Method for triggering tester in metal closed body based on giant magnetoresistance effect

A giant magnetoresistance and tester technology, which is applied in the field of triggering testers in metal-enclosed bodies based on the giant magnetoresistance effect, can solve problems such as the difficulty of effectively triggering storage testers in metal-enclosed bodies, and achieve high magnetic permeability and enhanced magnetic permeability Can, guarantee the effect of reliable transmission

Inactive Publication Date: 2017-10-13
ZHONGBEI UNIV
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  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the storage tester in the metal airtight body is difficult to trigger effectively, the present invention provides a triggering method for the tester in the metal airtight body based on the giant magnetoresistance effect

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  • Method for triggering tester in metal closed body based on giant magnetoresistance effect
  • Method for triggering tester in metal closed body based on giant magnetoresistance effect
  • Method for triggering tester in metal closed body based on giant magnetoresistance effect

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Embodiment Construction

[0030]In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0031] The method for triggering a metal-enclosed tester in a metal enclosure based on the giant magnetoresistance effect of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] A triggering method for a tester in a metal-enclosed body based on the giant magnetoresistance effect, the triggering method is realized by a triggering device,

[0033] The trigger device includes a U-shaped magnet 2a arranged on ...

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Abstract

The invention discloses a method for triggering a tester in a metal closed body based on a giant magnetoresistance effect. The method comprises the following steps: enabling two magnetic poles of a U-shaped magnet to be close to the outer wall, opposite to a first magnetizer and a second magnetizer, of the metal closed body; exerting a magnetic signal on the interior of the metal closed body, so that the resistance value of one of giant magnetoresistors positioned on the upper part and the lower part of a third magnetizer increases and the resistance value of the other giant magnetoresistor decreases; converting a resistance signal formed by resistance changes of the giant magnetoresistors into a voltage output signal; amplifying, blocking, filtering and comparing the voltage output signal to obtain a voltage signal jumping from low level to high level, namely the voltage signal capable of causing start triggering of the stored tester, so as to achieve the triggering of the stored tester. Through mutual attraction and mutual repulsion of polarities between the magnets, the density of magnetic induction lines is adjusted to adjust the magnetic field intensity, so that sensitive changes of the giant magnetoresistors can be reliably adjusted.

Description

technical field [0001] The invention relates to a method for triggering a tester in a dormant state in a metal airtight body by utilizing the giant magnetoresistance effect, in particular to a method for triggering a tester in a metal airtight body based on the giant magnetoresistance effect. Background technique [0002] At present, the memory tester has a wide range of applications, and plays a vital role in the field of dynamic parameter testing of moving parts where signal transmission is difficult. The storage tester completes the dynamic parameter test in real time and live. After the test is completed, take out the storage tester in the metal airtight body to analyze and process the acquired data. [0003] Storage testers (for example: Invention Patent - Micro-miniature Intelligent Electronic Tester - CN200910074322.X) generally use lithium batteries to supply power and non-volatile memory to store data. Micro-volume and low power consumption requirements are specifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/20G01V9/00H03K17/95
CPCG01N33/20G01V9/00H03K17/95
Inventor 马铁华陈昌鑫武耀艳张红艳靳鸿裴东兴王欢郑艳军王宇冯骅
Owner ZHONGBEI UNIV
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