JPS5544665A - Method and device for temperature control - Google Patents
Method and device for temperature controlInfo
- Publication number
- JPS5544665A JPS5544665A JP11836978A JP11836978A JPS5544665A JP S5544665 A JPS5544665 A JP S5544665A JP 11836978 A JP11836978 A JP 11836978A JP 11836978 A JP11836978 A JP 11836978A JP S5544665 A JPS5544665 A JP S5544665A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- bridge
- featuring
- output voltage
- target
- 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.)
- Pending
Links
Landscapes
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
Abstract
PURPOSE: To reduce the primary and secondary delay of the control system caused by the thermal factors by using the temperature controlled body itself as the self- heating heater and also making it serve the temperature sensor for detection of the temperature.
CONSTITUTION: Bridge circuit 1 consists of temperature controlled body R1 formed by the resistor featuring a high temperature coefficient, resistor R2 featuring an extremely small temperature coefficient in comparison with the temperature coefficient of R1 plus resistors R3 and R4 featuring optional temperature cofficients each. Thus output voltage e1 at the unbalanced time of bridge 1 is supplied to differential amplifier 2, and at the same time the input voltage of bridge 1 is controlled by output voltage e0 of differential amplifier 2. Resistivity R3/R4 is set so that bridge 1 may be balanced with the intrinsic resistance of body R1 corresponding to its target temperature. As a result, the output voltage of amplifier 2 becomes zero at the moment when the temperature of R1 reaches the target temperature, and the temperature of R1 is kept at the target level by the control of the self-heating current of R1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11836978A JPS5544665A (en) | 1978-09-26 | 1978-09-26 | Method and device for temperature control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11836978A JPS5544665A (en) | 1978-09-26 | 1978-09-26 | Method and device for temperature control |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5544665A true JPS5544665A (en) | 1980-03-29 |
Family
ID=14734992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11836978A Pending JPS5544665A (en) | 1978-09-26 | 1978-09-26 | Method and device for temperature control |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5544665A (en) |
-
1978
- 1978-09-26 JP JP11836978A patent/JPS5544665A/en active Pending
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