JPS56142428A - Device for detecting temperature difference - Google Patents
Device for detecting temperature differenceInfo
- 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
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.
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) |
-
1980
- 1980-04-08 JP JP4589980A patent/JPS56142428A/en active Granted
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 |