JPS56142428A - Device for detecting temperature difference - Google Patents

Device for detecting temperature difference

Info

Publication number
JPS56142428A
JPS56142428A JP4589980A JP4589980A JPS56142428A JP S56142428 A JPS56142428 A JP S56142428A JP 4589980 A JP4589980 A JP 4589980A JP 4589980 A JP4589980 A JP 4589980A JP S56142428 A JPS56142428 A JP S56142428A
Authority
JP
Japan
Prior art keywords
thermistor
temperature difference
operational amplifier
detecting temperature
thermistors
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
JP4589980A
Other languages
Japanese (ja)
Other versions
JPS6247248B2 (en
Inventor
Koichi Funazaki
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.)
KIYOURITSU DENKOU KK
KYORITSU DENKO KK
Original Assignee
KIYOURITSU DENKOU KK
KYORITSU DENKO KK
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 KIYOURITSU DENKOU KK, KYORITSU DENKO KK filed Critical KIYOURITSU DENKOU KK
Priority to JP4589980A priority Critical patent/JPS56142428A/en
Publication of JPS56142428A publication Critical patent/JPS56142428A/en
Publication of JPS6247248B2 publication Critical patent/JPS6247248B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
    • G01K3/14—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of space

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

PURPOSE:To prevent the large fluctuation of detection output even when the temperature of the atmosphere of two thermistors may change greatly by detecting the temperature difference of the two thermistors with an operational amplifier. CONSTITUTION:A thermistor RH is connected to the inverted input terminal 11 of an operational amplifier 10 and a thermistor RL and a resistor R3 are connected in parallel in a negative feedback circuit 12, while the noninverted input terminal 13 of the operational amplifier 10 is earthed via a resistor R4 and an input bias voltage Vi2 is applied between the terminal of the thermistor RH and the earth.
JP4589980A 1980-04-08 1980-04-08 Device for detecting temperature difference Granted JPS56142428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4589980A JPS56142428A (en) 1980-04-08 1980-04-08 Device for detecting temperature difference

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4589980A JPS56142428A (en) 1980-04-08 1980-04-08 Device for detecting temperature difference

Publications (2)

Publication Number Publication Date
JPS56142428A true JPS56142428A (en) 1981-11-06
JPS6247248B2 JPS6247248B2 (en) 1987-10-07

Family

ID=12732083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4589980A Granted JPS56142428A (en) 1980-04-08 1980-04-08 Device for detecting temperature difference

Country Status (1)

Country Link
JP (1) JPS56142428A (en)

Also Published As

Publication number Publication date
JPS6247248B2 (en) 1987-10-07

Similar Documents

Publication Publication Date Title
JPS56142428A (en) Device for detecting temperature difference
ES8202210A1 (en) Voltage and temperature stabilized constant current source circuit
JPS559143A (en) Temperature detector
GB835551A (en) Improvements in and relating to temperature measuring devices
JPS5537906A (en) Pressure transmission device
JPS5451757A (en) Signal generator
JPS5698913A (en) Temperature control circuit for amplifier
JPS56148070A (en) Device for measuring characteristic of electric circuit
JPS5633563A (en) Measuring device for amplifier
JPS57206984A (en) Absolute value circuit
JPS56137255A (en) Measuring device of multipoint resistance variation
JPS5623008A (en) Bridge amplifier
JPS5587957A (en) Voltage detection circuit
JPS5668806A (en) Temperature control device
JPS56146778A (en) Protecting system for head driving circuit in ink jet printing device
JPS5540901A (en) Photo signal observation unit
JPS57207817A (en) Capacitive converter
JPS5572093A (en) Temperature control system for atomic frequency standard
JPS57200814A (en) Detection amplifier
JPS5338380A (en) Peak detecting circuit
JPS5671314A (en) Differential amplifying circuit
JPS5771076A (en) Integration device
JPS57101405A (en) Power amplifier
JPS54126499A (en) Fire detector
JPS54137944A (en) Signal processing circuit