JPS6425503U - - Google Patents
Info
- Publication number
- JPS6425503U JPS6425503U JP12065887U JP12065887U JPS6425503U JP S6425503 U JPS6425503 U JP S6425503U JP 12065887 U JP12065887 U JP 12065887U JP 12065887 U JP12065887 U JP 12065887U JP S6425503 U JPS6425503 U JP S6425503U
- Authority
- JP
- Japan
- Prior art keywords
- pneumatic
- outputs
- electro
- electrical signal
- input electrical
- 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
- 230000008713 feedback mechanism Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Servomotors (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
第１図は本考案の第１実施例の概略構成図、第
２図は同上第２実施例の概略構成図、第３図は従
来公知の電空ポジシヨナの概略構成図である。
２１……電空変換部、２４……コントローラ、
２５……方向切換弁、２７……フイードバツク機
構、３０……供給オリフイス、３１……排気オリ
フイス、３２，５４，５６……ポート、３３，５
５，５７……電歪素子。
FIG. 1 is a schematic diagram of a first embodiment of the present invention, FIG. 2 is a schematic diagram of a second embodiment of the same, and FIG. 3 is a schematic diagram of a conventionally known electropneumatic positioner. 21...Electro-pneumatic conversion unit, 24...Controller,
25... Directional switching valve, 27... Feedback mechanism, 30... Supply orifice, 31... Exhaust orifice, 32, 54, 56... Port, 33, 5
5,57...electrostrictive element.
Claims (1)
空気圧に変換して出力する電空変換部と、上記空
気圧によつて空気圧動作部を駆動するとともに、
フイードバツク機構によつて上記空気圧動作部を
入力電気信号に比例して変位させる電空ポジシヨ
ナにおいて、 上記電空変換部を、入力電気信号と、フイード
バツク機構からフイードバツクされる信号との大
小を比較し、これらの信号の大小によつて制御電
圧を出力するコントローラと、圧力空気源に連通
する供給オリフイス、外部に連通する排気オリフ
イス、上記空気圧動作部にアナログ的な空気圧を
出力するポート、及び上記コントローラからの制
御電圧により歪曲して上記２つのオリフイスを開
閉する電歪素子を有する方向切換弁とで構成し、 上記フイードバツク機構を、上記空気圧動作部
の変位を、それに比例する電気信号に変換して出
力するものとして構成した、 ことを特徴とする電空ポジシヨナ。[Claims for Utility Model Registration] An electro-pneumatic conversion section that converts an input electrical signal into pneumatic pressure that is approximately proportional to the input electrical signal and outputs it; and a pneumatic operating section that is driven by the air pressure;
In an electro-pneumatic positioner that uses a feedback mechanism to displace the pneumatic operating section in proportion to an input electrical signal, the electro-pneumatic converting section compares the input electrical signal with a signal fed back from the feedback mechanism, A controller that outputs a control voltage depending on the magnitude of these signals, a supply orifice that communicates with a pressure air source, an exhaust orifice that communicates with the outside, a port that outputs analog air pressure to the air pressure operating section, and a port that outputs analog air pressure from the controller. and a directional control valve having an electrostrictive element that opens and closes the two orifices by distorting the control voltage according to the control voltage, and the feedback mechanism converts the displacement of the pneumatic operating part into an electric signal proportional to the displacement and outputs it. An electro-pneumatic positioner characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987120658U JPH0440002Y2 (en) | 1987-08-06 | 1987-08-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987120658U JPH0440002Y2 (en) | 1987-08-06 | 1987-08-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6425503U true JPS6425503U (en) | 1989-02-13 |
| JPH0440002Y2 JPH0440002Y2 (en) | 1992-09-18 |
Family
ID=31366960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987120658U Expired JPH0440002Y2 (en) | 1987-08-06 | 1987-08-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440002Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4891491A (en) * | 1972-03-08 | 1973-11-28 | ||
| JPS5023753U (en) * | 1973-06-27 | 1975-03-17 | ||
| JPS61160301U (en) * | 1985-03-25 | 1986-10-04 | ||
| JPS6224002A (en) * | 1985-07-23 | 1987-02-02 | Shimadzu Corp | Electropneumatic converter |
-
1987
- 1987-08-06 JP JP1987120658U patent/JPH0440002Y2/ja not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4891491A (en) * | 1972-03-08 | 1973-11-28 | ||
| JPS5023753U (en) * | 1973-06-27 | 1975-03-17 | ||
| JPS61160301U (en) * | 1985-03-25 | 1986-10-04 | ||
| JPS6224002A (en) * | 1985-07-23 | 1987-02-02 | Shimadzu Corp | Electropneumatic converter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0440002Y2 (en) | 1992-09-18 |