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A metal-enclosed in-body tester trigger device based on giant magnetoresistance magnetic sensitivity

A technology of giant magnetoresistance and triggering device, which is applied to measuring devices, parts and instruments of electrical measuring instruments, etc., can solve the problems of difficult and effective triggering of metal-enclosed internal storage testers, and achieve high permeability, low loss, Reliable Triggered Effects

Active Publication Date: 2019-05-17
ZHONGBEI UNIV
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  • Abstract
  • Description
  • Claims
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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

Method used

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  • A metal-enclosed in-body tester trigger device based on giant magnetoresistance magnetic sensitivity
  • A metal-enclosed in-body tester trigger device based on giant magnetoresistance magnetic sensitivity
  • A metal-enclosed in-body tester trigger device based on giant magnetoresistance magnetic sensitivity

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Embodiment Construction

[0028] 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.

[0029] The following is a detailed description of the giant magnetoresistance magnetic sensitivity-based metal-enclosed internal tester trigger device of the present invention in conjunction with the accompanying drawings.

[0030]A trigger device for a tester in a metal enclosure based on giant magnetoresistance magnetic sensitivity, the trigger device includes a U-shaped magnet 2a arranged on the left side of the outer wall of the metal enclosure 1, and the tw...

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Abstract

The invention discloses a trigger device for a tester in a metallic enclosed body based on giant magneto-resistor magnetic sensitiveness. The trigger device is such that the two magnetic poles of a U-shaped magnet are brought close to the outer wall of the metallic enclosed body opposite to the first and second magnetizers, and a magnetic signal is applied to the inside of the metallic enclosed body, so that the resistance of one set of giant magneto-resistors located on the lower portion and upper portion of a third magnet is increased, and the resistance of the other set of giant magneto-resistors is reduced. A resistance signal formed by the resistance changes of giant magneto-resistors is converted into a voltage output signal, which is subjected to amplification, blocking, filtering and comparison to get a voltage signal jumping from low level to high level, namely the voltage signal capable of causing triggering of a storage tester. The density of the magnetic induction lines is adjusted through the mutual attraction and mutual repulsion of the polarity between the magnets to further adjust the magnetic field strength, so that the sensitive change of the giant magneto-resistors 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 trigger device for a tester in a metal airtight body based on giant magnetoresistance magnetic sensitivity. 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R1/30
CPCG01R1/30G01R31/00
Inventor 陈昌鑫王欢郑艳军王宇冯骅马铁华武耀艳裴东兴靳鸿张红艳张瑜崔建峰孙传猛
Owner ZHONGBEI UNIV
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