JPS5618752A - Driving method for sensor - Google Patents
Driving method for sensorInfo
- Publication number
- JPS5618752A JPS5618752A JP9364079A JP9364079A JPS5618752A JP S5618752 A JPS5618752 A JP S5618752A JP 9364079 A JP9364079 A JP 9364079A JP 9364079 A JP9364079 A JP 9364079A JP S5618752 A JPS5618752 A JP S5618752A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- electric heater
- oscillator
- intermittent pulse
- time constant
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
PURPOSE: To efficiently drive a sensor having an electric heater of a small thermal time constant by making the oscillator output an intermittent pulse to heat the electric heater, and detecting the sensor output within the heating time in synchronization with the intermittent pulse.
CONSTITUTION: A circuit comprises a monostable multivibrator 1, oscillator 2 to output a high frequency above 1kHz, transformer 3, sensor 4, electric heater 4a provided on the sensor 4, and detection circuit 5. The monostable multivibrator 1 generates an intermittent pulse signal A to cause the oscillator 2 to generate a high frequency intermittent pulse B of above 10mm/sec., which is supplied for the electric heater 4a through the transformer 3. Thus, setting the oscillation frequency of the oscillator 2 at above 10kHz permits the electric heater 4a having a thermal time constant of below 1mm/sec. to be heated by the frequency one or more digit higher than the thermal time constant. Therefore, no detection function is damaged.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9364079A JPS5618752A (en) | 1979-07-25 | 1979-07-25 | Driving method for sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9364079A JPS5618752A (en) | 1979-07-25 | 1979-07-25 | Driving method for sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5618752A true JPS5618752A (en) | 1981-02-21 |
JPH024856B2 JPH024856B2 (en) | 1990-01-30 |
Family
ID=14087947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9364079A Granted JPS5618752A (en) | 1979-07-25 | 1979-07-25 | Driving method for sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5618752A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59143945A (en) * | 1983-02-07 | 1984-08-17 | Richo Seiki Kk | Gas detecting device |
JPS59143946A (en) * | 1983-02-07 | 1984-08-17 | Richo Seiki Kk | Gas detecting device |
JPH01206248A (en) * | 1988-02-12 | 1989-08-18 | Figaro Eng Inc | Detecting method of imperfect combustion and apparatus therefor |
JPH01206252A (en) * | 1988-02-12 | 1989-08-18 | Figaro Eng Inc | Method of detecting gas and apparatus therefor |
JPH01316652A (en) * | 1988-02-02 | 1989-12-21 | Figaro Eng Inc | Gas detector |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8293179B2 (en) * | 2006-07-14 | 2012-10-23 | Fis Inc. | Gas detection apparatus |
-
1979
- 1979-07-25 JP JP9364079A patent/JPS5618752A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59143945A (en) * | 1983-02-07 | 1984-08-17 | Richo Seiki Kk | Gas detecting device |
JPS59143946A (en) * | 1983-02-07 | 1984-08-17 | Richo Seiki Kk | Gas detecting device |
JPH04219B2 (en) * | 1983-02-07 | 1992-01-06 | Rikoo Seiki Kk | |
JPH041301B2 (en) * | 1983-02-07 | 1992-01-10 | Ricoh Seiki Co Ltd | |
JPH01316652A (en) * | 1988-02-02 | 1989-12-21 | Figaro Eng Inc | Gas detector |
JPH01206248A (en) * | 1988-02-12 | 1989-08-18 | Figaro Eng Inc | Detecting method of imperfect combustion and apparatus therefor |
JPH01206252A (en) * | 1988-02-12 | 1989-08-18 | Figaro Eng Inc | Method of detecting gas and apparatus therefor |
Also Published As
Publication number | Publication date |
---|---|
JPH024856B2 (en) | 1990-01-30 |
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