JPS6469962A - Detecting apparatus of contact resistance - Google Patents
Detecting apparatus of contact resistanceInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5255569A (en) * | 1975-10-31 | 1977-05-07 | Hitachi Ltd | Contact resistance measuring circuit |
-
1987
- 1987-09-10 JP JP62227252A patent/JP2569595B2/en not_active Expired - Lifetime
Patent Citations (1)
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)
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 |