CN101021558B - Method for measuring conducting ring contact electric resistance using tricycle method - Google Patents
Method for measuring conducting ring contact electric resistance using tricycle method Download PDFInfo
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- CN101021558B CN101021558B CN200710064688XA CN200710064688A CN101021558B CN 101021558 B CN101021558 B CN 101021558B CN 200710064688X A CN200710064688X A CN 200710064688XA CN 200710064688 A CN200710064688 A CN 200710064688A CN 101021558 B CN101021558 B CN 101021558B
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- conducting ring
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- ring
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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
The present invention relates to a kind of method of measuring conducting ring contact electric resistance, particularly a kind of method that adopts tricycle method to measure conducting ring contact electric resistance belongs to the electrical testing metering field.
Background technology
Conducting ring is to realize that two relatively rotate the power supply of mechanism and the accurate electromechanical assembly of electric signal transmission, be particularly suitable for being applied in the ray machine electric system of unrestricted transmission power supply that rotates continuously and data-signal, its contact resistance especially dynamic contact resistance is one of main technical indicator that influences stable signal transmission.Existing conducting ring contact electric resistance measuring method generally is that the resistance that directly adopts testing tool to measure between brush and the conducting ring obtains contact resistance, because conducting ring is relative with brush to be rotated, if just toward a direction rotation, can twine owing to rotation at measuring process center brush and conducting ring two ends lead-in wire, can not long-time continuous wheel measuring observation stability.In order to improve the efficiency of measurement of conducting ring contact electric resistance, just need a kind of method that can solve the lead winding.
Summary of the invention
Technology of the present invention is dealt with problems: overcome the deficiencies in the prior art, provide a kind of method that adopts tricycle method to measure conducting ring contact electric resistance to solve the lead that exists in the present conducting ring contact electric resistance actual measurement work and twine problem, and obtain the contact resistance of each ring.
Technical solution of the present invention: adopt tricycle method to measure the method for conducting ring contact electric resistance, it is characterized in that: conducting ring three rings are divided into one group, three lead-in wire short circuits with the conducting ring rotating part, two lead-in wires of fixed part insert constant current signal respectively, adopt the voltage tester instrument to measure the voltage between arbitrary lead-in wire two ends in two lead-in wires of another lead-in wire and access signal, by recording range of voltage values and inserting the contact resistance value scope that current value can calculate conducting ring, this resistance value scope is the dynamic contact resistance of conducting ring according to Ohm law.
Effect of the present invention and benefit are to have solved the lead that exists in the present conducting ring dynamic contact resistance surveying work to twine problem, and can obtain the dynamic contact resistance of each ring.
Description of drawings
Fig. 1 is a principle schematic of the present invention, the rotation of conducting ring course of work center brush, and conducting ring maintains static.
Embodiment
Be described in detail realization implementation step of the present invention below in conjunction with accompanying drawing.
Step 1. is divided into one group with conducting ring 1, conducting ring 2 and conducting ring 3, and with three brush-leads 1 ', 2 ', the 3 ' short circuit of three conducting ring correspondences.
Step 4. makes this group conducting ring rotary work, and the input constant current signal, and the read-out voltage testing tool records magnitude of voltage then.Because on the conducting ring 2 and the no current process, so conducting ring 2 equivalences are a lead, record magnitude of voltage and are conducting ring 3 both end voltage values.
By recording the contact resistance value scope that range of voltage values and constant current value can calculate conducting ring 3, this resistance value scope is the dynamic contact resistance of conducting ring 3 to step 5. according to Ohm law.
Use this method to measure in the conducting ring contact electric resistance process, because the lead-in wire of brush end short circuit is all followed the brush rotation, do not relatively rotate each other, twining can not appear in lead-in wire; The conducting ring lead-in wire maintains static, and does not also relatively rotate, and twining can not appear in lead-in wire yet, so this method also can solve the coiling problem in the measuring process.And because this method records is the resistance change scope at monocycle two ends, so can measure the contact resistance of each ring easily.
Claims (1)
1. adopt tricycle method to measure the method for conducting ring contact electric resistance, it is characterized in that:
(1) three conducting rings is divided into one group, with three lead-in wire short circuits of conducting ring rotating part;
(2) two of fixed part lead-in wires insert constant current signal respectively, voltage in another lead-in wire of employing voltage tester instrument measurement fixed part and two lead-in wires of access signal between arbitrary lead-in wire two ends, by recording range of voltage values and inserting the contact resistance value scope that current value can calculate conducting ring, this resistance value scope is the dynamic contact resistance of conducting ring according to Ohm law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710064688XA CN101021558B (en) | 2007-03-23 | 2007-03-23 | Method for measuring conducting ring contact electric resistance using tricycle method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710064688XA CN101021558B (en) | 2007-03-23 | 2007-03-23 | Method for measuring conducting ring contact electric resistance using tricycle method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101021558A CN101021558A (en) | 2007-08-22 |
| CN101021558B true CN101021558B (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710064688XA Expired - Fee Related CN101021558B (en) | 2007-03-23 | 2007-03-23 | Method for measuring conducting ring contact electric resistance using tricycle method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101021558B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539598B (en) * | 2009-04-14 | 2011-12-28 | 江苏工业学院 | Two-port testing method of alternating current milliohm meter |
| CN102692565B (en) * | 2012-06-14 | 2014-06-04 | 哈尔滨工业大学 | Method for detecting quality of conductive sliding ring |
| US8947101B2 (en) * | 2013-01-04 | 2015-02-03 | Linear Technology Corporation | Method and system for measuring the resistance of a resistive structure |
| CN104635056B (en) * | 2015-02-06 | 2017-10-27 | 华南理工大学 | A kind of method for calculating three-core cable transition joint aluminium hydraulic pressed connecting pipe contact resistance |
| CN104865472B (en) * | 2015-06-01 | 2018-01-12 | 杭州全盛机电科技有限公司 | Wind-power slip ring detecting system and its detection method |
| CN107248496B (en) * | 2017-06-07 | 2019-11-15 | 西安电子科技大学 | The modification method of ohmic contact regions square resistance |
| CN108414837B (en) * | 2018-02-06 | 2019-06-18 | 华南理工大学 | A kind of experimental measurement method of aerial earth wire and preformed armor rods contact port contact resistance |
| CN109655668B (en) * | 2018-12-24 | 2021-01-08 | 陕西航天时代导航设备有限公司 | Method for testing dynamic contact resistance of conductive device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0375375A1 (en) * | 1988-12-21 | 1990-06-27 | British Aerospace Public Limited Company | Loop impedance tester |
| US6448780B1 (en) * | 1996-01-31 | 2002-09-10 | Siemens Ag | Method of calculating a resistance |
-
2007
- 2007-03-23 CN CN200710064688XA patent/CN101021558B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0375375A1 (en) * | 1988-12-21 | 1990-06-27 | British Aerospace Public Limited Company | Loop impedance tester |
| US6448780B1 (en) * | 1996-01-31 | 2002-09-10 | Siemens Ag | Method of calculating a resistance |
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| Publication number | Publication date |
|---|---|
| CN101021558A (en) | 2007-08-22 |
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