A coil structure for a pass-through detector and a detector composed of the same

A detector and coil technology, applied in the field of detectors, can solve problems such as missed judgments, and achieve the effect of improving the reliability of security inspection and solving the blind area of ​​testing.

Inactive Publication Date: 2019-01-29
DONGGUAN HUADUN ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this time, there may be misjudgment

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  • A coil structure for a pass-through detector and a detector composed of the same
  • A coil structure for a pass-through detector and a detector composed of the same
  • A coil structure for a pass-through detector and a detector composed of the same

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the scope of protection of the present invention is not limited to the scope described in the embodiments.

[0021] Please refer to figure 2 , figure 2 It is a schematic diagram of the first embodiment of the coil structure used in the coil structure of the pass-through detector according to the present invention. The through-type detector described in the present invention is used for detecting metal parts passing through the body of the person to be tested. The coil structure for the pass-through detector includes a first transmitting coil 102 , a second transmitting coil 103 , a third transmitting coil 104 , and a receiving coil (not shown). The first transmitting coil 102 , the second transmitting coil 103 , and the third transmitting coil 104 are respectively connected to the receiving coils in an electromagnetic coupling manner. When an exc...

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Abstract

The invention discloses a coil structure for a through-type detector and a detector formed from the coil structure. The coil structure for the through-type detector is characterized by comprising a first emission coil, a second emission coil, a third emission coil and a receiving coil, wherein the first emission coil, the second emission coil and the third emission coil are separately connected with the receiving coil in an electromagnetic coupling mode, the first emission coil and the second emission coil are arranged in parallel, and the third emission coil is perpendicular to each of the first emission coil and the second emission coil. With the coil structure for the through-type detector, disclosed by the invention, the detection capability of the through-type detector is improved, and the defect that a test blind region exists at a top position of the through-type detector in the prior art is overcome.

Description

technical field [0001] The invention relates to a pass-through detector technology, in particular to a coil structure for a pass-through detector and a detector made of the same. Background technique [0002] Pass-through detectors are widely used in various fields. Pass-through detectors will be installed in stations, airports, entertainment venues and other places. The pass-through detector detects whether there are metal objects on the person in a non-contact manner. The pass-through detector is equipped with a transmitting coil and a receiving coil inside. When there is metal close to the pass-through detector, the eddy current effect produced by the metal will affect the magnetic field around the pass-through detector. At this time, the receiving coil will generate an induced current, and the voltage will change accordingly. By detecting the voltage change of the receiving coil, it can be judged whether there is a metal substance. [0003] However, the test reliabil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/14H01F27/30G01V3/10
CPCG01V3/10H01F27/306H01F38/14H01F2038/143
Inventor 陈英杰王积东王孝洪
Owner DONGGUAN HUADUN ELECTRONICS TECH CO LTD
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