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GB2021271A - Fluid pressure transducer - Google Patents

Fluid pressure transducer

Info

Publication number
GB2021271A
GB2021271A GB7915066A GB7915066A GB2021271A GB 2021271 A GB2021271 A GB 2021271A GB 7915066 A GB7915066 A GB 7915066A GB 7915066 A GB7915066 A GB 7915066A GB 2021271 A GB2021271 A GB 2021271A
Authority
GB
United Kingdom
Prior art keywords
fluid pressure
fluid
pressure
pressure transducer
resistor
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.)
Granted
Application number
GB7915066A
Other versions
GB2021271B (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.)
Fratelli Borletti SpA
Borletti SpA
Original Assignee
Fratelli Borletti SpA
Borletti SpA
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 Fratelli Borletti SpA, Borletti SpA filed Critical Fratelli Borletti SpA
Publication of GB2021271A publication Critical patent/GB2021271A/en
Application granted granted Critical
Publication of GB2021271B publication Critical patent/GB2021271B/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
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
    • G01L9/0057—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of potentiometers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A device for determining and remotely transmitting a fluid pressure, of the type comprising a resilient membrane (11) which is deformed by said fluid and is arranged to operate, by way of an amplifying mechanism, the slider (44) of a variable resistor (61) connected into the supply circuit of an indicating instrument is described. The main feature of said device is that said resistor (61) is of the thick film type, which supports increased contact pressure by the brush. Use of a graphite contact element 57 prevents it becoming oxidised if the device is not used for a certain period of time. The device is applied to measuring lubricating oil pressure in an internal combustion engine. <IMAGE>
GB7915066A 1978-05-16 1979-05-01 Fluid pressure transducer Expired GB2021271B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO1978U53324U IT7853324U1 (en) 1978-05-16 1978-05-16 Device for remote sensing and transmission of fluid pressure

Publications (2)

Publication Number Publication Date
GB2021271A true GB2021271A (en) 1979-11-28
GB2021271B GB2021271B (en) 1982-09-29

Family

ID=11281796

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7915066A Expired GB2021271B (en) 1978-05-16 1979-05-01 Fluid pressure transducer

Country Status (3)

Country Link
FR (1) FR2428831A3 (en)
GB (1) GB2021271B (en)
IT (1) IT7853324U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850222A (en) * 1987-08-07 1989-07-25 Hokuriki Electric Industry, Co., Ltd. Sensor unit
EP0383165A3 (en) * 1989-02-15 1991-04-10 Stewart Warner Corporation Pressure sender
EP0514356A3 (en) * 1991-05-16 1994-01-05 Siceb Spa
CZ299254B6 (en) * 1998-04-06 2008-05-28 Ranco Controls Limited Pressure sensor provided with an actuator introduced between diaphragm and transducer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559897B1 (en) * 1984-02-16 1987-04-30 Jaeger DEVICE FOR MEASURING THE PRESSURE OF A FLUID COMPRISING AT LEAST TWO ELASTIC MEMBRANES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850222A (en) * 1987-08-07 1989-07-25 Hokuriki Electric Industry, Co., Ltd. Sensor unit
EP0383165A3 (en) * 1989-02-15 1991-04-10 Stewart Warner Corporation Pressure sender
EP0514356A3 (en) * 1991-05-16 1994-01-05 Siceb Spa
CZ299254B6 (en) * 1998-04-06 2008-05-28 Ranco Controls Limited Pressure sensor provided with an actuator introduced between diaphragm and transducer

Also Published As

Publication number Publication date
FR2428831A3 (en) 1980-01-11
FR2428831B3 (en) 1980-05-16
IT7853324U1 (en) 1979-11-16
GB2021271B (en) 1982-09-29
IT7853324V0 (en) 1978-05-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee