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Through type metal detecting system

A metal detection and channel technology, used in the field of metal detection systems, can solve the problem of uneven distribution of detection magnetic fields, inability to accurately distinguish between multiple small metal objects and larger metals, and inability to distinguish small non-ferromagnetic metal substances. Anti-electromagnetic interference ability And other issues

Inactive Publication Date: 2006-09-20
郭有军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem of the uneven distribution of the magnetic field detected by the pass-through metal detector in the prior art, the present invention provides a pass-through metal detection system that detects a uniform distribution of the magnetic field
In addition, the present invention further solves the technical problems that the pass-through metal detector in the prior art cannot accurately distinguish multiple small metal objects from larger metals, cannot distinguish small non-ferromagnetic metal substances, and has poor anti-electromagnetic interference ability.

Method used

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the drawings and embodiments.

[0033] Please refer to figure 1 with figure 2 , Respectively are a system block diagram and a schematic block diagram of an embodiment of the pass-through metal detection system of the present invention. The pass-through metal detection system includes a central processing unit I1, a signal processing circuit I5 whose output is connected to the input of the central processing unit I1, and a programmable logic processor I2 whose input is connected to the output of the central processing unit I1. The output terminal of the programmable logic processor I2 is connected to the oscillating circuit I3, and the input terminal is connected to the output terminal of the oscillating circuit I3, and the coil group I4 is connected to the output terminal of the oscillation circuit I3. In addition, the detection system also includes a display module to provide multi-language displ...

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Abstract

The invention relates to a passing through type metal probe system that includes signal process circuit, CPU, oscillating circuit and coil assembly that includes emitting coil and receiving coil. The invention could equally probe magnetic field and has good anti electromagnetic interference ability. It could determine the approximate location of the metal object.

Description

【Technical Field】 [0001] The invention relates to a metal detection system, in particular to an intelligent through-type metal detection system. 【Background technique】 [0002] The main function of the pass-through metal detection system is to accurately detect hidden prohibited metal objects (such as firearms and knives carried by individuals). In recent years, the pass-through metal detection system has been widely used in public places such as airports, schools, courts, stadiums, railway stations, passenger terminals, etc. During the security inspection process, the pass-through metal detection system has become a necessary equipment. [0003] For the detection of prohibited metal objects, the operation of the existing pass-through detection system has at least four defects: First, in the pass-through detection system, the original detection magnetic field generated by the transmitter-receiver coil has a working blind spot. Carrying prohibited metal objects through these blind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/11
Inventor 郭有军
Owner 郭有军
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