JPS6469962A - Detecting apparatus of contact resistance - Google Patents

Detecting apparatus of contact resistance

Info

Publication number
JPS6469962A
JPS6469962A JP22725287A JP22725287A JPS6469962A JP S6469962 A JPS6469962 A JP S6469962A JP 22725287 A JP22725287 A JP 22725287A JP 22725287 A JP22725287 A JP 22725287A JP S6469962 A JPS6469962 A JP S6469962A
Authority
JP
Japan
Prior art keywords
component
connector
sensor
generated
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.)
Granted
Application number
JP22725287A
Other languages
Japanese (ja)
Other versions
JP2569595B2 (en
Inventor
Hirohide Sato
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.)
Denso Corp
Original Assignee
NipponDenso Co 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP62227252A priority Critical patent/JP2569595B2/en
Publication of JPS6469962A publication Critical patent/JPS6469962A/en
Application granted granted Critical
Publication of JP2569595B2 publication Critical patent/JP2569595B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To enable the accurate detection of a contact resistance generated in a connector of a temperature sensor or the like, from an electric signal containing an AC component, on the basis of the current dependency thereof, by providing the temperature sensor and the connector and an AC component generator, an AC component detecting circuit, etc. CONSTITUTION:An AC component generator 17 connected to a temperature sensor 4 through a connector 15 so as to give an AC component to the sensor 4, an AC component detector 19 receiving an output signal of the sensor 4 as an input so as to detect the AC component generated due to a resistance element generated in the connector 15, etc. are provided. When an electric signal containing the AC component is given to the sensor 4 and a contact resistance 16 is generated in the connector 15, a voltage drop due to the AC component is caused thereby. The existence of the resistance 16 is detected by detecting said voltage drop. In this way, the resistance 16 can be detected easily and exactly.
JP62227252A 1987-09-10 1987-09-10 Contact resistance detection device for sensor signal input device Expired - Lifetime JP2569595B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62227252A JP2569595B2 (en) 1987-09-10 1987-09-10 Contact resistance detection device for sensor signal input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62227252A JP2569595B2 (en) 1987-09-10 1987-09-10 Contact resistance detection device for sensor signal input device

Publications (2)

Publication Number Publication Date
JPS6469962A true JPS6469962A (en) 1989-03-15
JP2569595B2 JP2569595B2 (en) 1997-01-08

Family

ID=16857903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62227252A Expired - Lifetime JP2569595B2 (en) 1987-09-10 1987-09-10 Contact resistance detection device for sensor signal input device

Country Status (1)

Country Link
JP (1) JP2569595B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499547A (en) * 1991-09-04 1996-03-19 Smc Kabushiki Kaisha Actuator
EP1018637A1 (en) * 1999-01-06 2000-07-12 Honeywell Inc. Apparatus and method for detecting change in the resistance of a connector in a sensor circuit
JP2003005086A (en) * 2001-06-20 2003-01-08 Olympus Optical Co Ltd Microscopic apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5255569A (en) * 1975-10-31 1977-05-07 Hitachi Ltd Contact resistance measuring circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5255569A (en) * 1975-10-31 1977-05-07 Hitachi Ltd Contact resistance measuring circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499547A (en) * 1991-09-04 1996-03-19 Smc Kabushiki Kaisha Actuator
EP1018637A1 (en) * 1999-01-06 2000-07-12 Honeywell Inc. Apparatus and method for detecting change in the resistance of a connector in a sensor circuit
JP2003005086A (en) * 2001-06-20 2003-01-08 Olympus Optical Co Ltd Microscopic apparatus

Also Published As

Publication number Publication date
JP2569595B2 (en) 1997-01-08

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term