JPS57200701A - Electro-pneumatic transducer - Google Patents

Electro-pneumatic transducer

Info

Publication number
JPS57200701A
JPS57200701A JP8366581A JP8366581A JPS57200701A JP S57200701 A JPS57200701 A JP S57200701A JP 8366581 A JP8366581 A JP 8366581A JP 8366581 A JP8366581 A JP 8366581A JP S57200701 A JPS57200701 A JP S57200701A
Authority
JP
Japan
Prior art keywords
piezoelectric elements
elements
electrical signal
energized
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
Application number
JP8366581A
Other languages
Japanese (ja)
Inventor
Masaru Mitake
Shinjiro Tomioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Shimazu Seisakusho KK
Original Assignee
Shimadzu Corp
Shimazu Seisakusho KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp, Shimazu Seisakusho KK filed Critical Shimadzu Corp
Priority to JP8366581A priority Critical patent/JPS57200701A/en
Publication of JPS57200701A publication Critical patent/JPS57200701A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
    • F15B5/003—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities characterised by variation of the pressure in a nozzle or the like, e.g. nozzle-flapper system

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

PURPOSE:To simplify the structure of the titled transducer, and to make it small and inexpensive, by laminating a plurality of sets of paired piezoelectric elements, and changing the back pressure of an air nozzle by the deformation of the laminated piezoelectric elements thereby the elements are used as an electrical signal-displacement transforming element. CONSTITUTION:A pair of piezoelectric elements 1a, 1b are elements for converting an electrical signal to displacement, their surfaces become concave when a voltage is energized, and they are integrally laminated. When a voltage is energized to them, the surfaces of the piezoelectric elements 1a, 1b are displaced so that the distance from them to the tip of the air nozzle 2 decreases. As a result, the back pressure of the nozzle is increased, and an air pressure corresponding to this increment is outputted from a pilot valve 3. This output air pressure is also introduced to a pressure sensor 4, is converted into an electrical signal, and is inputted together with an input signal to an operational amplifier 6. If the gain of the adjuster comprising the amplifier 6 is increased, a required feed back signal can be taken out.
JP8366581A 1981-05-30 1981-05-30 Electro-pneumatic transducer Pending JPS57200701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8366581A JPS57200701A (en) 1981-05-30 1981-05-30 Electro-pneumatic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8366581A JPS57200701A (en) 1981-05-30 1981-05-30 Electro-pneumatic transducer

Publications (1)

Publication Number Publication Date
JPS57200701A true JPS57200701A (en) 1982-12-09

Family

ID=13808751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8366581A Pending JPS57200701A (en) 1981-05-30 1981-05-30 Electro-pneumatic transducer

Country Status (1)

Country Link
JP (1) JPS57200701A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011701A (en) * 1983-03-28 1985-01-22 エデイスン・インタ−ナシヨナル，インコ−ポレイテツド Electricity-air pressure converting control apparatus
JPS60231001A (en) * 1984-05-01 1985-11-16 Shoketsu Kinzoku Kogyo Co Ltd Unit for converting electric signal to air pressure
JPS61160301U (en) * 1985-03-25 1986-10-04
JPH04119202A (en) * 1990-09-10 1992-04-20 Yamatake Honeywell Co Ltd Electropneumatic converter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011701A (en) * 1983-03-28 1985-01-22 エデイスン・インタ−ナシヨナル，インコ−ポレイテツド Electricity-air pressure converting control apparatus
JPS60231001A (en) * 1984-05-01 1985-11-16 Shoketsu Kinzoku Kogyo Co Ltd Unit for converting electric signal to air pressure
JPS61160301U (en) * 1985-03-25 1986-10-04
JPH04119202A (en) * 1990-09-10 1992-04-20 Yamatake Honeywell Co Ltd Electropneumatic converter

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