JPS6251494U - - Google Patents
Info
- Publication number
- JPS6251494U JPS6251494U JP8678586U JP8678586U JPS6251494U JP S6251494 U JPS6251494 U JP S6251494U JP 8678586 U JP8678586 U JP 8678586U JP 8678586 U JP8678586 U JP 8678586U JP S6251494 U JPS6251494 U JP S6251494U
- Authority
- JP
- Japan
- Prior art keywords
- sensor circuit
- current regulator
- current
- transmission device
- pair
- 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
- 230000008054 signal transmission Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Description
第１図は、従来のピエゾ抵抗圧力伝送器の構成
を示す回路図、第２図は凸指示特性図、第３図は
本考案の一実施例を示し、凹指示特性に対応する
圧力伝送器の構成を示す回路図である。第４図は
凹指示特性図である。
符号の説明、１：圧力センサー（センサー回路
）、２：定電圧回路、３：伝送器電源、４：伝送
器負荷、８：演算増幅器、９：フイードバツク抵
抗Ｒｆ、１０：第１フイードバツク回路、１１：
第２フイードバツク回路、１２：電流変換トラン
ジスタ、１３：伝送器出力信号電流ＩＯ、１４：
圧力センサーの駆動電流ＩＧ、１５：非線型補正
抵抗Ｒａ、１６：抵抗Ｒａ中を流れる電流Ｉｂ、
Ｌ１，Ｌ２：電線。
Fig. 1 is a circuit diagram showing the configuration of a conventional piezoresistive pressure transmitter, Fig. 2 is a convex indication characteristic diagram, and Fig. 3 is an embodiment of the present invention. FIG. FIG. 4 is a concave indication characteristic diagram. Explanation of symbols, 1: Pressure sensor (sensor circuit), 2: Constant voltage circuit, 3: Transmitter power supply, 4: Transmitter load, 8: Operational amplifier, 9: Feedback resistor Rf, 10: First feedback circuit, 11 :
2nd feedback circuit, 12: current conversion transistor, 13: transmitter output signal current IO, 14:
Pressure sensor drive current IG, 15: nonlinear correction resistor Ra, 16: current Ib flowing through resistor Ra,
L 1 , L 2 : Electric wire.
Claims (1)
た一対の電線の他方側に接続された信号伝送装置
において、測定量に応じた電圧を提供するセンサ
ー回路と、センサー回路の提供する前記電圧に応
じた電流を提供する電流調節器と、前記センサー
回路及び電流調節器の駆動電圧を制御する定電圧
回路とが前記一対の電線のうちの一方の電線Ｌ１
に並列接続され、電流調節器の提供する前記電流
が直列に接続された非線型補正抵抗Ｒａ及びフイ
ードバツク抵抗を介して前記一対の電線のうちの
他方の電線Ｌ２に流れるよう構成されており、定
電圧回路の電線Ｌ１に接続されない一端が非線型
補正抵抗Ｒａとフイードバツク抵抗の中間に接続
されかつセンサー回路の電線Ｌ１に接続されない
一端が非線型補正抵抗Ｒａと電流調節器の中間に
接続されることを特徴とする信号伝送装置。 In a signal transmission device connected to the other side of a pair of electric wires with a transmitter power source and a transmitter load connected to one side, a sensor circuit provides a voltage corresponding to a measured quantity, and the voltage provided by the sensor circuit is connected to the signal transmission device. A current regulator that provides a corresponding current and a constant voltage circuit that controls the driving voltage of the sensor circuit and the current regulator are connected to one of the pair of electrical wires L1.
are connected in parallel to each other, and the current provided by the current regulator is configured to flow to the other electric wire L2 of the pair of electric wires through a nonlinear correction resistor Ra and a feedback resistor connected in series, One end not connected to the electric wire L1 of the constant voltage circuit is connected between the nonlinear correction resistor Ra and the feedback resistor, and one end not connected to the electric wire L1 of the sensor circuit is connected between the nonlinear correction resistor Ra and the current regulator. A signal transmission device characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8678586U JPH0142238Y2 (en) | 1986-06-06 | 1986-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8678586U JPH0142238Y2 (en) | 1986-06-06 | 1986-06-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6251494U true JPS6251494U (en) | 1987-03-31 |
| JPH0142238Y2 JPH0142238Y2 (en) | 1989-12-11 |
Family
ID=30943411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8678586U Expired JPH0142238Y2 (en) | 1986-06-06 | 1986-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0142238Y2 (en) |
-
1986
- 1986-06-06 JP JP8678586U patent/JPH0142238Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0142238Y2 (en) | 1989-12-11 |