FR2450460A1 - Appareil indicateur de champ electrostatique - Google Patents

Appareil indicateur de champ electrostatique

Info

Publication number
FR2450460A1
FR2450460A1 FR7905574A FR7905574A FR2450460A1 FR 2450460 A1 FR2450460 A1 FR 2450460A1 FR 7905574 A FR7905574 A FR 7905574A FR 7905574 A FR7905574 A FR 7905574A FR 2450460 A1 FR2450460 A1 FR 2450460A1
Authority
FR
France
Prior art keywords
amplifier
field
electrostatic field
input impedance
high input
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.)
Granted
Application number
FR7905574A
Other languages
English (en)
French (fr)
Other versions
FR2450460B3 (enrdf_load_stackoverflow
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7905574A priority Critical patent/FR2450460A1/fr
Publication of FR2450460A1 publication Critical patent/FR2450460A1/fr
Application granted granted Critical
Publication of FR2450460B3 publication Critical patent/FR2450460B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/12—Measuring electrostatic fields or voltage-potential

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
FR7905574A 1979-02-27 1979-02-27 Appareil indicateur de champ electrostatique Granted FR2450460A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7905574A FR2450460A1 (fr) 1979-02-27 1979-02-27 Appareil indicateur de champ electrostatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7905574A FR2450460A1 (fr) 1979-02-27 1979-02-27 Appareil indicateur de champ electrostatique

Publications (2)

Publication Number Publication Date
FR2450460A1 true FR2450460A1 (fr) 1980-09-26
FR2450460B3 FR2450460B3 (enrdf_load_stackoverflow) 1981-12-24

Family

ID=9222731

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905574A Granted FR2450460A1 (fr) 1979-02-27 1979-02-27 Appareil indicateur de champ electrostatique

Country Status (1)

Country Link
FR (1) FR2450460A1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537287A1 (fr) * 1982-12-03 1984-06-08 Singer Edouard Detecteur directionnel de champs electriques
FR2693556A1 (fr) * 1992-07-10 1994-01-14 Ngo Trong Truc Procédé et dispositif de détection d'une perturbation électrique ionique dans une zone déterminée d'un milieu et leur utilisation.
EP3767229A1 (en) * 2005-10-19 2021-01-20 Osmose Utilities Services, Inc. Apparatus and method for detection of stray voltage anomalies

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537287A1 (fr) * 1982-12-03 1984-06-08 Singer Edouard Detecteur directionnel de champs electriques
FR2693556A1 (fr) * 1992-07-10 1994-01-14 Ngo Trong Truc Procédé et dispositif de détection d'une perturbation électrique ionique dans une zone déterminée d'un milieu et leur utilisation.
WO1994001790A1 (fr) * 1992-07-10 1994-01-20 Trong Truc Ngo Detection d'une perturbation electrique ou ionique
EP3767229A1 (en) * 2005-10-19 2021-01-20 Osmose Utilities Services, Inc. Apparatus and method for detection of stray voltage anomalies

Also Published As

Publication number Publication date
FR2450460B3 (enrdf_load_stackoverflow) 1981-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse