening through which the WGTL is suspended. While the WGTL bottom surface contacts a portion of magnetic film on a whole wafer, a plurality of microwave frequencies is sequentially transmitted through the WGTL. Simultaneously, a magnetic field is applied to the contacted region thereby causing a FMR condition in the magnetic film. After RF output is transmitted through or reflected from the WGTL to a RF detector and converted to a voltage signal, effective anisotropy field, linewidth, damping coefficient, and/or inhomogeneous broadening are determined based on magnetic field intensity, microwave frequency and voltage output. A plurality of measurements is performed by controllably moving the WGTL or wafer and repeating the simultaneous application of microwave frequencies and magnetic field at additional preprogrammed locations on the magnetic film.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: September 3, 2019
    Inventors: Santiago Serrano Guisan, Luc Thomas, Son Le, Guenole Jan
  • Patent number: 10386397
    Abstract: A digital receiver comprising at least two reception pathways, the method carries out a digital inter-correlation of the signals obtained as output from at least two filters of different central frequencies and different ranks, the rank and the central frequency of the filters being chosen as a function of a determined frequency-wise search domain. For a determined search domain, the various sampling frequencies of the reception pathways are chosen so that the ambiguous frequencies resulting from the spectral aliasings vary as a monotonic function of the true frequency of the signals.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: August 20, 2019
    Assignee: THALES
    Inventors: Pascal Cornic, Patrick Le Bihan, Joël Fillatre
  • Patent number: 10309911
    Abstract: A device and method for the radioscopic examination of a continuous strip-shaped material of rubber which runs continuously in particular. During the movement, the strip-shaped material is x-rayed by a radioscopic measurer and the entire cross-sectional surface is detected so that foreign bodies or defects present in the material are detected according to their position and orientation. An elimination device removes the previously identified foreign body during the feed movement of the material in that a tool, configured as a punching tool, of the elimination device is moved synchronously with the material.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: June 4, 2019
    Assignee: TROESTER GMBH & CO. KG
    Inventors: Kurt Schoppmann, Bernd Pielsticker
  • Patent number: 10309953
    Abstract: A filter retentate analysis system and method is disclosed, which provides information to diagnose the current and historical state of a system generating the retentate or through which the retentate has passed. The disclosure describes the analysis of retentate characteristics which may include the composition, amount, distribution, and physical or chemical properties of the retentate useful to monitor or diagnose the state, health, or operating history of a system or sub-system. The analysis is broadly applicable to wide range of systems and process ranging from engines and exhaust systems to production plants and equipment.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: June 4, 2019
    Inventors: Alexander Sappok, Leslie Bromberg, Paul Ragaller
  • Patent number: 10309910
    Abstract: A method of determining salinity of multi-phase fluids in a conduit includes exciting a sensing device to cause emission of electromagnetic waves of one or more frequencies into the multi-phase fluid. The method includes receiving transmitted or reflected electromagnetic waves from the multi-phase fluid. Furthermore, the method includes determining an intermediate parameter from the received electromagnetic waves. The method also includes obtaining estimated values of a plurality of parameters from the intermediate parameter. The estimated values comprise at least one of an estimated value of conductance, an estimated value of susceptance, an estimated value of differential conductance, an estimated value of differential susceptance, an estimated value of a real part of complex permittivity, and an estimated value of an imaginary part of complex permittivity. Salinity of the fluid is determined based, at least in part, on the estimated values of the plurality of parameters.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: June 4, 2019
    Assignee: General Electric Company
    Inventors: Prafull Sharma, Aparna Chakrapani Sheila-Vadde
  • Patent number: 10288661
    Abstract: A method for testing the transmission and reflection properties of an automotive radome body is described. An automotive radome body is placed at an installation location. A first signal is sent via at least one transmission antenna of an antenna system facing a first side of the radome body wherein the reflected part of the first signal is received by several receiving antennas of the antenna system facing the first side in order to determine the reflection properties of the radome body. A second signal is sent via a remote transmission antenna facing a second side of the radome body being opposite to the first side wherein the transmitted part of the second signal is received by the several receiving antennas of the antenna system in order to determine the transmission properties of the radome body. Further, an apparatus is described.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: May 14, 2019
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Sherif Ahmed, Tobias Koeppel
  • Patent number: 10271388
    Abstract: A microwave heating apparatus and a method of heating a load using microwaves is disclosed. The microwave heating apparatus comprises a cavity arranged to receive a load, a plurality of feeding ports for feeding microwaves from a plurality of microwave generators to the cavity, and a control unit. The control unit is configured to obtain a desired temperature pattern within the cavity based on information about a plurality of regions of the load. The control unit is also configured to determine a heating pattern comprising zones of different intensities corresponding to the desired temperature pattern, and control at least one of the plurality of microwave generators for providing the heating pattern within the cavity. The apparatus and method may provide heating of a load according to different desired temperatures in various parts of the load.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: April 23, 2019
    Assignee: Whirlpool Corporation
    Inventors: Fredrik Hallgren, Davide Parachini, Gianpiero Santacatterina, Daniele Devito
  • Patent number: 10191177
    Abstract: An apparatus comprising at least one first signal loop configured to receive a first signal; at least one second signal loop magnetically coupled with the first signal loop configured to generate a second signal; a signal processor configured to monitor the second signal and determine the presence of at least one metal object dependent on the second signal.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: January 29, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Jean-Baptiste Greuet, Cieslak Lars, Koray Ozcan
  • Patent number: 9970748
    Abstract: A tire tread depth measurement system includes a scanner and smart phone that fit into the palm of a user either directly or attached to a glove. The technician obtains tread depth data by moving her hand holding the scanner over a tire profile. The scanner communicates with a nearby control box that uploads the data to a server for determination of tread depth, tire wear pattern and wheel alignment. The tire tread analysis is downloaded to the control box and reported to the technician via the smart phone. The smart phone is programmed to identify the vehicle and related information about it based on the license plate or vehicle identification number by interpreting the license number or VIN and interrogating various data bases via the internet. Wear and analysis results are forwarded for printing the entire report.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: May 15, 2018
    Assignee: Tire Profiles LLC
    Inventors: David Boyle, Roger H. Tracy
  • Patent number: 9934180
    Abstract: The present invention discloses a system and a method for communication and control between incompatible devices that operate in accordance with different protocols without hardware modification and without requirement of a dedicated hardware.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 3, 2018
    Inventors: Quan Gan, Jiali Xu, Jun Dong
  • Patent number: 9891092
    Abstract: A method for determining the fill level of a medium (2) in a container (3) that is advantageous as compared to the prior art is achieved in that several emitting devices (6) are supplied with electromagnetic signals and that an emitting behavior of at least a portion of the emitting devices (6) is evaluated in view of the fill level of the medium (2).
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: February 13, 2018
    Assignee: KROHNE Messtechnik GmbH
    Inventors: Christoph Baer, Thomas Musch, Michael Deilmann, Attila Bilgic, Stephan Neuburger
  • Patent number: 9856731
    Abstract: A wellhead test system comprising: i) a Coriolis mass flow meter configured to receive a flow of a liquid; ii) a water analyzer configured to receive the flow of the liquid; and iii) a controller coupled to the Coriolis mass flow meter and the water analyzer. The controller receives from the Coriolis mass flow meter at least one of: mass flow measurement data, mass density measurement data, and drive gain and also receives from the water analyzer at least one of water frequency measurement data, oil frequency measurement data, and insertion loss measurement data. The controller determines a gas volume fraction (GVF) value and modifies the operation of the Coriolis mass flow meter and the water analyzer based on the GVF value.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: January 2, 2018
    Assignee: Phase Dynamics, Inc.
    Inventor: Bentley N. Scott
  • Patent number: 9851236
    Abstract: A device for determining the fill level of a medium in a container having at least one electronic device and at least one signal conductor arrangement. The electronic device supplies the signal conductor arrangement 5 with electromagnetic signals. To provide a device for determining the fill level, the signal conductor arrangement has several emitting devices and the electronic device provides at least one measure for an emitting behavior of at least one emitting device.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: December 26, 2017
    Assignee: KROHNE Messtechnik GmbH
    Inventors: Christoph Baer, Thomas Musch, Michael Deilmann, Attila Bilgic, Stephan Neuburger
  • Patent number: 9792750
    Abstract: There is described a method for checking a value document of a specified type for the suspected presence of a forgery, in particular of a pieced-together forgery, wherein at least one ultrasonic property of the value document is captured in a spatially resolved manner so as to form location-dependent measuring data, wherein while employing the location-dependent measuring data it is checked whether there are present in a specified checking region of the value document two areal regions whose ultrasonic properties deviate from each other according to a specified difference criterion, and wherein there is formed an authenticity signal which represents the result of the check. Further, a corresponding checking device is described.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: October 17, 2017
    Inventors: Jan Domke, Ingo Scholz
  • Patent number: 9719964
    Abstract: A system, method, and apparatus for detecting at least one condition of interest relating to a tube, e.g. the presence of an air bubble. In some embodiments, the sensor includes antennas, a split-ring resonator, a frequency generator capable of generating frequencies in the microwave range, and a detection component. The detection component may estimate at least one parameter of received microwave energy in order to determine if a condition of interest exists.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: August 1, 2017
    Assignee: DEKA Products Limited Partnership
    Inventor: David Blumberg, Jr.
  • Patent number: 9638127
    Abstract: A method for verifying the validity of an output of a particulate matter sensor mounted in an engine exhaust system downstream of a diesel particulate filter, the particulate matter sensor including a pair of electrodes spaced apart from each other, includes initiating regeneration of the diesel particulate filter, applying and maintaining a higher than nominal voltage across the electrodes following the step of initiating regeneration of the diesel particulate filter, and measuring an electrical parameter across the electrodes while the higher voltage is applied across the electrodes, where the electrical parameter is indicative of an amount of soot accumulated on the sensor. The reading of accumulated soot is evaluated to determine whether the sensor is indicating that the amount of accumulated soot is within an expected range based on a clean diesel particulate filter and the elevated applied voltage.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: May 2, 2017
    Assignee: Delphi Technologies, Inc.
    Inventors: Lary R. Hocken, Robert J. A. Van Der Poel
  • Patent number: 9600952
    Abstract: A method for checking a value document of a specified value-document type has a window which has a foil region. The measurement values for an ultrasound transmission of the value document are established in a spatially resolved manner, and it is checked while employing the measurement values whether for a specified number of locations in a specified checking region the ultrasound transmission according to a specified criterion is greater than a specified minimum ultrasound transmission that is characteristic of a specified portion, lying outside the checking region, of at least one value document of the specified value-document type.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: March 21, 2017
    Inventors: Jan Domke, Ingo Scholz
  • Patent number: 9588071
    Abstract: A multiphase meter system including: transmitting and receiving antennas in the flow pipe, wherein the receiving antennas are at different distances from the transmitting antenna, and a control system configured to: apply an electromagnetic field to the transmitting antenna and receive signals from the receiving antenna induced in the fluid or the pipe by the transmission of the electromagnetic field; calculate a resonance quality of the signals received by at least one of the first and second receiver antennas; calculate composition or salinity of the fluid based on the resonance quality if the resonance quality is greater than a threshold value, and calculate composition or salinity of the fluid based on a transmission time difference of the signals received from the first receiver antenna and the signals received by the second receiver antenna if the resonance quality is below the threshold value.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: March 7, 2017
    Inventor: Ebbe Gustaf Nyfors
  • Patent number: 9575045
    Abstract: In some aspects, the disclosure is directed to signal processing methods and systems for identifying a material on a body of a person using electromagnetic radiation. A radar system may measure a first reflection of radiation incident on a body of a person. The first reflection may be from a surface of the body. The radar system may measure a second reflection of the radiation. The second reflection may be from a first material residing on or proximate to the surface of the body. An analyzer may determine, relative to the first reflection, a delay in the second reflection due to propagation of a portion of the radiation through the first material. The analyzer may determine, based on the delay, at least one of: the first material and a dielectric constant of the first material.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: February 21, 2017
    Assignee: Northeastern University
    Inventors: Carey Rappaport, Jose Angel Martinez-Lorenzo
  • Patent number: 9547066
    Abstract: An antenna system including at least one antenna connected to a captured signal processing receiver, an antenna protection radome; and a plurality of electro-optical probes distributed on or inside of the radome.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: January 17, 2017
    Assignee: Commissariat à l'Energie Atomique et aux Energies Alternatives
    Inventors: Serge Bories, Lama Ghattas, Dominique Picard
  • Patent number: 9476843
    Abstract: A device for measuring at least one of dielectric and magnetic properties of a sample by means of a microwave transmission measurement includes a transmitting antenna and a receiving antenna defining a transmission measuring section in which the sample to be measured is located, and transmitting and receiving modules. The transmitting and receiving modules include one or more transmission-side and receiving side synthesizers, a clock, one or more transmission side or receiving side mixers to generate intermediate-frequency signals based on high-frequency signals received from the synthesizers, and at least one evaluation unit to perform an evaluation based on the intermediate-frequency signals.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: October 25, 2016
    Inventor: Elisabeth Katz
  • Patent number: 9404952
    Abstract: A product is provided into a first end of a conduit so that the product flows toward a second end of the conduit. The conduit may include a first pair of probes attached at a first location and a second pair of probes at a second location. The product's conductivity in the conduit at the first location is monitored using the first set of probes, and the product's conductivity at the second location is monitored using the second set of probes. An marker material is introduced into an entry port of the conduit so that the marker material flows with the product. The marker material's conductivity is different than the product's conductivity. At a first time, the first set of probes detects the conductivity of the product has changed due to the introduction of the marker material, and at a second time, the second set of probes also detects such change.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: August 2, 2016
    Assignee: Aseptia, Inc.
    Inventors: Michael Druga, John Alan Duff, Josip Simunovic
  • Patent number: 9383737
    Abstract: An energy management system within a building obtains energy usage data over several cycles to determine a minimum feasible load. The minimum feasible load corresponds to operational conditions of the building, such as occupied or unoccupied. The energy usage data is binned according to the operational condition under which it was obtained. A threshold based on the minimum feasible load is used to monitor energy usage within the building and to identify anomalies in energy demand for possible action.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: July 5, 2016
    Assignee: TRANE U.S. INC.
    Inventors: Alberto Fonts Zaragoza, Frank Carl Altamura, Jr., Mohan Ram Dattatreya, Himanshu Monty Joshi
  • Patent number: 9178258
    Abstract: A radar system in an autonomous vehicle may be operated in various modes and with various configurations. The autonomous vehicle features a radar system having a waveguide with a first waveguide section, a second waveguide section, and a seam between the first and the second waveguide sections. The first waveguide section and the second waveguide section form a waveguide cavity. Additionally, the seam corresponds to a low surface current location of a propagation mode of the waveguide and is formed where the first waveguide section is coupled to the second waveguide section. The height of the first waveguide section may be equal to the height of the second waveguide section. The waveguide also may include a feed configured to introduce a wave with the propagation mode into the waveguide. Moreover, the waveguide may also include more than one cavity. Each cavity may lie on a plane defined by the seam.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: November 3, 2015
    Assignee: Google Inc.
    Inventor: Adam Brown
  • Patent number: 9111334
    Abstract: Microwave imaging apparatus and method for completely imaging the human body (or portions thereof) in sufficient detail to render a timely and accurate medical diagnosis by trained medical professionals. The data conversion processes presented will not require physicians and radiologists to learn to use image data in a format they are not familiar with. Hounsfield encoded and/or MRI intensity encoded medical images in the DICOM format are provided from reconstructed dielectric images obtained from raw scattering data. This allows for the exchange of information created from microwave imaging techniques to be implemented with existing diagnostic tools and analysis techniques. Furthermore, methods are presented for converting image data with Hounsfield encoded units to an image with dielectric encoded units.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: August 18, 2015
    Assignee: ELLUMEN, INC.
    Inventors: Todd R. McCollough, William J. McCollough
  • Patent number: 9091627
    Abstract: The subject matter described herein includes methods, systems, and computer program products for measuring the density of a material. According to one aspect, a material property gauge includes a nuclear density gauge for measuring the density of a material. A radiation source adapted to emit radiation into a material and a radiation detector operable to produce a signal representing the detected radiation. A first material property calculation function may calculate a value associated with the density of the material based upon the signal produced by the radiation detector. The material property gauge includes an electromagnetic moisture property gauge that determines a moisture property of the material. An electromagnetic field generator may generate an electromagnetic field where the electromagnetic field sweeps through one or more frequencies and penetrates into the material.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: July 28, 2015
    Assignee: Troxler Electronic Laboratories, Inc.
    Inventors: Robert Ernest Troxler, Wewage Hiran Linus Dep
  • Patent number: 9091716
    Abstract: A method and an apparatus for measuring performance of an electronic device are provided. The apparatus includes an electromagnetic wave measuring device for measuring an actual level of an electromagnetic wave of an electronic device, and an analysis controller for applying a previously stored level change value to the actual level of the electromagnetic wave to compute a measured level of the electromagnetic wave. The method and the apparatus for measuring performance of an electronic device can easily measure an electromagnetic wave level of the electronic device without using a device suggested by an international standard.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: July 28, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jungmin Kim, Keonyoung Seo, Kwangmo Yang, Byeonghwan Kang, Bonghee Park
  • Patent number: 9080952
    Abstract: Disclosed is a method and a phased array inspection device enabling calibration of the device with an optimized pulse rate, the pulse rate is derived based on the true adaptive value of the impedance of the specific phased array probe circuit or the pulser circuit and the circuit energy consumption limitations. The energy consumption limitations include the total energy made available by the power supply to the pulser and probe circuit and the pulser energy consumption with limitation due to pulser circuit's physical limit such as thermal limitation.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: July 14, 2015
    Inventors: Christian Simard, Denys Laquerre
  • Patent number: 9078450
    Abstract: A cylindrical waveguide (1) for analyzing a flowing material (18) using guided microwave spectroscopy (GMS). Spaced apart plates (2, 5) each define a plane within the waveguide housing (3) that is parallel to the direction (47) of material flow through the waveguide. Two opposed frames (7, 19) each surround an aperture (6) that permits access to the region between the waveguide plates (2, 5). A microwave probe assembly (81) is mounted at each frame (7, 19) to permit the radiation and reception of electromagnetic waves within the housing (1). A temperature probe (51) is inserted into the interior of the housing (1) via fitting (13). A y-shaped assembly (89) can be used to divide the flow into two separate paths including a diverter vane (93) that permits flow to be equalized within the two separate flow paths.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: July 14, 2015
    Assignee: THERMO RAMSEY INC.
    Inventors: Darrel Thomas Butler, Tom Lee Erb
  • Patent number: 9041415
    Abstract: Provided is a waveguide for guiding an electromagnetic wave between a first conductor layer and a second conductor layer each having a negative dielectric constant real part for the electromagnetic wave, the waveguide including a tapered structure in a part of the waveguide at which the electromagnetic wave exits or enters, in which a spatial profile of the tapered structure perpendicular to an optical axis extends to both sides with respect to the optical axis at least in one direction orthogonal to the optical axis as being closer to an opening plane at an outermost part of the tapered structure.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: May 26, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasushi Koyama
  • Patent number: 9035661
    Abstract: A flow-through conductivity sensor assembly comprises a housing (4) having a flow passage with an inlet end and an outlet end. The cross section of at least a section of the flow passage extension between the inlet and outlet ends is divided into a conductivity measuring channel (2) and a parallel by-pass channel (3) of larger cross-sectional area than the measuring channel (2).
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: May 19, 2015
    Assignee: GE Healthcare Bio-Sciences AB
    Inventors: Lars Andersson, Stefan D'Argy, Patric Fricking, Joachim Tollstoy
  • Publication number: 20150091585
    Abstract: A device for measuring the dielectric and/or magnetic properties of a sample by means of a microwave transmission measurement, comprising a transmitting antenna and a receiving antenna that define a transmission measuring section in which the sample to be measured can be positioned, at least one transmission-side synthesizer for generating a high-frequency signal with a frequency between 800 MHz and 30 GHz, a frequency standard that is connected via a transmission-side low-frequency synchronization signal line to the transmission-side synthesizer and to which the transmission-side synthesizer is coupled phase-locked reproducible, as well as an evaluation unit which is connected at least indirectly to the transmission-side synthesizer and the receiving antenna.
    Type: Application
    Filed: May 16, 2013
    Publication date: April 2, 2015
    Inventor: Elisabeth KATZ
  • Patent number: 8994391
    Abstract: Various embodiments for detecting a high Intensity radiated field (HIRF) in a line replaceable unit are provided. In an embodiment, the internal detector comprises a receiving means for receiving HIRF and generating an AC signal proportional to the HIRF, an RF filter configured to sample the AC signal to create a DC signal; and a detecting section configured to compare the DC signal with a threshold and output a result of the comparison to a built-in test section. The internal detector may be used to test EMI filter pin connectors of a closed line replaceable unit.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: March 31, 2015
    Assignee: BAE Systems Controls Inc.
    Inventors: Paul Hart Heiland, Jr., Richard P. Quinlivan, Thomas Edward Guth, Zain Adam Horning, Peter Joseph Watson, Gustavo Enrique Melendez Velazquez
  • Publication number: 20150084645
    Abstract: An inspection apparatus of an embodiment includes a transmitting antenna device connected to a transmitting unit including a transmitting device configured to transmit a microwave, and a receiving antenna device connected to a receiving unit including a receiving device. Each of the transmitting antenna device and the receiving antenna device faces a subject to be inspected. The receiving antenna device receives at least one of a microwave transmitted from the transmitting antenna device and penetrating the subject to be inspected, a microwave of which phase has been delayed, and a microwave diffracted in the subject to be inspected. The receiving unit is a directional antenna.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 26, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki KAYANO, Toshiro HIRAOKA
  • Patent number: 8912805
    Abstract: Device for processing and measuring properties of a moving rod of material of the tobacco processing industry includes a microwave resonator structured and arranged so that the rod of material is conveyable through the microwave resonator. Includes microwave generator with output frequency f0, and frequency stabilized oscillator to generate intermediate frequency fIM that is less than f0. Single sideband modulator supplies microwave resonator with a sideband signal having a sideband frequency shifted with respect to output frequency f0 by intermediate frequency fIM, and at least one analysis arrangement includes single sideband demodulator, low-pass filter, and analog to digital converter arranged in series. Single sideband demodulator receives a measurement signal of the sideband frequency transmitted or reflected from the microwave resonator, and receives output frequency f0.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: December 16, 2014
    Assignee: Hauni Maschinenbau AG
    Inventor: Dierk Schroeder
  • Publication number: 20140347074
    Abstract: A method to detect a gas absorption line that includes alternately transmitting and sweeping two radio frequency (RF) signals through an absorption cell, wherein the two RF signals are transmitted at different frequencies separated by a range and are swept across a span of frequencies in a microwave and millimeter wave regions of a frequency spectrum. Receiving the RF signals by a receiver and analyzing the received signals by a closed loop system for relative absorption by a gas due to an absorption line of the gas in the span of the swept frequencies. Detecting the absorption line of the gas when the two RF signals straddle the gas absorption line and the relative absorption by the two RF signals is equal.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Inventor: Phillip Michel NADEAU
  • Patent number: 8736281
    Abstract: A sensing system comprises a material having a matrix structure in which a plurality of sensing elements are embedded, the sensing elements having electron distribution and/or transport properties that change in response to a change in a physical or chemical property of the material. The sensing system further comprises a receiver, including an antenna, the receiver arranged to receive a source RF signal and a returned RF signal, the returned RF signal being received from the material. A change in the electron distribution and/or transport properties of the sensing elements cause the source RF signal to change, such that a change in a property of the material can be determined from the returned RF signal. A corresponding method of sensing a change in a property of a material is also provided.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: May 27, 2014
    Inventors: Christopher R. Lowe, Quentin Tannock, Adrian Stevenson, Karishma Jain
  • Patent number: 8717045
    Abstract: A microorganism number-measuring apparatus includes: measurement container including measurement liquid; rotary driver; bacteria-collection signal generator; measurement signal generator; output amplifier for amplifying outputs of signal generators and; I/V amplifier; impedance measuring unit for measuring impedance of liquid; microorganism number-computing unit for computing the number of microorganisms present in liquid; solution conductivity-computing unit for computing conductivity of liquid; and warm-up section for warming up at least one of I/V amplifier and output amplifier. Warm-up section computes a warm-up signal based on the conductivity computed by conductivity-computing unit. Warm-up section computes the warm-up signal having a current the same in magnitude as that flowing through measurement electrode by using the measured solution conductivity, and applies the signal to at least one of I/V amplifier and output amplifier.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: May 6, 2014
    Assignee: Panasonic Healthcare Co., Ltd.
    Inventor: Hidenori Morita
  • Patent number: 8655284
    Abstract: Embodiments include systems and methods for over-the-air testing of wireless systems. Embodiments comprise separated chambers containing wireless devices. The chambers are connected by propagation path corridors.
    Type: Grant
    Filed: May 8, 2011
    Date of Patent: February 18, 2014
    Assignee: ETS-Lindgren, LP
    Inventor: Michael Foegelle
  • Patent number: 8629681
    Abstract: A microwave sensor and algorithm for instantaneous and nondestructive determination of bulk density and moisture content in granular or particulate materials at a single microwave frequency, especially agricultural commodities, which uses an inexpensive microwave circuit for determining the real and imaginary parts of relative complex permittivity using an algorithm for phase correction.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: January 14, 2014
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Samir Trabelsi, Stuart O. Nelson
  • Patent number: 8624605
    Abstract: The present invention exploits extreme sensitivity to initial conditions in ray-chaotic enclosures to create a method to distinguish nominally identical objects through their unique “wave fingerprints.” The fingerprint can be measured through transmission of a pulsed microwave signal as a function of carrier frequency and time. When internal components are re-arranged, the Electromagnetic Fingerprints (EMF) changes in significant ways. The EMF can be detected by direct injection measurements of the enclosure or through remote measurement.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: January 7, 2014
    Assignee: University of Maryland, College Park
    Inventors: Sameer Hemmady, Steven M. Anlage
  • Patent number: 8614586
    Abstract: The moisture measuring method and apparatus determines the moisture content of post-harvest in-shell peanuts. A crystal oscillator generates a high frequency signal that is directed through a selected sample of in-shell peanuts. Capacitance, impedance, and phase change data associated with the sample are generated at (at least) two frequencies. The data is then substituted into a semi-empirical equation to determine the moisture content of the in-shell peanuts.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: December 24, 2013
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Chari Kandala
  • Patent number: 8552750
    Abstract: A sensor, a system of direct measurement using that sensor, and a method of direct and simultaneous measurement of conductivity and dielectric constant of a fluid, particularly high impedance, hydrocarbon-based fluids. The sensor has a cell that holds the fluids to be measured between a single pair of coaxial, bare metal electrodes connected through interface circuitry to measurement circuitry preferably implemented in one or several IC's. The sensor has a mutually compatible electrode geometry that provides both the correct cell constant for measurement of conductivity of hydrocarbons fluids (typical range 0-100,000 pS/cm), and a bulk capacitance (for use in dielectric constant measurement) in the range of measure of readily available low cost commercial IC's (having a typical capacitance measurement span of <10 pF, with a total bulk capacitance at the chip of <20 pF).
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: October 8, 2013
    Assignee: D-2, Inc.
    Inventor: Alan J. Fougere
  • Patent number: 8525705
    Abstract: A solid rocket motor having a liner surrounding a propellant includes an array of transmitter elements and receiver elements disposed within the liner. Transmitter electronics provide the transmitter elements with a transmit signal and receiver electronics receive the outputs of the receiver elements. The outputs are analyzed to determine any defects in the propellant.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: September 3, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventor: Craig Michael Lopatin
  • Patent number: 8519724
    Abstract: A plate of substantially uniform thickness is formed from an electrically conductive material. The plate has a top surface defined to support a part to be measured. The plate has a bottom surface defined to be connected to a radiofrequency (RF) transmission rod such that RF power can be transmitted through the RF transmission rod to the plate. The plate is defined to have a number of holes cut vertically through the plate at a corresponding number of locations that underlie embedded conductive material items in the part to be measured when the part is positioned on the top surface of the plate.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: August 27, 2013
    Assignee: Lam Research Corporation
    Inventors: Jaehyun Kim, Arthur H. Sato, Keith Comendant, Qing Liu, Feiyang Wu
  • Publication number: 20130147493
    Abstract: A system for determining a concentration of gas in a confined space includes a first frequency generator for generating a first RF signal. A first antenna transmits the first RF signal across the confined space and second antenna receives the first RF signal. First and second RF signal power detectors detect the power of the first RF signal both prior to and after transmission through the confined space. A first comparator circuit determines a concentration of oxygen in the confined space based on the power of the first RF signal prior to transmission through the confined space and the power of the first RF signal received by the second antenna.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 13, 2013
    Inventor: John A. Marchetti
  • Patent number: 8461851
    Abstract: A slotted TEM transmission line and an in-situ TEM transmission line are utilized to determine both complex permittivity and permeability of soil. The permittivity and permeability information may be used by underground sensing techniques such as GPR and EMI to enhance information from these techniques. The in-situ probe provides that both complex permittivity and permeability can be measured simultaneously over a broad frequency range without disturbing the soil conditions.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: June 11, 2013
    Assignee: University of Hawaii
    Inventors: Magdy F. Iskander, Hyoungsun Youn, Charles Amazeen, Brian Burns
  • Publication number: 20130127478
    Abstract: A system and method for determining loading of a filter having a first dielectric constant with a material having a different dielectric constant, is disclosed. The filter is contained within a metallic container forming a microwave cavity, and microwave or RF energy is created within the cavity and changes in the cavity microwave response are monitored. The changes in cavity microwave response are related to filter loading. In a preferred embodiment, the microwave energy includes multiple cavity modes thereby allowing determination of spatial distribution of the contaminant material loading. In one embodiment, the microwave cavity response includes a shift in frequency of a resonant mode. Alternatively, the microwave cavity response includes a shift in quality factor Q of a resonant mode. The microwave cavity response may include a shift in amplitude or peak width of the microwave's signal at resonance.
    Type: Application
    Filed: January 17, 2013
    Publication date: May 23, 2013
    Inventor: Filter Sensing Technologies, Inc.
  • Patent number: 8427176
    Abstract: At least one embodiment is directed to a sensor for measuring a parameter. A signal path of the system comprises an amplifier (612), a sensor element, and an amplifier (620). The sensor element comprises a transducer (4), a waveguide (5), and a transducer (30). A parameter such as force or pressure applied to the sensor element can change the length of waveguide (5). A pulsed energy wave is emitted by the transducer (4) into the waveguide (5) at a first location. The transducer (30) is responsive pulsed energy waves at a second location of the waveguide (5). The transit time of each pulsed energy wave is measured. The transit time corresponds to the pressure or force applied to the sensor element.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: April 23, 2013
    Assignee: Orthosensor Inc
    Inventor: Marc Stein