FR2624982B1 - Dispositif de detection de proximite de champ electrique - Google Patents

Dispositif de detection de proximite de champ electrique

Info

Publication number
FR2624982B1
FR2624982B1 FR8717917A FR8717917A FR2624982B1 FR 2624982 B1 FR2624982 B1 FR 2624982B1 FR 8717917 A FR8717917 A FR 8717917A FR 8717917 A FR8717917 A FR 8717917A FR 2624982 B1 FR2624982 B1 FR 2624982B1
Authority
FR
France
Prior art keywords
electric field
detection device
proximity detection
field proximity
electric
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
FR8717917A
Other languages
English (en)
Other versions
FR2624982A1 (fr
Inventor
Bernard Bouchez
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.)
Catu SAS
Original Assignee
Catu SAS
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 Catu SAS filed Critical Catu SAS
Priority to FR8717917A priority Critical patent/FR2624982B1/fr
Publication of FR2624982A1 publication Critical patent/FR2624982A1/fr
Application granted granted Critical
Publication of FR2624982B1 publication Critical patent/FR2624982B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
FR8717917A 1987-12-22 1987-12-22 Dispositif de detection de proximite de champ electrique Expired - Lifetime FR2624982B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8717917A FR2624982B1 (fr) 1987-12-22 1987-12-22 Dispositif de detection de proximite de champ electrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8717917A FR2624982B1 (fr) 1987-12-22 1987-12-22 Dispositif de detection de proximite de champ electrique

Publications (2)

Publication Number Publication Date
FR2624982A1 FR2624982A1 (fr) 1989-06-23
FR2624982B1 true FR2624982B1 (fr) 1990-04-27

Family

ID=9358153

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8717917A Expired - Lifetime FR2624982B1 (fr) 1987-12-22 1987-12-22 Dispositif de detection de proximite de champ electrique

Country Status (1)

Country Link
FR (1) FR2624982B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2343956B (en) * 1998-09-18 2003-09-03 Safe Flight Instrument In-flight aid for detecting power lines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125751A (en) * 1964-03-17 R- winters
US3168729A (en) * 1962-11-30 1965-02-02 Crane Products Mfg Company Inc Proximity alarm
US4532501A (en) * 1982-02-02 1985-07-30 E. I. Du Pont De Nemours And Company Capacitively coupled machine tool safety system
US4649375A (en) * 1985-10-31 1987-03-10 Fmc Corporation Apparatus for detecting power lines

Also Published As

Publication number Publication date
FR2624982A1 (fr) 1989-06-23

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Legal Events

Date Code Title Description
ST Notification of lapse