JPS5614911A - Sensor circuit calibration device - Google Patents

Sensor circuit calibration device

Info

Publication number
JPS5614911A
JPS5614911A JP9065079A JP9065079A JPS5614911A JP S5614911 A JPS5614911 A JP S5614911A JP 9065079 A JP9065079 A JP 9065079A JP 9065079 A JP9065079 A JP 9065079A JP S5614911 A JPS5614911 A JP S5614911A
Authority
JP
Japan
Prior art keywords
standard
output
multivibrator
integrator
switches
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
JP9065079A
Other languages
Japanese (ja)
Other versions
JPS5740979B2 (en
Inventor
Shigeyuki Morita
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP9065079A priority Critical patent/JPS5614911A/en
Publication of JPS5614911A publication Critical patent/JPS5614911A/en
Publication of JPS5740979B2 publication Critical patent/JPS5740979B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE: To unnecessitate the setting of a standard conditions by setting approximate standard conditions in combination with a standard resistor having a small temperature coeffiecient as compared with a standard thermister and the same resistance value and calibrating the sensor circuit with respect to the difference between the set standard condition and the actual condition.
CONSTITUTION: When the output of a multivibrator 11 is positive, switches 5 and 7 are closed, and switches 6 and 8 are opened. When the output of the multivibrator 11 is negative, the switches are reversed. The duty cycle of the multivibrator 11 is controlled by the output of an integrator 9, and the output average voltage of the integrator 9 is maintained at a predetermined reference potential by a thermistor 13 and standard resistor 14. Accordingly, when a variable resistor 20 is adjusted so that the output average voltage of an integrator 10 becomes a predetermined reference voltage, the variable resistor 20 is adjusted to the resistance value under the standard condition of a thermistor 19.
COPYRIGHT: (C)1981,JPO&Japio
JP9065079A 1979-07-17 1979-07-17 Sensor circuit calibration device Granted JPS5614911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9065079A JPS5614911A (en) 1979-07-17 1979-07-17 Sensor circuit calibration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9065079A JPS5614911A (en) 1979-07-17 1979-07-17 Sensor circuit calibration device

Publications (2)

Publication Number Publication Date
JPS5614911A true JPS5614911A (en) 1981-02-13
JPS5740979B2 JPS5740979B2 (en) 1982-08-31

Family

ID=14004382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9065079A Granted JPS5614911A (en) 1979-07-17 1979-07-17 Sensor circuit calibration device

Country Status (1)

Country Link
JP (1) JPS5614911A (en)

Also Published As

Publication number Publication date
JPS5740979B2 (en) 1982-08-31

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