JPS62190101U - - Google Patents
Info
- Publication number
- JPS62190101U JPS62190101U JP7794486U JP7794486U JPS62190101U JP S62190101 U JPS62190101 U JP S62190101U JP 7794486 U JP7794486 U JP 7794486U JP 7794486 U JP7794486 U JP 7794486U JP S62190101 U JPS62190101 U JP S62190101U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- displacement
- electric signal
- electro
- stem
- 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
- 238000006073 displacement reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Servomotors (AREA)
Description
第１図は本考案の一実施例を示す構成図、第２
図は第１図に示す構成の詳細を説明するブロツク
線図、第３図は本考案における変位―電気信号変
換部の内部構成を示すブロツク図、第４図は本考
案の第２の実施例を示すブロツク図、第５図は本
考案の第３の実施例を示すブロツク図、第６図は
従来の電空ポジシヨナの構成を示す構成図である
。
１，１′……入力端子、２……トルクモータ、
８……パイロツトリレー、９……バルブ、９０３
……バルブステム、１６……入力処理手段、１７
……差動増幅器、１９……変位―電気信号変換器
、４００，４０２，４０３……制御部。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure is a block diagram explaining details of the configuration shown in Figure 1, Figure 3 is a block diagram showing the internal configuration of the displacement-electrical signal converter in the present invention, and Figure 4 is a second embodiment of the present invention. FIG. 5 is a block diagram showing a third embodiment of the present invention, and FIG. 6 is a block diagram showing the structure of a conventional electro-pneumatic positioner. 1, 1'...Input terminal, 2...Torque motor,
8...Pilot relay, 9...Valve, 903
... Valve stem, 16 ... Input processing means, 17
... Differential amplifier, 19 ... Displacement-electrical signal converter, 400, 402, 403 ... Control section.
Claims (1)
力電流に対応させて制御するための電空ポジシヨ
ナにおいて、前記入力電流を電圧信号あるいはデ
ジタル信号に変換する入力処理手段とこの入力処
理手段の出力とフイードバツク信号との差に基づ
いて前記バルブを駆動する空気圧をパイロツトリ
レーを介して制御するアクチユエータ手段とを収
容する制御部と、前記バルブのステムの変位を入
力して電気信号の形で出力する変位―電気信号変
換部とからなり、この変位―電気信号変換部を前
記バルブ側に固定するようにしたことを特徴とす
る電空ポジシヨナ。 An electro-pneumatic positioner for controlling the position of a stem of a valve driven by pneumatic pressure in response to an input current, an input processing means for converting the input current into a voltage signal or a digital signal, and an output and feedback of the input processing means. a control unit containing actuator means for controlling the air pressure for driving the valve via a pilot relay based on the difference between the valve and the valve; and a displacement unit for inputting the displacement of the stem of the valve and outputting it in the form of an electric signal. An electro-pneumatic positioner comprising an electric signal converter, the displacement-electric signal converter being fixed to the valve side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7794486U JPS62190101U (en) | 1986-05-23 | 1986-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7794486U JPS62190101U (en) | 1986-05-23 | 1986-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62190101U true JPS62190101U (en) | 1987-12-03 |
Family
ID=30926429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7794486U Pending JPS62190101U (en) | 1986-05-23 | 1986-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62190101U (en) |
-
1986
- 1986-05-23 JP JP7794486U patent/JPS62190101U/ja active Pending