公开(公告)号：US20190226911A1

公开(公告)日：2019-07-25

申请号：US16277705

申请日：2019-02-15

申请人： ITI Scotland - Scottish Enterprise

发明人： Graeme Malcolm ,  Gordon Robertson

IPC分类号： G01J3/10 ,  H01S3/16 ,  H01S3/117 ,  G01N21/359 ,  G01J3/42 ,  G01N21/3504 ,  H01S3/108 ,  H01S3/094 ,  H01S3/081 ,  G01N21/47 ,  G01N21/49

CPC分类号： G01J3/108 ,  G01J3/42 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/4738 ,  G01N21/49 ,  G01N2021/4769 ,  G01N2201/06113 ,  G01V8/005 ,  H01S3/081 ,  H01S3/082 ,  H01S3/094 ,  H01S3/1083 ,  H01S3/11 ,  H01S3/117 ,  H01S3/161 ,  H01S3/163 ,  H01S3/1643

摘要： An infrared detection system comprises the following elements. A laser source provides radiation for illuminating a target (5). This radiation is tuned to at least one wavelength in the fingerprint region of the infrared spectrum. A detector (32) detects radiation backscattered from the target (5). An analyser determines from at least the presence or absence of detected signal in said at least one wavelength whether a predetermined volatile compound is present. An associated detection method is also provided. In embodiments, the laser source is tunable over a plurality of wavelengths, and the detector comprises a hyperspectral imaging system. The laser source may be an optical parametric device has a laser gain medium for generating a pump beam in a pump laser cavity, a pump laser source and a nonlinear medium comprising a ZnGeP2 (ZGP) crystal. On stimulation by the pump beam, the ZnGeP2 (ZGP) crystal is adapted to generate a signal beam having a wavelength in a fingerprint region of the spectrum and an idler beam having a wavelength in the mid-infrared region of the spectrum. The laser gain medium and the ZnGeP2 (ZGP) crystal are located in the pump wave cavity.

公开(公告)号：US20190187327A1

公开(公告)日：2019-06-20

申请号：US16326305

申请日：2016-12-15

申请人： CHINA COMMUNICATION TECHNOLOGY CO., LTD. ,  SHENZHEN VICTOOTH TERAHERTZ TECHNOLOGY CO., LTD.

发明人： Shukai ZHAO ,  Chunchao QI ,  Zhihui FENG ,  Hanjiang CHEN

IPC分类号： G01V8/00 ,  G01S13/89

CPC分类号： G01V8/005 ,  G01S13/89 ,  G01V3/12

摘要： A disclosed system includes a support frame including a plurality of surfaces, a millimeter-wave transmission link that generates a millimeter-wave transmission signal, a plurality of millimeter-wave array antennas, a millimeter-wave reception link, and an image processing device. The millimeter-wave array antennas are disposed on different surfaces of the support frame, and transmit millimeter-wave transmission signals from different angles to a to-be-detected object and receive echo signals reflected from the to-be-detected object. By providing the millimeter-wave array antennas on each of the plurality of surfaces of the support frame, and transmitting millimeter-wave transmission signals from different angles to a to-be-detected object and receiving echo signals reflected from different angles of the to-be-detected object, a three-dimensional image of the to-be-detected object can be established, thereby achieving omni-directional detection of the to-be-detected object. The system can detect human and objects at the same time, and is convenient, quick and highly accurate.

公开(公告)号：US20190094411A1

公开(公告)日：2019-03-28

申请号：US16081695

申请日：2017-03-02

申请人： QINETIQ LIMITED

发明人： Rupert Nicholas Anderton ,  Richard George Humphreys

IPC分类号： G01V8/18 ,  G01V8/00 ,  G02B26/10

CPC分类号： G01V8/18 ,  G01V8/005 ,  G02B26/108

摘要： The present invention discloses a detection device for discriminating between different materials, and a method for doing so. The device comprises an optical system having at least one optical focussing element and a receiving element. The receiving element is sensitive to electromagnetic radiation, typically in the millimetre wave band, and the optical system being arranged to focus incident energy from a scene onto the receiving element. The optical system comprises a prism element having a first surface and a second surface, the first surface being opposite the second surface. At least a portion of the first surface is positioned at an angle θ to the second surface. The angle θ varies between a minimum at a first position on the first surface and a maximum at a second position on the first surface.

公开(公告)号：US20180196134A1

公开(公告)日：2018-07-12

申请号：US15864103

申请日：2018-01-08

申请人： OZ Optics Ltd.

发明人： Safieddin Safavi-Naeini ,  Shahed Shahir

IPC分类号： G01S13/88

CPC分类号： G01S13/887 ,  G01S13/38 ,  G01S13/90 ,  G01S2013/0245 ,  G01S2013/0263 ,  G01V8/005

摘要： The present invention presents a flexible, stepped frequency, radar based, imaging inspection system. The imaging inspection system can be used in airports, seaport sites, borders, postal processing centres, and sensitive sites. It comprises a millimetre-wave Stepped Frequency Continuous Wave (SFCW) radar module (2) connected to a transmitting channel and a receiving channel. The transmitting channel may comprise a frequency upconvertor (8) and the receiving channel may comprise a frequency downconvertor (10). A digital signal processing unit (14) reconstructs a conductivity profile and a permittivity profile of an object under test (OUT) from measurement data collected via a phase-array antenna or a translational stage (18) based on synthetic aperture focusing (SAF).

公开(公告)号：US09983331B2

公开(公告)日：2018-05-29

申请号：US15128338

申请日：2015-10-14

申请人： Halliburton Energy Services, Inc.

发明人： Wolfgang Hartmut Nitsche ,  John L. Maida

IPC分类号： G02B6/26 ,  G01V8/00 ,  G01V8/02 ,  G02B6/38 ,  E21B47/12

CPC分类号： G01V8/005 ,  E21B47/123 ,  G01V8/02 ,  G02B6/262 ,  G02B6/3801 ,  G02F1/35 ,  G02F1/37

摘要： A quasi-optical waveguide apparatus includes a waveguide having a chamber formed by a substantially cylindrical body and configured to propagate terahertz radiation. A plurality of windows are included wherein each window is coupled to a respective end of the waveguide such that the chamber is substantially sealed from the ambient atmosphere. The plurality of windows are transparent to the terahertz radiation.

公开(公告)号：US09922289B2

公开(公告)日：2018-03-20

申请号：US14870663

申请日：2015-09-30

申请人： International Business Machines Corporation

发明人： Baleegh Abdo

IPC分类号： H03K3/38 ,  G06N99/00 ,  G01V8/00 ,  H01P7/08 ,  G01R23/02 ,  H01P1/203

CPC分类号： G06N99/002 ,  G01R23/02 ,  G01V8/005 ,  H01P1/20381 ,  H01P7/082

摘要： A technique relates to a microwave device. A pump resonator, at a first pump resonator end, is connected to both a dispersive nonlinear element and a first stub. The pump resonator, at a second pump resonator end, is capacitively coupled to a pump port, where the first stub is terminated in an open circuit. A quantum signal resonator, at a first quantum signal resonator end, is connected to both the dispersive nonlinear element and a second stub. The quantum signal resonator, at a second signal resonator end, is capacitively coupled to a signal port, where the second stub is connected to ground.

公开(公告)号：US09891314B2

公开(公告)日：2018-02-13

申请号：US14639956

申请日：2015-03-05

申请人： Rapiscan Systems, Inc.

发明人： Edward James Morton ,  Anthony J. Peyton

IPC分类号： G01S13/88 ,  G01R27/00 ,  G01V8/00 ,  G01S13/02 ,  G01S13/87

CPC分类号： G01S13/887 ,  G01S13/0209 ,  G01S13/87 ,  G01V8/005

摘要： An ultra-wide band microwave based personnel/passenger screening system, and in particular, a system for material specific detection, uses non-ionizing radiation in which focused beams of low intensity microwave radiation are projected in rapid succession at an individual as they walk through a portal.

公开(公告)号：US20170329033A1

公开(公告)日：2017-11-16

申请号：US15596345

申请日：2017-05-16

申请人： Andrey KUZNETSOV ,  Valery AVERYANOV ,  Igor GORSHKOV

发明人： Andrey KUZNETSOV ,  Valery AVERYANOV ,  Igor GORSHKOV

IPC分类号： G01V3/12 ,  G08B21/02 ,  G01V8/00 ,  G01V8/10 ,  H04N13/02 ,  H04N7/18

CPC分类号： G01V3/12 ,  G01V8/005 ,  G01V8/10 ,  G06K9/00771 ,  G06K2209/09 ,  G08B13/196 ,  G08B21/02 ,  H04N5/30 ,  H04N5/32 ,  H04N7/181 ,  H04N13/239 ,  H04N13/282

摘要： The present invention comprises a multi-modal security checkpoint. The security checkpoint can simultaneously scan for and simultaneously identify hidden metallics (e.g., weapons, shrapnel) and non-metallics (e.g., explosives, dielectrics). The security checkpoint performs scanning and identifying at a rate of 15 or more frames per second for all targets within the inspection area. The security checkpoint comprises blocks for sending and receiving radiation signals, the blocks comprising transmitters and/or receivers, the blocks being configured to share information to compare cross- and co-polarizations of signals emitted. The security checkpoint combines many threat detection technologies into one checkpoint that allows it to be robust and detect a large variety of threats in mass transit hubs requiring high throughput processing capabilities.

公开(公告)号：US09752917B2

公开(公告)日：2017-09-05

申请号：US14163164

申请日：2014-01-24

申请人： SICK AG

发明人： Thomas Weber

IPC分类号： G01F23/28 ,  G01V3/12 ,  G01S7/40 ,  G01F23/284 ,  G01V8/00 ,  G01F23/00 ,  G01V3/00 ,  G01S7/00 ,  G01S13/00

CPC分类号： G01F23/284 ,  G01F23/2845 ,  G01S7/003 ,  G01S7/40 ,  G01V3/12 ,  G01V8/005

摘要： A microwave barrier (10) is provided which has a first microwave unit (14a) having a microwave transmitter and a first antenna (16a) for transmitting a microwave signal and which has a second microwave unit (14b) having a microwave receiver and a second antenna (16b) for receiving the microwave signal and which also has an evaluation unit which is configured to recognize from the received microwave signal whether an object (17) is located on the microwave path (12) between the first microwave unit (14a) and the second microwave unit (14b). In this respect, the first microwave unit (14a) and the second microwave unit (14b) each have a radio frequency transceiver to transmit and to receive microwave signals and the radio frequency transceiver is part of an integrated digital module for wireless communication.

公开(公告)号：US09618824B2

公开(公告)日：2017-04-11

申请号：US14499115

申请日：2014-09-27

申请人： Intel Corporation

发明人： Edris M. Mohammed ,  Ibrahim Ban

IPC分类号： G02F1/35 ,  H01L31/14 ,  G01V8/00

CPC分类号： G02F1/353 ,  A61B5/1135 ,  A61B5/14532 ,  G01N21/3586 ,  G01N2021/1793 ,  G01V8/005 ,  G02F2203/13 ,  H01L31/14

摘要： Systems and methods may provide for an integrated miniature sensor that operates in the Terahertz region of the electromagnetic spectrum. The integrated miniature sensor may detect a remote target and operate in a non-contact, non-invasive manner. Numerous signal analysis techniques may be employed such as Doppler radar technology, absorption spectroscopy, and others when the integrated miniature sensor is used in biomedical, physiological and other settings where prolonged recording of bio-signals is needed.