GB1412502A - Device for electronically detecting pressure changes in a fluid - Google Patents

Device for electronically detecting pressure changes in a fluid

Info

Publication number
GB1412502A
GB1412502A GB4281673A GB4281673A GB1412502A GB 1412502 A GB1412502 A GB 1412502A GB 4281673 A GB4281673 A GB 4281673A GB 4281673 A GB4281673 A GB 4281673A GB 1412502 A GB1412502 A GB 1412502A
Authority
GB
United Kingdom
Prior art keywords
photo
diaphragm
screen
source
fluid
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
GB4281673A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1412502A publication Critical patent/GB1412502A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01L9/0089—Transmitting or indicating the displacement of pistons by electrical, electromechanical, magnetic or electromagnetic 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
    • G01L9/0091—Transmitting or indicating the displacement of liquid mediums by electrical, electromechanical, magnetic or electromagnetic means
    • G01L9/0097—Transmitting or indicating the displacement of liquid mediums by electrical, electromechanical, magnetic or electromagnetic means using photoelectric means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB4281673A 1972-09-25 1973-09-12 Device for electronically detecting pressure changes in a fluid Expired GB1412502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT29641/72A IT967839B (it) 1972-09-25 1972-09-25 Dispositivo per rilevare elettro nicamente variazioni di pressione in un fluido

Publications (1)

Publication Number Publication Date
GB1412502A true GB1412502A (en) 1975-11-05

Family

ID=11228161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4281673A Expired GB1412502A (en) 1972-09-25 1973-09-12 Device for electronically detecting pressure changes in a fluid

Country Status (6)

Country Link
US (1) US3835316A (enExample)
JP (1) JPS4988577A (enExample)
DE (1) DE2347323A1 (enExample)
FR (1) FR2200517B3 (enExample)
GB (1) GB1412502A (enExample)
IT (1) IT967839B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159942A (en) * 1984-06-09 1985-12-11 Michael Roderick Oliver Fluid valve position sensor
GB2237377A (en) * 1989-08-23 1991-05-01 Hoover Plc Liquid level transducer
EP2392894A3 (en) * 2009-01-23 2012-10-24 Acro Associates Fluid control platform, fluid control systems, intelligent fluid control components and optical aperture sensors
US20180238758A1 (en) * 2015-09-29 2018-08-23 Holger Blum Pressure measuring device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166950A (en) * 1977-12-23 1979-09-04 Phillips Petroleum Company Mechanical motion displacement to electrical signal converter
DE3041352A1 (de) * 1980-11-03 1982-06-03 Heinrich Dickersbach GmbH & Co, 5064 Rösrath Als druckwaechter ausgebildetes druckmessgeraet
FR2558256A1 (fr) * 1984-01-13 1985-07-19 Brachet Pierre Detecteur avertisseur d'un defaut de pression d'un liquide ou d'un gaz
DE3520481C1 (de) * 1985-06-07 1986-09-25 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Druckmeßvorrichtung für hydraulischen Schreitausbau
US5177471A (en) * 1990-08-30 1993-01-05 Matsushita Electric Industrial Co., Ltd. Landslide detecting apparatus having improved optical unit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US25258A (en) * 1859-08-30 Hollow grate-bab fob steam-boilers
US3134907A (en) * 1960-02-08 1964-05-26 Gen Dynamics Corp Character generator
US3590261A (en) * 1969-08-06 1971-06-29 Diginetics Inc Optoelectric transducers which utilize a single light source to produce both analog and digital outputs
US3628024A (en) * 1970-04-13 1971-12-14 Holley Carburetor Co Photo-optic transducer using apertured shade and moveable shutter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159942A (en) * 1984-06-09 1985-12-11 Michael Roderick Oliver Fluid valve position sensor
GB2237377A (en) * 1989-08-23 1991-05-01 Hoover Plc Liquid level transducer
EP2392894A3 (en) * 2009-01-23 2012-10-24 Acro Associates Fluid control platform, fluid control systems, intelligent fluid control components and optical aperture sensors
US20180238758A1 (en) * 2015-09-29 2018-08-23 Holger Blum Pressure measuring device
US10801907B2 (en) * 2015-09-29 2020-10-13 Biond Solution AG Pressure measuring device

Also Published As

Publication number Publication date
JPS4988577A (enExample) 1974-08-23
DE2347323A1 (de) 1974-03-28
FR2200517B3 (enExample) 1976-08-20
US3835316A (en) 1974-09-10
FR2200517A1 (enExample) 1974-04-19
IT967839B (it) 1974-03-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee