CA1074144A - Pressure-electrical signal conversion means - Google Patents

Pressure-electrical signal conversion means

Info

Publication number
CA1074144A
CA1074144A CA272,683A CA272683A CA1074144A CA 1074144 A CA1074144 A CA 1074144A CA 272683 A CA272683 A CA 272683A CA 1074144 A CA1074144 A CA 1074144A
Authority
CA
Canada
Prior art keywords
pressure
pressure receiving
receiving plate
plate
photosensitive unit
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.)
Expired
Application number
CA272,683A
Other languages
English (en)
French (fr)
Inventor
Keijiro Mori
Hiroshi Horii
Isamu Okuda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Priority claimed from JP2150176A external-priority patent/JPS52104172A/ja
Priority claimed from JP7870876A external-priority patent/JPS534487A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of CA1074144A publication Critical patent/CA1074144A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
    • G01L9/0077—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light
    • 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
    • G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Automation & Control Theory (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measuring Fluid Pressure (AREA)
CA272,683A 1976-02-26 1977-02-25 Pressure-electrical signal conversion means Expired CA1074144A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2150176A JPS52104172A (en) 1976-02-26 1976-02-26 Piezo-electric conversion unit
JP7870876A JPS534487A (en) 1976-07-01 1976-07-01 Pressure-electricity transducer

Publications (1)

Publication Number Publication Date
CA1074144A true CA1074144A (en) 1980-03-25

Family

ID=26358572

Family Applications (1)

Application Number Title Priority Date Filing Date
CA272,683A Expired CA1074144A (en) 1976-02-26 1977-02-25 Pressure-electrical signal conversion means

Country Status (4)

Country Link
US (1) US4122337A (enExample)
CA (1) CA1074144A (enExample)
FR (1) FR2342617A1 (enExample)
GB (1) GB1569360A (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189724A (en) * 1978-02-24 1980-02-19 Donaldson Company, Inc. Electric restriction indicator with a contactless switch device for indicating a restriction in filter elements
SE414549B (sv) * 1978-07-19 1980-08-04 Claesson Per Goran Anordning for att alstra en elektrisk utsignal i beroende av ett mekaniskt organs instellningslege
US4283140A (en) * 1979-06-25 1981-08-11 Waters Associates, Inc. Spatially homogenizing optical modulator
US4289963A (en) * 1979-09-17 1981-09-15 Robertshaw Controls Company Control device and method of making the same
US4320294A (en) * 1979-09-17 1982-03-16 Robertshaw Controls Company Control device and method of making the same
FR2498754A2 (fr) * 1981-01-27 1982-07-30 Mecilec Sa Dispositif de mesure de pression fonctionnant en numerique
US4484071A (en) * 1982-03-12 1984-11-20 Webster Peter John Method and apparatus for determining the location of graduated marks in measuring applications
US4531414A (en) * 1984-05-21 1985-07-30 Kraus Robert A Linear displacement transducer device
US5130556A (en) * 1990-11-07 1992-07-14 Eaton Corporation Photoelectric fiber thickness and edge position sensor
US5132531A (en) * 1990-11-07 1992-07-21 Eaton Corporation Translational position sensing apparatus employing rotating element and PSD
US5262641A (en) * 1991-12-30 1993-11-16 Honeywell Inc. Compensation mechanism for a pressure sensor having counterweight mechanism
US5252826A (en) * 1991-12-30 1993-10-12 Honeywell Inc. Differential pressure utilizing opto-reflective sensor
DE10114751C1 (de) * 2001-03-22 2002-11-21 Gerhard Kurz Drucksensor
DE10146199C2 (de) * 2001-09-13 2003-12-24 Prettl Rolf Druckmeßanordnung
US8178830B2 (en) * 2006-02-17 2012-05-15 Jec Optics, Inc. Optical pressure switch, door operating system and method
DE102006039521B4 (de) * 2006-08-23 2009-12-17 Siemens Ag Druckdose zur Betätigung mechanischer Systeme
DE102010005792B3 (de) * 2010-01-25 2011-06-16 Innovations-Transfer Uphoff Gmbh &.Co.Kg Druckkraftmesseinrichtung
CN108332822B (zh) * 2018-02-27 2023-08-25 吉林大学 用于干涉式光纤水位监测系统中的水位探头及系统及方法
CN114674401B (zh) * 2022-03-24 2024-05-14 京东方科技集团股份有限公司 一种重量测试设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258601A (en) * 1966-06-28 Photosensitive variable resistance device
US1579536A (en) * 1924-08-15 1926-04-06 Hodgson John Lawrence Flexible diaphragm for use in the measurement of fluid pressure
FR1187259A (fr) * 1957-11-25 1959-09-09 Chantiers De Latlantique Dispositif pour transformer un déplacement en courant électrique de mesure ou de contrôle
US3159750A (en) * 1962-10-01 1964-12-01 Eugene I Kazan Photoelectric pressure transducer
US3191440A (en) * 1963-02-11 1965-06-29 Electro Optical Systems Inc Pressure gauge instrument
US3612881A (en) * 1969-04-14 1971-10-12 Cessna Aircraft Co Relative movement detector
US3624404A (en) * 1970-02-16 1971-11-30 Westinghouse Air Brake Co Electropneumatic relay valve device using radiation-sensitive means
US3645140A (en) * 1970-06-15 1972-02-29 Dwyer Instr Pressure gauge
DE2311676A1 (de) * 1973-03-09 1974-09-26 Intermadox Ag Weg-spannungswandler
GB1481166A (en) * 1973-07-12 1977-07-27 Hughes Micro Electronics Ltd Circuit arrangement for use in a transducer

Also Published As

Publication number Publication date
US4122337A (en) 1978-10-24
FR2342617A1 (fr) 1977-09-23
FR2342617B1 (enExample) 1984-11-16
GB1569360A (en) 1980-06-11

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Legal Events

Date Code Title Description
MKEX Expiry