JPS63196801U - - Google Patents
Info
- Publication number
- JPS63196801U JPS63196801U JP8956087U JP8956087U JPS63196801U JP S63196801 U JPS63196801 U JP S63196801U JP 8956087 U JP8956087 U JP 8956087U JP 8956087 U JP8956087 U JP 8956087U JP S63196801 U JPS63196801 U JP S63196801U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- flapper
- pressure
- input current
- air pressure
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Servomotors (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
第１図は本考案を電空ポジシヨナに適用した場
合の１実施例を示すブロツク図、第２図は第１図
における入力処理手段の詳細を示すブロツク図、
第３図は本考案を電空変換器に適用する場合の要
部構成を示すブロツク図、第４図は従来の電空ポ
ジシヨナの構成を示す斜視図、第５図は第４図に
おける電空ポジシヨナの入力電流に対する出力空
気圧の関係を示す特性図、第６図は第４図におけ
る構成をブロツク図で表現した説明図である。
２……トルクモータ、３……フラツパ、６……
ノズル、８……パイロツトリレー、９……バルブ
、１３……レンジアジヤスタ、１６……入力処理
手段、１７……差動増幅器、１８……圧電アクチ
ユエータ、１９，２１……変位―電気信号変換器
、２２……圧力―電気信号変換器。
FIG. 1 is a block diagram showing one embodiment of the present invention applied to an electropneumatic positioner, and FIG. 2 is a block diagram showing details of the input processing means in FIG. 1.
Figure 3 is a block diagram showing the configuration of main parts when the present invention is applied to an electro-pneumatic converter, Figure 4 is a perspective view showing the configuration of a conventional electro-pneumatic positioner, and Figure 5 is the electro-pneumatic positioner shown in Figure 4. FIG. 6 is a characteristic diagram showing the relationship between the input current and the output air pressure of the positioner. FIG. 6 is an explanatory diagram representing the configuration in FIG. 4 in a block diagram. 2...Torque motor, 3...Flatspa, 6...
Nozzle, 8...Pilot relay, 9...Valve, 13...Range adjuster, 16...Input processing means, 17...Differential amplifier, 18...Piezoelectric actuator, 19, 21...Displacement-electrical signal conversion 22...Pressure-electrical signal converter.
Claims (1)
力変換機構において、前記入力電流を用いて内部
の回路電源を作ると共に前記入力電流に対する前
記空気圧のレンジ調整を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
差を演算する差動増幅手段と、この差動増幅手段
の出力に関連した電圧で駆動される一対の圧電ア
クチユエータと、この圧電アクチユエータがフラ
ツパの一端に対向して固定され他端にノズルがこ
のフラツパに対向して配置され絞りを介して給気
圧が供給されたノズルフラツパ機構と、このノズ
ルフラツパ機構のノズル背圧に対応する前記空気
圧を出力するパイロツトリレーとを具備し前記空
気圧に対応する電圧信号を前記フイードバツク信
号として帰還することを特徴とする電気／圧力変
換機構。 In an electricity/pressure conversion mechanism that outputs air pressure corresponding to an input current, the input processing means uses the input current to generate an internal circuit power supply and adjusts the range of the air pressure with respect to the input current; A differential amplifying means for calculating the difference between the output and the feedback signal, a pair of piezoelectric actuators driven by a voltage related to the output of the differential amplifying means, and the piezoelectric actuators are fixed opposite to one end of the flapper. The other end is provided with a nozzle flapper mechanism in which a nozzle is arranged opposite to this flapper and supply pressure is supplied through a throttle, and a pilot relay that outputs the air pressure corresponding to the nozzle back pressure of this nozzle flapper mechanism. An electric/pressure conversion mechanism characterized in that a voltage signal corresponding to the voltage signal is fed back as the feedback signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8956087U JPS63196801U (en) | 1987-06-10 | 1987-06-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8956087U JPS63196801U (en) | 1987-06-10 | 1987-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63196801U true JPS63196801U (en) | 1988-12-19 |
Family
ID=30948656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8956087U Pending JPS63196801U (en) | 1987-06-10 | 1987-06-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63196801U (en) |
-
1987
- 1987-06-10 JP JP8956087U patent/JPS63196801U/ja active Pending