FR1068829A - AC frequency or speed measuring device - Google Patents

AC frequency or speed measuring device

Info

Publication number
FR1068829A
FR1068829A FR1068829DA FR1068829A FR 1068829 A FR1068829 A FR 1068829A FR 1068829D A FR1068829D A FR 1068829DA FR 1068829 A FR1068829 A FR 1068829A
Authority
FR
France
Prior art keywords
frequency
measuring device
speed measuring
speed
measuring
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
Other languages
French (fr)
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Application granted granted Critical
Publication of FR1068829A publication Critical patent/FR1068829A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Eletrric Generators (AREA)
FR1068829D 1952-09-08 1952-09-08 AC frequency or speed measuring device Expired FR1068829A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1068829T 1952-09-08
GB326213X 1953-03-16

Publications (1)

Publication Number Publication Date
FR1068829A true FR1068829A (en) 1954-07-01

Family

ID=63721191

Family Applications (2)

Application Number Title Priority Date Filing Date
FR65670D Expired FR65670E (en) 1952-09-08
FR1068829D Expired FR1068829A (en) 1952-09-08 1952-09-08 AC frequency or speed measuring device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR65670D Expired FR65670E (en) 1952-09-08

Country Status (4)

Country Link
BE (1) BE527341A (en)
CH (1) CH326213A (en)
DE (1) DE1061436B (en)
FR (2) FR1068829A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE631445A (en) * 1962-05-16

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1601070A (en) * 1922-04-18 1926-09-28 Western Electric Co Wave meter
US2133150A (en) * 1937-09-29 1938-10-11 Gen Electric Frequency meter

Also Published As

Publication number Publication date
BE527341A (en) 1900-01-01
FR65670E (en) 1956-02-29
CH326213A (en) 1957-12-15
DE1061436B (en) 1959-07-16

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