JPS5757215A - Device for converting quantity of electricity into pneumatic pressure - Google Patents

Device for converting quantity of electricity into pneumatic pressure

Info

Publication number
JPS5757215A
JPS5757215A JP13164380A JP13164380A JPS5757215A JP S5757215 A JPS5757215 A JP S5757215A JP 13164380 A JP13164380 A JP 13164380A JP 13164380 A JP13164380 A JP 13164380A JP S5757215 A JPS5757215 A JP S5757215A
Authority
JP
Japan
Prior art keywords
compressed air
voltage
pressure
tube
electricity
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
JP13164380A
Other languages
Japanese (ja)
Inventor
Ryoichi Nanun
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13164380A priority Critical patent/JPS5757215A/en
Publication of JPS5757215A publication Critical patent/JPS5757215A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

PURPOSE:To improve the accuracy of electricity-pneumatic pressure conversion by varying the flow rate of compressed aie flowing through a venturi tube by means of a solenoid operated valve mechanism to be controlled by a electric signal which is obtained by the conversion of the pressure of the compressed air in said tube. CONSTITUTION:Compressed air is introduced into a venturi tube 11 and the static pressure of compressed air flowing through a throat unit 14 is taken out by an output tube 15. This static pressure is converted into electric signal by a semiconductor pressure sensor 16, amplified by 19 and then converted into feedback voltage Ef. A difference in voltage Ed obtained by comparing feed back voltage Ef with input voltage Ei is amplified 2 and it controls a solenoid operated valve 3 which, in turn, varies the flow-rate Q of compressed air to be guided into through an input port 8 and discharged into the atmosphere through an output port 9.
JP13164380A 1980-09-24 1980-09-24 Device for converting quantity of electricity into pneumatic pressure Pending JPS5757215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13164380A JPS5757215A (en) 1980-09-24 1980-09-24 Device for converting quantity of electricity into pneumatic pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13164380A JPS5757215A (en) 1980-09-24 1980-09-24 Device for converting quantity of electricity into pneumatic pressure

Publications (1)

Publication Number Publication Date
JPS5757215A true JPS5757215A (en) 1982-04-06

Family

ID=15062845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13164380A Pending JPS5757215A (en) 1980-09-24 1980-09-24 Device for converting quantity of electricity into pneumatic pressure

Country Status (1)

Country Link
JP (1) JPS5757215A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0513083U (en) * 1991-07-30 1993-02-19 太陽誘電株式会社 Component mounting jig
EP1258792A1 (en) * 2001-05-16 2002-11-20 Esec Trading S.A. Pressure regulator
US6681797B2 (en) 2001-05-16 2004-01-27 Esec Trading Sa Pressure transducer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0513083U (en) * 1991-07-30 1993-02-19 太陽誘電株式会社 Component mounting jig
EP1258792A1 (en) * 2001-05-16 2002-11-20 Esec Trading S.A. Pressure regulator
US6681797B2 (en) 2001-05-16 2004-01-27 Esec Trading Sa Pressure transducer

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