JPH02140377U - - Google Patents
Info
- Publication number
- JPH02140377U JPH02140377U JP4713889U JP4713889U JPH02140377U JP H02140377 U JPH02140377 U JP H02140377U JP 4713889 U JP4713889 U JP 4713889U JP 4713889 U JP4713889 U JP 4713889U JP H02140377 U JPH02140377 U JP H02140377U
- Authority
- JP
- Japan
- Prior art keywords
- thermocouple
- pair
- circuit
- terminals
- measurement
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 2
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図は、本考案の実施例に係る断線検出の回
路図、第２図は、従来の断線検出を示す回路図。
１……熱電対、２……端子、３……計測アンプ
、４……計測アンプ（＋）入力、５……計測アン
プ（−）入力、６……計測アンプ出力、８……抵
抗、９……抵抗、１０……抵抗。
FIG. 1 is a circuit diagram of disconnection detection according to an embodiment of the present invention, and FIG. 2 is a circuit diagram showing conventional disconnection detection. 1...Thermocouple, 2...Terminal, 3...Measuring amplifier, 4...Measuring amplifier (+) input, 5...Measuring amplifier (-) input, 6...Measuring amplifier output, 8...Resistor, 9 ...Resistance, 10...Resistance.
Claims (1)
電対の断線を検出する回路において、熱電対から
の信号を受信する１対の端子と計測アンプの１対
の差動入力端子との間に計測アンプのそれぞれの
入力を等しい抵抗値でしかも１ＭΩ以上の高抵抗
で一方は＋０．６Ｖ、他方は０Ｖへ接続したこと
を特徴とする断線検出回路。 In a circuit that detects disconnection of a thermocouple in a temperature measurement circuit that uses a thermocouple as a sensor, a measurement amplifier is connected between a pair of terminals that receive signals from the thermocouple and a pair of differential input terminals of the measurement amplifier. A disconnection detection circuit characterized in that each input has an equal resistance value and a high resistance of 1 MΩ or more, and one is connected to +0.6V and the other is connected to 0V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4713889U JPH02140377U (en) | 1989-04-21 | 1989-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4713889U JPH02140377U (en) | 1989-04-21 | 1989-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02140377U true JPH02140377U (en) | 1990-11-22 |
Family
ID=31562812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4713889U Pending JPH02140377U (en) | 1989-04-21 | 1989-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02140377U (en) |
-
1989
- 1989-04-21 JP JP4713889U patent/JPH02140377U/ja active Pending
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