GB151923A - Apparatus for measuring the ratio of the strengths of two currents - Google Patents

Apparatus for measuring the ratio of the strengths of two currents

Info

Publication number
GB151923A
GB151923A GB25022/20A GB2502220A GB151923A GB 151923 A GB151923 A GB 151923A GB 25022/20 A GB25022/20 A GB 25022/20A GB 2502220 A GB2502220 A GB 2502220A GB 151923 A GB151923 A GB 151923A
Authority
GB
United Kingdom
Prior art keywords
coils
measuring
currents
armatures
resistances
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
Application number
GB25022/20A
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.)
Da & Dutilh Soc
Original Assignee
Da & Dutilh Soc
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 Da & Dutilh Soc filed Critical Da & Dutilh Soc
Publication of GB151923A publication Critical patent/GB151923A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
    • G01R5/14—Moving-iron instruments

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

151,923. Soc. Da et Dutilh. Sept. 30, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Electro-magnetic current-meters; resistances, measuring; inductances and capacities, measuring.-An instrument for measuring the ratio of the strength of two currents consists of two coils d, with or without iron cores and pole-pieces, each traversed by one of the currents, and acting oppositely on an uncontrolled armature a rotating about an axis b. The sensitiveness may be varied by varying the angle between the axes of the coils d. In a modification, two armatures, each acted on by one of the coils, are attached to the same spindle. In a further modification, Fig. 5, two curved armatures g attached to opposite ends of a non-magnetic beam h are attracted into solenoids d carrying the currents to be compared. A single curved armature acted on at opposite ends by the two coils may' replace the two armatures g and beam h. The apparatus is applicable for the measurement of resistances, inductances, and capacities, and in conjunction with variable resistances, for level indicators, speed indicators, and signalling apparatus for the transmission of orders &c.
GB25022/20A 1919-09-30 1920-08-30 Apparatus for measuring the ratio of the strengths of two currents Expired GB151923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR151923X 1919-09-30

Publications (1)

Publication Number Publication Date
GB151923A true GB151923A (en) 1922-01-12

Family

ID=8875774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25022/20A Expired GB151923A (en) 1919-09-30 1920-08-30 Apparatus for measuring the ratio of the strengths of two currents

Country Status (1)

Country Link
GB (1) GB151923A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281690A (en) * 1966-10-25 Meter movement including a trans- versely magnetized, eccentrically pivoted permanent magnet disc ro- tor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281690A (en) * 1966-10-25 Meter movement including a trans- versely magnetized, eccentrically pivoted permanent magnet disc ro- tor

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