JPH044249U - - Google Patents
Info
- Publication number
- JPH044249U JPH044249U JP4544790U JP4544790U JPH044249U JP H044249 U JPH044249 U JP H044249U JP 4544790 U JP4544790 U JP 4544790U JP 4544790 U JP4544790 U JP 4544790U JP H044249 U JPH044249 U JP H044249U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- bridge circuits
- bridge
- current source
- constant current
- 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
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
第１図は本考案の一実施例としての構成を示す
回路図、第２図は第１図に対応する従来の回路図
である。
Ｒａ，Ｒａ１〜ＲＡｎ……測温抵抗体、Ｒ１１
，Ｒ１２，Ｒ１３〜Ｒｎ１，Ｒｎ２，Ｒｎ３……
ブリツジ抵抗、ＩＳ１，ＩＳ２……定電流源、Ｓ
Ｗ，ＳＷ１〜ＳＷｎ，ＳＷＡ，ＳＷＡ１〜ＳＷＡ
ｎ……スイツチ。
FIG. 1 is a circuit diagram showing a configuration as an embodiment of the present invention, and FIG. 2 is a conventional circuit diagram corresponding to FIG. 1. Ra, Ra1 to RAn... resistance temperature sensor, R11
, R12, R13~Rn1, Rn2, Rn3...
Bridge resistance, IS1, IS2...constant current source, S
W, SW1~SWn, SWA, SWA1~SWA
n...Switch.
Claims (1)
共通の定電流源から前記ブリツジ回路に電源を供
給し、この電流供給によつて得られる前記の各ブ
リツジ回路の出力電力を該ブリツジ回路毎に設け
られた第１のスイツチを順次選択投入して、共通
の電圧検出回路に入力する多点入力温度測定装置
において、 前記の各ブリツジ回路ごとに設けられ、前記定
電流源から当該のブリツジ回路に供給される電流
を開閉する第２のスイツチと、 前記第１のスイツチの選択投入に同期して、こ
の第１のスイツチに対応する前記第２のスイツチ
を順次選択投入する手段とを備えたことを特徴と
する多点入力温度測定装置。[Scope of claim for utility model registration] Equipped with multiple bridge circuits including resistance temperature sensors,
Power is supplied to the bridge circuits from a common constant current source, and the output power of each of the bridge circuits obtained by this current supply is sequentially selected and turned on by a first switch provided for each bridge circuit. , a multi-point input temperature measurement device that inputs input to a common voltage detection circuit, comprising: a second switch provided for each of the bridge circuits, which opens and closes the current supplied from the constant current source to the bridge circuit; A multi-point input temperature measuring device comprising means for sequentially selectively turning on the second switch corresponding to the first switch in synchronization with the selective turning on of the first switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4544790U JPH044249U (en) | 1990-04-27 | 1990-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4544790U JPH044249U (en) | 1990-04-27 | 1990-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH044249U true JPH044249U (en) | 1992-01-16 |
Family
ID=31559632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4544790U Pending JPH044249U (en) | 1990-04-27 | 1990-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH044249U (en) |
-
1990
- 1990-04-27 JP JP4544790U patent/JPH044249U/ja active Pending