Computer micro-resistor high-precision testing device based on CPCI

A test device and computer technology, applied in the direction of measuring device, measuring resistance/reactance/impedance, measuring electrical variables, etc., can solve the problems of single test result output function, low test accuracy, single function, etc., and achieve man-machine communication information Rich, high degree of automation, high measurement accuracy effect

Inactive Publication Date: 2013-12-25
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The present invention overcomes the deficiencies of the prior art, and provides a high-precision testing device based on CPCI computer micro-resistance, in order to solve the problem of low test accuracy, single functionality, poor interaction, and single output function of test results in the prior art. question

Method used

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  • Computer micro-resistor high-precision testing device based on CPCI
  • Computer micro-resistor high-precision testing device based on CPCI
  • Computer micro-resistor high-precision testing device based on CPCI

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Embodiment Construction

[0021] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0022] Such as figure 1 as shown, figure 1 A schematic structural diagram of an embodiment of the present invention is shown. The present invention is based on the CPCI computer micro-resistance high-precision testing device, comprising: a constant current source 100 providing reference excitation for the resistance to be measured Rx, a signal conditioning card 101 for processing the voltage drop signal from the resistance to be measured, for collecting The CPCI acquisition card 102 of signal, man-machine information interaction platform 103, CPCI computer 105; CPCI computer is a portable CPCI computer in the present embodiment; Constant current source is connected with signal conditioning card; Signal conditioning card is connected with CPCI acquisition card; CPCI acquisition card It is connected with the human-computer information interaction platform; the human-c...

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Abstract

The invention discloses a computer micro-resistor high-precision testing device based on the CPCI. The device comprises a constant flow source used for providing reference stimulation for a resistor to be tested, a signal conditioning card used for processing voltage drop signals sent by the resistor to be tested, a CPCI collecting card used for collecting signals, a man-machine information interaction platform and a CPCI computer, wherein the constant flow source is connected with the signal conditioning card, the signal conditioning card is connected with the CPCI collecting card, the CPCI collecting card is connected with the man-machine information interaction platform, and the man-machine information interaction platform is connected with the CPCI computer. The computer micro-resistor high-precision testing device based on the CPCI has the advantages that measuring accuracy is high and can reach +/-0.1 milliohm; the automation degree is high, and automatic measurement, automatic data judgment, automatic test report generation and automatic filing can be achieved; man-machine communication information is rich, a great amount of information of products to be tested can be typed in, and test results can be fed back in the form of diagrams, files, animation and the like.

Description

technical field [0001] The invention relates to a resistance testing device, in particular to a high-precision testing device for micro-resistance based on a CPCI computer. Background technique [0002] The resistance test device is an indispensable electronic equipment tool for electrical safety inspection and grounding project completion acceptance. Including grounding resistance testing device, insulation resistance testing device, DC resistance measuring instrument, surface resistance testing device and loop resistance testing device. [0003] In the prior art, there is no DC micro-resistance testing device specially used for explosive products and other dangerous goods, mainly because the resistance of these objects to be tested is very small, most of which are in the milliohm level, and the test current required to pass due to safety requirements must be within the milliampere-level safe range. Most of the milliohmmeter test currents on the market do not meet this re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/14
Inventor 董明陆蔺辉邵伟杨菊辉魏志勇范玉德郑海广高国防火旭宇
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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