IT7949279A0 - Apparecchio per la misura di pressioni in particolare pressioni differenziali in fluidi - Google Patents

Apparecchio per la misura di pressioni in particolare pressioni differenziali in fluidi

Info

Publication number
IT7949279A0
IT7949279A0 IT7949279A IT4927979A IT7949279A0 IT 7949279 A0 IT7949279 A0 IT 7949279A0 IT 7949279 A IT7949279 A IT 7949279A IT 4927979 A IT4927979 A IT 4927979A IT 7949279 A0 IT7949279 A0 IT 7949279A0
Authority
IT
Italy
Prior art keywords
pressures
fluids
measurement
equipment
particular differential
Prior art date
Application number
IT7949279A
Other languages
English (en)
Original Assignee
Foxboro Co
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 Foxboro Co filed Critical Foxboro Co
Publication of IT7949279A0 publication Critical patent/IT7949279A0/it

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
    • G01L9/0058—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of pressure sensitive conductive solid or liquid material, e.g. carbon granules
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
IT7949279A 1978-06-05 1979-06-01 Apparecchio per la misura di pressioni in particolare pressioni differenziali in fluidi IT7949279A0 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/912,655 US4172387A (en) 1978-06-05 1978-06-05 Pressure responsive apparatus

Publications (1)

Publication Number Publication Date
IT7949279A0 true IT7949279A0 (it) 1979-06-01

Family

ID=25432233

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7949279A IT7949279A0 (it) 1978-06-05 1979-06-01 Apparecchio per la misura di pressioni in particolare pressioni differenziali in fluidi

Country Status (8)

Country Link
US (1) US4172387A (it)
JP (1) JPS551584A (it)
CA (1) CA1107982A (it)
DE (1) DE2922566A1 (it)
FR (1) FR2428248A1 (it)
GB (1) GB2022841B (it)
IT (1) IT7949279A0 (it)
NL (1) NL7903887A (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5550131A (en) * 1978-10-06 1980-04-11 Hitachi Ltd Electronic transmitter
US4513194A (en) * 1978-10-30 1985-04-23 Michael Mastromatteo Methods of welding
JPH0693165B2 (ja) * 1982-03-16 1994-11-16 株式会社東芝 マトリクス形表示装置
GB2125167B (en) * 1982-07-15 1986-06-04 Tekflo Ltd Electrical fluid pressure transducer diaphragms
IT1164315B (it) * 1983-07-08 1987-04-08 Kent Tieghi Spa Trasmettitore di pressioni differenziali di fluidi di processo industriali, con compensazione degli effetti delle variazioni di pressione statica
JP3088152B2 (ja) * 1990-11-28 2000-09-18 ビー・エイ・エス・エフ、コーポレーション ヤーン纏絡度判定方法
US5396802A (en) * 1993-08-26 1995-03-14 Viatran Corporation Differential pressure transducer utilizing a variable ferrofluid keeper as an active magnetic circuit element
US6920795B2 (en) * 2002-01-09 2005-07-26 Red Wing Technologies, Inc. Adapter for coupling a sensor to a fluid line
US7415886B2 (en) * 2005-12-20 2008-08-26 Rosemount Inc. Pressure sensor with deflectable diaphragm
US7591184B2 (en) * 2007-03-16 2009-09-22 Rosemount Inc. Industrial pressure sensor having enhanced dielectric fill fluid
US8234927B2 (en) * 2010-06-08 2012-08-07 Rosemount Inc. Differential pressure sensor with line pressure measurement
TWI443321B (zh) * 2011-07-21 2014-07-01 Academia Sinica 用以量測流體的壓力的量測系統及量測系統的製作方法
DE102021122224A1 (de) * 2021-08-27 2023-03-02 Endress+Hauser SE+Co. KG Drucksensor, insbesondere für Drucke von mehr als 100 bar

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL36298C (it) * 1931-08-15 1900-01-01
US3618390A (en) * 1969-10-27 1971-11-09 Rosemount Eng Co Ltd Differential pressure transducer
US3990310A (en) * 1974-09-12 1976-11-09 Honeywell Inc. Closed pressure rebalance system for measuring the rate of fluid flow
US4073191A (en) * 1976-12-02 1978-02-14 Yokogawa Electric Works, Ltd. Differential pressure transducer

Also Published As

Publication number Publication date
FR2428248B1 (it) 1982-12-31
GB2022841A (en) 1979-12-19
NL7903887A (nl) 1979-12-07
GB2022841B (en) 1982-12-22
FR2428248A1 (fr) 1980-01-04
US4172387A (en) 1979-10-30
CA1107982A (en) 1981-09-01
DE2922566A1 (de) 1980-01-03
JPS551584A (en) 1980-01-08

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