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Method for measuring conducting ring contact electric resistance using tricycle method

A contact resistance, conductive ring technology, applied in the direction of measuring resistance/reactance/impedance, measuring electrical variables, measuring devices, etc., can solve problems such as wire winding, and achieve the effect of solving wire winding

Inactive Publication Date: 2007-08-22
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The effect and benefit of the present invention are to solve the wire winding problem existing in the current conductive ring dynamic contact resistance measurement work, and the dynamic contact resistance of each ring can be obtained

Method used

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  • Method for measuring conducting ring contact electric resistance using tricycle method

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Embodiment Construction

[0007] The implementation steps for realizing the present invention will be described in detail below in conjunction with the accompanying drawings.

[0008] Step 1. Divide the conductive ring 1, conductive ring 2 and conductive ring 3 into a group, and short the three brush leads 1', 2', 3' corresponding to the three conductive rings.

[0009] Step 2. Connect the conductive ring lead wire of conductive ring 1 to the constant current signal input, and connect the conductive ring lead wire of conductive ring 3 to the constant current signal output.

[0010] Step 3. Connect the two test connectors of the voltage testing instrument 4 to the conductive ring leads of the conductive ring 2 and the conductive ring 3 respectively.

[0011] Step 4. Make the group of conductive rings rotate and work, and input a constant current signal, and then read out the measured voltage value of the voltage testing instrument. Since no current passes through the conductive ring 2 , the conductive ...

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Abstract

This is a measuring method of the conducting-ring constriction resistance adopting the triple-ring which belongs to the field of electric test-statistics. Its characters lie in grouping three conducting rings and making the three wire leads of the conducting-ring rotating part short circuit. The two fixed wire leads are connected separately to the steady current signal adopting the voltage-measuring device to measure the voltage between the other wire lead and the signal-injected optional wire lead. According to the ohm's law, it can workout the constriction resistance value range of the conducting ring by the measured voltage range and the injected current value.

Description

technical field [0001] The invention relates to a method for measuring the contact resistance of a conductive ring, in particular to a method for measuring the contact resistance of a conductive ring by using a three-ring method, which belongs to the field of electrical testing and measurement. Background technique [0002] The conductive ring is a precision electromechanical device that realizes the transmission of power and electrical signals of two relative rotating mechanisms. It is especially suitable for use in opto-electromechanical systems that transmit power and data signals with unlimited continuous rotation. Its contact resistance, especially dynamic contact resistance, is an important signal One of the most important technical indicators of transmission stability. The existing method of measuring the contact resistance of the conductive ring is generally to directly use the test instrument to measure the resistance between the brush and the conductive ring to obt...

Claims

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Application Information

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IPC IPC(8): G01R27/14
Inventor 姜彬范天泉曹学东
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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