Millimeter wave/terahertz wave security instrument and reflector scanning driving device thereof
A technology of scanning drive and reflecting plate, which is applied in geological exploration, measuring device, optical device exploration and other directions using millimeter waves, can solve the problem of reducing the effective field of view, and achieve real-time calibration, high utilization rate, and field of view sampling uniform effect
Pending Publication Date: 2019-03-26
NUCTECH CO LTD +1
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but figure 2 The problem with the method is that since all detectors will be on the left and right edges of the field of view, this method must perform detector calibration at these two positions (or one of them), but the left and right edges of the field of view are usually also sensitive areas. Use for calibration will reduce the actual effective field of view
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[0047] Although the present disclosure will be fully described with reference to the accompanying drawings containing preferred embodiments of the present disclosure, it should be understood before proceeding that those skilled in the art can modify the disclosure described herein while obtaining the technical effects of the present disclosure. Therefore, it should be understood that the above description is a broad disclosure for those of ordinary skill in the art, and its content is not intended to limit the exemplary embodiments described in the present disclosure.
[0048] In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form...
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The invention provides a reflector scanning driving device and a millimeter wave / terahertz wave security instrument. The reflector scanning driving device includes a connection shaft, a supporting member, an inverted bowl-shaped member and a driving mechanism, wherein a lower end of the connection shaft is connected with a reflector, the connection shaft and the reflector have an angle alpha, a top surface of the supporting member is a spherical surface, a hole for penetration of the connection shaft is formed on the supporting member, the bowl-shaped member is connected with the connection shaft, a lower surface of the bowl-shaped member is in sliding matching with the top surface of the supporting member, the driving mechanism is connected with an upper end portion of the connection shaft and is suitable for driving the upper end portion of the connection shaft to rotate along the elliptical trajectory to drive the reflector connected with the connection shaft to do pitching swing and horizontal swing to make a detector array of the millimeter wave / terahertz wave security instrument arrange in the linear mode, when the arrangement direction is perpendicular to the normal of the field of view, the scanning trajectory of the detector array for the field of view is elliptical with a flat top and a flat bottom so as to realize the single human body scanning field of view, and real-time calibration of the detector array is facilitated.
Description
technical field [0001] The present disclosure relates to the technical field of security inspection, and in particular to a reflective plate scanning drive device, and a millimeter wave / terahertz wave security inspection instrument including the reflective plate scan drive device. Background technique [0002] At present, behaviors such as using the human body to carry dangerous items (such as controlled knives, guns, and explosives, etc.) into and out of public places or on public transportation, or carrying prohibited items (a large amount of cash, precious metals, electronic products, etc.) into customs still exist , which seriously threatens public security or infringes on national interests, urgently needs to be inspected through technical means. [0003] At present, the security inspection methods for the human body mainly include manual inspection, X-ray inspection, millimeter wave / terahertz inspection, etc. Among them, the manual inspection method is slow and the ins...
Claims
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IPC IPC(8): G01V8/00G01V8/22
CPCG01V8/005G01V8/22
Inventor 陈志强武剑赵自然游燕马旭明黄士卫
Owner NUCTECH CO LTD