FR2664978B1 - Dispositif de detection et de transmission d'un micro signal pneumatique pour emission de signal analogique ou numerique. - Google Patents

Dispositif de detection et de transmission d'un micro signal pneumatique pour emission de signal analogique ou numerique.

Info

Publication number
FR2664978B1
FR2664978B1 FR9009226A FR9009226A FR2664978B1 FR 2664978 B1 FR2664978 B1 FR 2664978B1 FR 9009226 A FR9009226 A FR 9009226A FR 9009226 A FR9009226 A FR 9009226A FR 2664978 B1 FR2664978 B1 FR 2664978B1
Authority
FR
France
Prior art keywords
transmission
analog
detection
digital signal
signal
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 - Fee Related
Application number
FR9009226A
Other languages
English (en)
Other versions
FR2664978A1 (fr
Inventor
Guy Boutin
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.)
REVOREG STE CIVILE ETUDES RECH
Original Assignee
REVOREG STE CIVILE ETUDES RECH
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 REVOREG STE CIVILE ETUDES RECH filed Critical REVOREG STE CIVILE ETUDES RECH
Priority to FR9009226A priority Critical patent/FR2664978B1/fr
Priority to EP91913289A priority patent/EP0539458A1/fr
Priority to AU82376/91A priority patent/AU8237691A/en
Priority to PCT/FR1991/000592 priority patent/WO1992001917A1/fr
Priority to US07/969,271 priority patent/US5343753A/en
Publication of FR2664978A1 publication Critical patent/FR2664978A1/fr
Application granted granted Critical
Publication of FR2664978B1 publication Critical patent/FR2664978B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01L9/0091—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
    • 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
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/12—Alarms or signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Volume Flow (AREA)
FR9009226A 1990-07-19 1990-07-19 Dispositif de detection et de transmission d'un micro signal pneumatique pour emission de signal analogique ou numerique. Expired - Fee Related FR2664978B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR9009226A FR2664978B1 (fr) 1990-07-19 1990-07-19 Dispositif de detection et de transmission d'un micro signal pneumatique pour emission de signal analogique ou numerique.
EP91913289A EP0539458A1 (fr) 1990-07-19 1991-07-18 Dispositif de detection d'une variation de pression a controler
AU82376/91A AU8237691A (en) 1990-07-19 1991-07-18 Device for detecting a variation in a pressure being monitored
PCT/FR1991/000592 WO1992001917A1 (fr) 1990-07-19 1991-07-18 Dispositif de detection d'une variation de pression a controler
US07/969,271 US5343753A (en) 1990-07-19 1991-07-18 Device for detecting a variation in a pressure being monitored by sensing displacement of a ball in a tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9009226A FR2664978B1 (fr) 1990-07-19 1990-07-19 Dispositif de detection et de transmission d'un micro signal pneumatique pour emission de signal analogique ou numerique.

Publications (2)

Publication Number Publication Date
FR2664978A1 FR2664978A1 (fr) 1992-01-24
FR2664978B1 true FR2664978B1 (fr) 1994-09-23

Family

ID=9398898

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9009226A Expired - Fee Related FR2664978B1 (fr) 1990-07-19 1990-07-19 Dispositif de detection et de transmission d'un micro signal pneumatique pour emission de signal analogique ou numerique.

Country Status (5)

Country Link
US (1) US5343753A (fr)
EP (1) EP0539458A1 (fr)
AU (1) AU8237691A (fr)
FR (1) FR2664978B1 (fr)
WO (1) WO1992001917A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5515711A (en) * 1995-06-26 1996-05-14 Mks Instruments, Inc. Pressure measurement and calibration apparatus using gravity-induced diaphragm deflection
DE20307912U1 (de) * 2003-05-19 2003-09-25 JVK Filtration Systems GmbH, 91166 Georgensgmünd Leckageanzeiger für ein Filterelement einer Filterpresse
US7821417B2 (en) * 2006-06-29 2010-10-26 Magna International Inc. Method and system for detecting the presence of parts in an assembly fixture
AU2014235664C1 (en) 2013-03-15 2018-04-26 Brian M. Wiseman Directional differential pressure detector
CN104949791B (zh) * 2015-06-23 2017-06-27 江苏大学 一种平衡式气体压力测压方法与装置
CN105157906B (zh) * 2015-08-28 2017-09-29 中国运载火箭技术研究院 一种飞行器高速飞行过程中微压力测量装置及测量方法
CA3044708A1 (fr) * 2016-11-23 2018-05-31 Brian M. Wiseman Detecteur de pression differentielle directionnelle
CN109115395B (zh) * 2018-07-11 2020-06-23 河南中烟工业有限责任公司 一种组合式空调器过滤筒两侧压差检测结构
US11415594B2 (en) 2019-05-30 2022-08-16 AirFlow Direction, Inc. Directional differential pressure detector for indicating potential or actual directional air flow
US11460481B2 (en) 2019-05-30 2022-10-04 AirFlow Directions, Inc. Directional differential pressure detector having a differential pressure set point indicator
US11423918B2 (en) 2019-05-30 2022-08-23 AirFlow Direction, Inc. Directional differential pressure detector
CN110260935B (zh) * 2019-07-29 2024-08-09 盛密科技(上海)有限公司 一种流量检测装置
US11415475B2 (en) 2019-10-22 2022-08-16 AirFlow Direction, Inc. Directional differential pressure detector with improved reliability

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2403897A (en) * 1945-06-13 1946-07-16 Sheffield Corp Leakage gauging device
JPS5016321U (fr) * 1973-06-11 1975-02-21
JPS522457A (en) * 1975-06-24 1977-01-10 Sankyo Kogyo Kk Method of detecting flow
US4583484A (en) * 1983-07-27 1986-04-22 Erwin Freund Pressure-change indicator
DE3618230A1 (de) * 1986-05-30 1987-12-03 Meyer Fa Rud Otto Optischer messwertaufnehmer
FR2647576A1 (fr) * 1989-05-29 1990-11-30 Revo Air Ste Civile Etu Rech Detecteur de respiration et d'arret respiratoire

Also Published As

Publication number Publication date
US5343753A (en) 1994-09-06
EP0539458A1 (fr) 1993-05-05
FR2664978A1 (fr) 1992-01-24
AU8237691A (en) 1992-02-18
WO1992001917A1 (fr) 1992-02-06

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Legal Events

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