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公开(公告)号：US20180038798A1
公开(公告)日：2018-02-08
申请号：US15613265
申请日：2017-06-05
Applicant: Nuctech Company Limited
Inventor： Li ZHANG , Ziran ZHAO , Jianhong ZHANG , Hongqiu WANG , Yubo ZHANG , Haihui LIU
CPC classification number: G01N21/65 , G01J3/0208 , G01J3/021 , G01J3/0218 , G01J3/0221 , G01J3/0227 , G01J3/0256 , G01J3/44 , G01J2003/1213 , G01N2201/0221 , G01N2201/06113 , G01N2201/08 , G01N2201/0833
Abstract: The disclosure provides a portable Raman device that includes a laser for emitting exciting light; a spectrometer for receiving Raman scattered light and converting the Raman scattered light into an electrical signal after beam splitting; a probe for leading the exciting light to irradiate on a sample and collect the Raman scattered light of the sample; and a fiber system connected between the laser and the probe as well as between the probe and the spectrometer so as to conduct light transmission. In comparison to conventional Raman devices, the portable Raman device of the disclosure has a simplified optical system, such that placement of components of the Raman device are more flexible, the whole size of the Raman device are reduced, and thus requirements of size miniaturization and quick real-time measurement are satisfied.
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公开(公告)号：US20190391080A1
公开(公告)日：2019-12-26
申请号：US16467037
申请日：2017-11-07
Applicant: NUCTECH COMPANY LIMITED
Inventor： Ankai WANG , Hongqiu WANG , Yumin YI , Haihui LIU , Jianhong ZHANG
IPC: G01N21/65
Abstract: The present disclosure relates to a non-contact type security inspection and method, the system including: a laser source for emitting probe light beams which penetrate through a container or a packaging and are irradiated onto an inspected object contained in the container or the packaging; an optical collection device for collecting an exciting light excited by the probe light beams on the inspected object; a spectrum analyzer for analyzing spectral characteristics of the exciting light collected by the optical collection device so as to determine characteristics of the inspected object; and a shielding apparatus for preventing at least part of the exciting light excited by the probe light beams on the container or the packaging from entering an induction
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公开(公告)号：US20210231568A1
公开(公告)日：2021-07-29
申请号：US16313567
申请日：2018-12-21
Applicant: NUCTECH COMPANY LIMITED
Inventor： Jianhong ZHANG , Hongqiu WANG , Jiaqian ZUO , Haihui LIU
Abstract: A method and an apparatus for inspecting security of an object to be detected. The method includes: guiding an exciting light to the object, collecting a first optical signal from the object and generating .a first spectrum from the first optical signal; guiding the exciting light to the object again after a certain time interval, collecting a second optical signal from the object and generating a second spectrum from the second optical signal; and comparing the first spectrum with the second spectrum to determine whether or not the object is damaged.
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公开(公告)号：US20190195804A1
公开(公告)日：2019-06-27
申请号：US16229589
申请日：2018-12-21
Applicant: NUCTECH COMPANY LIMITED
Inventor： Haihui LIU , Hongqiu Wang , Jianhong Zhang
CPC classification number: G01N21/658 , G01J3/027 , G01J3/44 , G01J3/4412 , G01J2003/4418 , G01N21/27 , G01N21/65
Abstract: A detection apparatus includes: a laser configured to emit laser light towards an object to be detected; a Raman spectrometer configured to receive a Raman light signal from the object; a light sensor configured to receive portions of the laser light reflected and scattered by the object under irradiation of the laser light, and to determine power of the received portions of the laser light; and a controller configured to control an operation of the detection apparatus based on the power determined by the light sensor. Further, there is provided a detection method using the above detection apparatus.
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