Hand-held safety-check device and safety-check method

A technology for security inspection and equipment, applied in electromagnetic wave detection, etc., can solve the problems of unsuccessful use in the field of security inspection, missed detection of external signals, insufficient penetration depth of the detection head, etc., to achieve high-efficiency automatic detection, accurate signal acquisition, and easy operation The effect of simple method

Inactive Publication Date: 2017-02-15
北京澳丰源科技有限公司
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Problems solved by technology

[0003] However, this detection method also has its limitations: 1. It is only suitable for the detection of conductive metal materials or non-metallic materials that can induce eddy current; 2. It is only suitable for near-field detection, and the detection distance affects the measurement effect; 3. The influence of eddy current effect There are many factors, and it is still difficult to ch

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  • Hand-held safety-check device and safety-check method
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  • Hand-held safety-check device and safety-check method

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[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without cre...

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Abstract

The invention discloses a hand-held safety-check device and a safety-check method. The hand-held safety-check device comprises a detection main body, the detection main body is provided with a display module and a detection surface, the detection main body also comprises an electromagnetic induction module, a microwave detection module and a master control module, the electromagnetic induction module and the microwave detection module are connected with the master control module, the master control module makes an analytical comparison between an electromagnetic detection signal result output by the electromagnetic induction module and a microwave detection signal result output by the microwave detection module to obtain a detection analysis result, the master control module is then connected with a display unit and performs displaying and early warning on the detection analysis result, and the microwave detection module comprises a microwave scattering imaging algorithm unit.

Description

technical field [0001] The invention relates to the technical field of security inspection equipment, in particular to a security inspection device and a security inspection method based on microwave detection and electromagnetic detection. Background technique [0002] At present, the handheld security inspection equipment on the market mainly detects metal objects, and the detection principle is the principle of electromagnetic induction. When the test coil carrying the alternating current is close to the conductor, the alternating magnetic field generated by the coil will induce a current (ie eddy current) in the conductor. The size, phase and flow form of the eddy current are affected by the properties of the workpiece (conductivity, magnetic permeability, shape, size), and the reaction to the magnetic field changes the voltage and impedance of the coil. Therefore, the existence of a conductor can be judged by measuring the change of the voltage or impedance of the test...

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Application Information

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IPC IPC(8): G01V3/12
CPCG01V3/12
Inventor 雷崇文孟剑
Owner 北京澳丰源科技有限公司
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