Automatic insulation resistance and characteristic resistance tester

A characteristic resistance and insulation resistance technology, applied in the field of circuit measurement, can solve problems such as low intelligence, long measurement time, and heavy workload, and achieve the effects of convenient control, high degree of automation, and reliable internal contact

Active Publication Date: 2014-03-26
BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing inspection technology, there is a phenomenon of manually measuring the resistance of a large number of electrical nodes, resulting in a large workload of manual measurement, error-prone, long measurement time, and low intelligence. In order to meet the requirements of automated test

Method used

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  • Automatic insulation resistance and characteristic resistance tester
  • Automatic insulation resistance and characteristic resistance tester

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Embodiment Construction

[0018] like figure 1 As shown, the present invention includes a test cable 1 , a multiplexing switch module 2 , a multimeter module 4 , a CPCI bus 5 and an industrial control computer 6 .

[0019] The multiplexing switch module 2 is connected to the electrical node interface of the device under test through the test cable 1, the output channel interface of the multiplexing switch module 2 is connected to the measuring channel interface of the multimeter module 4, and the multimeter module 4 is connected to the measuring channel interface through the multiplexing switch. The module 2 automatically measures the resistance value of the electrical node of the device to be tested and outputs it to the CPCI bus 5, and the industrial control computer 6 takes out the data from the CPCI bus 5 for processing and displaying.

[0020] like figure 2 As shown, the multiplexing switch module 2 includes a mode selection switch 201, a 64-choice channel switch 202 and a 32-choice 2-channel sw...

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Abstract

The invention discloses an automatic insulation resistance and characteristic resistance tester which comprises a testing cable, a multiplexing switch module, a universal meter module, a CPCI bus and an industrial personal computer. The multiplexing switch module is connected with an electrical node interface of a device to be tested through the testing cable and can control an internal relay switch through programs to enable input channels to be automatically disconnected and connected with an output channel, the universal meter module automatically measure a resistance value of an electrical node of the device to be tested through the multiplexing switch module and outputs a measurement result to the CPCI bus, the industrial personal computer reads data from the CPCI bus and performs processing and displaying. The automatic insulation resistance and characteristic resistance tester can automatically test insulation resistance and characteristic resistance of the electrical node of the device to be tested, the problems including complicated connection in the traditional product checkout process and errors, time waste and the like caused by manual operation are solved, and the tester has the advantages of being high in reliability and accuracy and saving the time.

Description

technical field [0001] The invention relates to a resistance tester, in particular to an automatic tester for insulation resistance and characteristic resistance, which belongs to the field of circuit measurement. Background technique [0002] Due to the inspection requirements of the interface electrical nodes of the electrical device, it is necessary to detect the resistance between each electrical node and the casing and the resistance between each electrical node, and the resistance value of all electrical nodes should meet the electrical design requirements of the electrical device. In the existing inspection technology, there is a phenomenon of manually measuring the resistance of a large number of electrical nodes, resulting in a large workload of manual measurement, error-prone, long measurement time, and low intelligence. In order to meet the requirements of automated testing of electrical nodes, automation is required. The resistance detection device should meet th...

Claims

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Application Information

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IPC IPC(8): G01R27/02
Inventor 张东旭王康胡常青周斯勉
Owner BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH
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