FR2605413B1 - Capteur de conductivite d'un fluide - Google Patents

Capteur de conductivite d'un fluide

Info

Publication number
FR2605413B1
FR2605413B1 FR878714355A FR8714355A FR2605413B1 FR 2605413 B1 FR2605413 B1 FR 2605413B1 FR 878714355 A FR878714355 A FR 878714355A FR 8714355 A FR8714355 A FR 8714355A FR 2605413 B1 FR2605413 B1 FR 2605413B1
Authority
FR
France
Prior art keywords
fluid
conductivity sensor
conductivity
sensor
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 - Lifetime
Application number
FR878714355A
Other languages
English (en)
Other versions
FR2605413A1 (fr
Inventor
Francis M Miller
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.)
Mission Systems Davenport Inc
Original Assignee
Conax Florida Corp
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 Conax Florida Corp filed Critical Conax Florida Corp
Publication of FR2605413A1 publication Critical patent/FR2605413A1/fr
Application granted granted Critical
Publication of FR2605413B1 publication Critical patent/FR2605413B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Pulmonology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Emergency Management (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Elimination Of Static Electricity (AREA)
  • Generation Of Surge Voltage And Current (AREA)
  • Power Conversion In General (AREA)
FR878714355A 1986-10-20 1987-10-19 Capteur de conductivite d'un fluide Expired - Lifetime FR2605413B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/922,074 US4763077A (en) 1986-10-20 1986-10-20 Sensor circuit responsive to different fluid conductivities

Publications (2)

Publication Number Publication Date
FR2605413A1 FR2605413A1 (fr) 1988-04-22
FR2605413B1 true FR2605413B1 (fr) 1992-05-29

Family

ID=25446468

Family Applications (1)

Application Number Title Priority Date Filing Date
FR878714355A Expired - Lifetime FR2605413B1 (fr) 1986-10-20 1987-10-19 Capteur de conductivite d'un fluide

Country Status (6)

Country Link
US (1) US4763077A (fr)
JP (1) JPS63103656A (fr)
DE (1) DE3735831A1 (fr)
FR (1) FR2605413B1 (fr)
GB (1) GB2197141B (fr)
IL (1) IL84087A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106556743A (zh) * 2016-10-27 2017-04-05 北京航天长征飞行器研究所 一种自动校准多路火工品电路的火工品阻值测量电路

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060860A (en) * 1989-08-18 1991-10-29 Hughes Aircraft Company Paint conductivity measurement system
US5156146A (en) * 1990-04-09 1992-10-20 Conax Florida Corporation Water-activated anti-suffocation protection apparatus
IL97738A0 (en) * 1990-04-09 1992-06-21 Conax Florida Corp Water-activated anti-suffocation protection apparatus
US5719556A (en) * 1995-05-22 1998-02-17 Albin; Robert Liquid level sensor utilizing AC and resistance
US7554453B2 (en) * 2006-12-22 2009-06-30 Thermocline Ventures Llc Water alarm devices, systems and related methods
US11128960B2 (en) 2012-09-25 2021-09-21 Cochlear Limited Electronic devices with protective capacity
WO2022067195A1 (fr) * 2020-09-28 2022-03-31 Harman International Industries, Incorporated Systèmes de casque d'écoute à isolation phonique pour casque

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024440A (en) * 1975-02-13 1977-05-17 Conax Corporation Water activated pressurized gas release device
US4041865A (en) * 1975-06-04 1977-08-16 Seth F. Evans Method and apparatus for detonating explosives
US4165509A (en) * 1977-08-24 1979-08-21 Eaton Corporation Dual liquid level monitor
AT356946B (de) * 1978-08-21 1980-06-10 List Hans Schaltungsanordnung fuer eine elektrochemische messeinrichtung
US4263587A (en) * 1979-04-09 1981-04-21 International Telephone And Telegraph Corporation Liquid level control system
DE3040134A1 (de) * 1980-10-24 1982-07-22 Autoflug Gmbh, 2084 Rellingen Ausloesevorrichtung fuer fallschirmgurte
US4382231A (en) * 1980-11-17 1983-05-03 Conax Corporation Fluid conductivity sensor
US4513248A (en) * 1980-11-17 1985-04-23 Conax Corporation Fluid conductivity sensor
US4389889A (en) * 1981-03-02 1983-06-28 Larson Roger G Apparatus for detecting the presence of water in a fuel tank
DE3223916C1 (de) * 1982-06-26 1983-12-22 Jost 2100 Hamburg Bernhardt Trennvorrichtung für die Halterung einer Atemmaske

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106556743A (zh) * 2016-10-27 2017-04-05 北京航天长征飞行器研究所 一种自动校准多路火工品电路的火工品阻值测量电路

Also Published As

Publication number Publication date
IL84087A0 (en) 1988-03-31
GB8724489D0 (en) 1987-11-25
IL84087A (en) 1991-06-30
GB2197141B (en) 1990-04-04
DE3735831A1 (de) 1988-04-21
GB2197141A (en) 1988-05-11
FR2605413A1 (fr) 1988-04-22
JPS63103656A (ja) 1988-05-09
US4763077A (en) 1988-08-09

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Legal Events

Date Code Title Description
ST Notification of lapse