JPS55119066A - Measuring device for contact resistance - Google Patents

Measuring device for contact resistance

Info

Publication number
JPS55119066A
JPS55119066A JP2739779A JP2739779A JPS55119066A JP S55119066 A JPS55119066 A JP S55119066A JP 2739779 A JP2739779 A JP 2739779A JP 2739779 A JP2739779 A JP 2739779A JP S55119066 A JPS55119066 A JP S55119066A
Authority
JP
Japan
Prior art keywords
contacts
potential difference
contact
resistor
contact resistance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2739779A
Other languages
Japanese (ja)
Inventor
Yasuhiro Katsube
Shuji Katayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP2739779A priority Critical patent/JPS55119066A/en
Publication of JPS55119066A publication Critical patent/JPS55119066A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE:To enable to accurately determine a deteriorated state of contacts to be measured, by controlling the potential difference between the contacts so as not to exceed a predetermined level even when the contacts are deteriorated to cause an increase in the contact resistance. CONSTITUTION:A reference resistor Rs and a contact resistor Rx for contacts to be measured are series-connected to a variable power source which consists of a variable voltage source Es or a variable current source Is. A control circuit CN is adapted to receive a potential difference Vx occurring between both ends of the contact resistor Rx, and an output value of the variable power source is varied such that the potential difference Vx has a certain value determined by the contact structure. The value of the contact resistor Rx is calculated such as to satisfy an equation Rx= (Vx/Vs)Rs wherein Vs represents a potential difference occurring between both ends of the reference resistor Rs. This permits preventing a film, which is formed due to the oxidation of conacts, from being broken. Accordingly, the state of deterioration of the contacts can be accurately determined.
JP2739779A 1979-03-09 1979-03-09 Measuring device for contact resistance Pending JPS55119066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2739779A JPS55119066A (en) 1979-03-09 1979-03-09 Measuring device for contact resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2739779A JPS55119066A (en) 1979-03-09 1979-03-09 Measuring device for contact resistance

Publications (1)

Publication Number Publication Date
JPS55119066A true JPS55119066A (en) 1980-09-12

Family

ID=12219922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2739779A Pending JPS55119066A (en) 1979-03-09 1979-03-09 Measuring device for contact resistance

Country Status (1)

Country Link
JP (1) JPS55119066A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423168A (en) * 1987-07-20 1989-01-25 Fujitsu Ltd Method for measuring resistance value
WO2011151856A1 (en) * 2010-05-31 2011-12-08 株式会社アドバンテスト Measurement device and measurement method
CN102707153A (en) * 2012-06-28 2012-10-03 哈尔滨工业大学 Contact resistance measuring system and method based on voltage-frequency conversion method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423168A (en) * 1987-07-20 1989-01-25 Fujitsu Ltd Method for measuring resistance value
WO2011151856A1 (en) * 2010-05-31 2011-12-08 株式会社アドバンテスト Measurement device and measurement method
JPWO2011151856A1 (en) * 2010-05-31 2013-07-25 株式会社アドバンテスト Measuring apparatus and measuring method
US9140734B2 (en) 2010-05-31 2015-09-22 Advantest Corporation Measuring apparatus and measuring method
CN102707153A (en) * 2012-06-28 2012-10-03 哈尔滨工业大学 Contact resistance measuring system and method based on voltage-frequency conversion method

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Legal Events

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Effective date: 20040428

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A761 Written withdrawal of application

Effective date: 20060601

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