FR2292983A1 - Magnetic measurement of direct currents - by induction method using variable gap magnetic circuit and voltmeter - Google Patents

Magnetic measurement of direct currents - by induction method using variable gap magnetic circuit and voltmeter

Info

Publication number
FR2292983A1
FR2292983A1 FR7438790A FR7438790A FR2292983A1 FR 2292983 A1 FR2292983 A1 FR 2292983A1 FR 7438790 A FR7438790 A FR 7438790A FR 7438790 A FR7438790 A FR 7438790A FR 2292983 A1 FR2292983 A1 FR 2292983A1
Authority
FR
France
Prior art keywords
voltmeter
direct currents
variable gap
magnetic circuit
measurement
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
FR7438790A
Other languages
French (fr)
Other versions
FR2292983B1 (en
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 FR7438790A priority Critical patent/FR2292983A1/en
Publication of FR2292983A1 publication Critical patent/FR2292983A1/en
Application granted granted Critical
Publication of FR2292983B1 publication Critical patent/FR2292983B1/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
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/188—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers comprising rotatable parts, e.g. moving coils
    • 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
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The device enables the measurement of direct currents by using the fact taht they induce an electromotive force at the terminal of a magnetic circuit with a variable gap which surrounds the conductor in which the current flows. The gap may be changed from 'open' to 'closed' very abruptly currents may be measured while in the second position, very weak currents may be measured. The measurement apparatus, voltmeter or ammeter, may have phosphorescent scale markings and pointer and may be carried on a vehicle as a means of testing the state of its engine.
FR7438790A 1974-11-27 1974-11-27 Magnetic measurement of direct currents - by induction method using variable gap magnetic circuit and voltmeter Granted FR2292983A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7438790A FR2292983A1 (en) 1974-11-27 1974-11-27 Magnetic measurement of direct currents - by induction method using variable gap magnetic circuit and voltmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7438790A FR2292983A1 (en) 1974-11-27 1974-11-27 Magnetic measurement of direct currents - by induction method using variable gap magnetic circuit and voltmeter

Publications (2)

Publication Number Publication Date
FR2292983A1 true FR2292983A1 (en) 1976-06-25
FR2292983B1 FR2292983B1 (en) 1977-03-25

Family

ID=9145274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438790A Granted FR2292983A1 (en) 1974-11-27 1974-11-27 Magnetic measurement of direct currents - by induction method using variable gap magnetic circuit and voltmeter

Country Status (1)

Country Link
FR (1) FR2292983A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115825543A (en) * 2022-10-14 2023-03-21 国网四川省电力公司超高压分公司 A rotary vane type non-contact DC voltage measuring instrument and measuring method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115825543A (en) * 2022-10-14 2023-03-21 国网四川省电力公司超高压分公司 A rotary vane type non-contact DC voltage measuring instrument and measuring method

Also Published As

Publication number Publication date
FR2292983B1 (en) 1977-03-25

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Legal Events

Date Code Title Description
ST Notification of lapse