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Device and method for testing cable on/off and resistance

A testing device and cable technology, applied in the direction of measuring device, measuring resistance/reactance/impedance, fault location, etc., can solve the problems of high work intensity, poor accuracy and precision of inspection results, lack of inspection instruments, etc., to improve the measurement accuracy , the effect of improving work efficiency

Inactive Publication Date: 2019-02-19
SHANGHAI YUDA IND
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AI Technical Summary

Problems solved by technology

[0003] The current cable on-off and resistance tests mainly have the following problems: 1. Lack of special inspection equipment, generally using a multimeter for inspection; 2. Low efficiency and high work intensity, quality inspection personnel check one by one according to the checklist with a multimeter in hand; 3. .The accuracy and precision of the inspection results are poor, and it is easy to miss or repeat inspections

Method used

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  • Device and method for testing cable on/off and resistance
  • Device and method for testing cable on/off and resistance
  • Device and method for testing cable on/off and resistance

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specific Embodiment approach

[0091] The invention also includes a method for eliminating the internal resistance of the test loop. Due to the problem of the internal resistance of the test circuit in the two-wire measurement resistance, in order to ensure the measurement accuracy, it must be removed from the measurement value. The specific implementation is as follows:

[0092] Short-circuit the four aviation sockets on the test case with cables, log in to the test software as an administrator, and the test software will open the option of "loop internal resistance correction". Click the "loop internal resistance correction" button, the test software will test the loop internal resistance value, and a new internal resistance database file will be generated after the test is completed. The user will name the new internal resistance database file, and the file will be added to the cable model configuration file of the test software. , when testing this type of cable, just select this option.

[0093] The ...

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Abstract

The invention provides a device and method for testing cable on / off and resistance, comprising a portable chassis, a PXI chassis, a test host, a digital multimeter, a multiplexer switch, an aviation socket, a keyboard, and a display. The PXI chassis is located in a lower half of the portable chassis. The aviation socket and the keyboard are embedded above the lower half of the portable chassis toform an operation panel. The display is located in an upper half of the portable chassis. The PXI chassis is equipped with the test host, the digital multimeter, and the multiplexer switch. Accordingto the device and method for testing cable on / off and resistance, the automatic measurement of the on / off of a cable bundle is achieved, and the test result data can be stored and printed. The deviceand method greatly improve the automation of a cable bundle on / off test, are portable and flexible, and are suitable for use in a variety of complex environments.

Description

technical field [0001] The invention belongs to the technical field of automatic testing, and relates to a cable on-off and resistance testing device and method. Background technique [0002] The various components on the satellite are usually connected by cables of different specifications, and these cables are all customized. In order to ensure reliable cable connection and meet the design requirements, the on-off and resistance of the cable must be tested before installation. The accuracy and accuracy of the test results will directly affect the selection of qualified connecting cables to ensure the normal operation of the connected components. Significance. [0003] The current cable on-off and resistance tests mainly have the following problems: 1. Lack of special inspection equipment, generally using a multimeter for inspection; 2. Low efficiency and high work intensity, quality inspection personnel check one by one according to the checklist with a multimeter in hand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G01R27/08
CPCG01R27/08G01R31/083
Inventor 江浩韦笑沈辉汪新舜姜林
Owner SHANGHAI YUDA IND
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