CA917948A - Differential pressure measuring apparatus - Google Patents

Differential pressure measuring apparatus

Info

Publication number
CA917948A
CA917948A CA083897A CA83897A CA917948A CA 917948 A CA917948 A CA 917948A CA 083897 A CA083897 A CA 083897A CA 83897 A CA83897 A CA 83897A CA 917948 A CA917948 A CA 917948A
Authority
CA
Canada
Prior art keywords
differential pressure
measuring apparatus
pressure measuring
differential
pressure
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
CA083897A
Other languages
English (en)
Inventor
A. Weaver John
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Application granted granted Critical
Publication of CA917948A publication Critical patent/CA917948A/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
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
    • G01L19/0618—Overload protection
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
    • G01L19/0627—Protection against aggressive medium in general
    • G01L19/0645—Protection against aggressive medium in general using isolation membranes, specially adapted for protection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/14—Housings
    • G01L19/145—Housings with stress relieving means
    • G01L19/146—Housings with stress relieving means using flexible element between the transducer and the support
    • 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
    • G01L9/0052—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Measuring Fluid Pressure (AREA)
CA083897A 1969-08-20 1970-05-27 Differential pressure measuring apparatus Expired CA917948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85160869A 1969-08-20 1969-08-20

Publications (1)

Publication Number Publication Date
CA917948A true CA917948A (en) 1973-01-02

Family

ID=25311198

Family Applications (1)

Application Number Title Priority Date Filing Date
CA083897A Expired CA917948A (en) 1969-08-20 1970-05-27 Differential pressure measuring apparatus

Country Status (5)

Country Link
US (1) US3559488A (de)
CA (1) CA917948A (de)
DE (1) DE2040786A1 (de)
FR (1) FR2058951A5 (de)
GB (1) GB1263039A (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780588A (en) * 1972-03-31 1973-12-25 Honeywell Inc Differential pressure responsive apparatus
US4086815A (en) * 1975-07-24 1978-05-02 Fuji Electric Co., Ltd. Device for use in sensing pressures
DE2712846A1 (de) * 1976-03-24 1977-11-24 Ict Instr Inc Messumformer zum messen von druckunterschieden
CA1078217A (en) * 1976-03-31 1980-05-27 Robert C. Whitehead (Jr.) Force transducing cantilever beam and pressure transducer incorporating it
CA1077294A (en) * 1976-05-03 1980-05-13 Honeywell Inc. Pressure transmitter with simplified pressure sensing head
US4072058A (en) * 1976-05-03 1978-02-07 Honeywell Inc. Differential pressure transmitter with pressure sensor protection
US4073191A (en) * 1976-12-02 1978-02-14 Yokogawa Electric Works, Ltd. Differential pressure transducer
DE2657933C3 (de) * 1976-12-21 1984-01-05 Siemens AG, 1000 Berlin und 8000 München Differenzdruck-Meßumformer mit Überlastschutz
US4345476A (en) * 1980-07-25 1982-08-24 Bourns Instruments, Inc. Differential pressure transducer with high compliance, constant stress cantilever beam
IT1194839B (it) * 1980-12-22 1988-09-28 Bourns Instr Inc Apparecchio per misurare la pressione in particolare di un fluido che scorre attraverso un orifizio o simile
US4385525A (en) * 1981-09-18 1983-05-31 Dwyer Instruments, Inc. Strain gauge pressure transducer
EP0197130A1 (de) * 1984-10-12 1986-10-15 Ametek, Inc. Druckwandler
GB2175398A (en) * 1985-05-21 1986-11-26 Stc Plc Pressure transducer
US4776219A (en) * 1987-04-06 1988-10-11 Jaromir Friedrich Pressure transducer
US4823604A (en) * 1987-05-22 1989-04-25 Pall Corporation Pressure transducer assembly
DE10004614A1 (de) 2000-02-03 2001-08-16 Siemens Ag Drucksensor zum Erfassen des Druckes einer Flüssigkeit
FR2926883B1 (fr) 2008-01-24 2010-02-26 Tokheim Holding Bv Dispositif capteur de pression adapte a des atmospheres explosives ou corrosives
DE102008021091A1 (de) 2008-04-28 2009-10-29 Epcos Ag Drucksensor
EP2498678B1 (de) * 2009-11-09 2016-03-23 Swisstom AG Druckmesssystem, sensoranordnung zur druckmessung und verfahren zur messung eines drucks
DE102011102837A1 (de) 2011-05-30 2012-12-06 Epcos Ag Drucksensor und Verfahren zur Herstellung eines Drucksensors
NO339004B1 (no) * 2012-05-13 2016-11-07 Electrical Subsea & Drilling As Sensorhode for måling av trykk
CN103239217A (zh) * 2013-04-02 2013-08-14 上海道生医疗科技有限公司 防过载的脉搏跳动血压波强度传感器
US9759625B2 (en) * 2015-09-18 2017-09-12 Tecsis Gmbh Differential pressure transducer assembly with overload protection
CN110332973A (zh) * 2019-01-29 2019-10-15 荆门宏图延晟机械制造有限公司 一种高静压过载保护弹差压液位计
CN115342965A (zh) * 2022-09-21 2022-11-15 内蒙古工业大学 一种电容式气体压力传感器结构

Also Published As

Publication number Publication date
US3559488A (en) 1971-02-02
FR2058951A5 (de) 1971-05-28
DE2040786A1 (de) 1971-02-25
GB1263039A (en) 1972-02-09

Similar Documents

Publication Publication Date Title
CA917948A (en) Differential pressure measuring apparatus
CA944579A (en) Differential pressure transducer
CA940734A (en) Pressure measuring transducer
AU1935470A (en) Blood pressure measuring apparatus
AU2151270A (en) Differential conductivity measuring apparatus
CA918446A (en) Apparatus for measuring dynamic loss angle
AU460219B2 (en) Differential pressure indicating apparatus
CA941928A (en) Servoed meter apparatus
CA924645A (en) Fluidic condition sensing apparatus
AU3173871A (en) Pressure indicating apparatus
AU3530671A (en) Differential pressure indicating device
CA825069A (en) Differential pressure forming apparatus
CA789244A (en) Differential pressure measuring device
CA875085A (en) Differential pressure measuring apparatus
CA818824A (en) Pressure measuring device
CA812396A (en) Measuring apparatus
CA829160A (en) Measuring apparatus
AU425765B2 (en) Differential pressure measuring apparatus
AU439239B2 (en) Distance measuring apparatus
AU4807468A (en) Differential pressure responsive apparatus
CA848692A (en) Differential pressure responsive apparatus
CA803747A (en) Pressure detecting instrument
CA961661A (en) Differential pressure transducer
AU429246B2 (en) Flow measurement apparatus
CA792990A (en) Pressure measuring apparatus