GB486101A - Arrangement for indicating and measuring of low revolution numbers - Google Patents

Arrangement for indicating and measuring of low revolution numbers

Info

Publication number
GB486101A
GB486101A GB23553/36A GB2355336A GB486101A GB 486101 A GB486101 A GB 486101A GB 23553/36 A GB23553/36 A GB 23553/36A GB 2355336 A GB2355336 A GB 2355336A GB 486101 A GB486101 A GB 486101A
Authority
GB
United Kingdom
Prior art keywords
measuring
indicating
arrangement
aug
polyphase
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
GB23553/36A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB486101A publication Critical patent/GB486101A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)

Abstract

486,101. Electric signalling systems. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 27, 1936, No. 23553. Void. Convention date, Aug. 28, 1935. Drawings to Specification. [Class 40 (i)] [Also in Group XXXV] Apparatus indicating and measuring low speeds, such as speedometers, is operated by a polyphase tachometer generator energized by a single-phase current or with an unsymmetrical polyphase excitation. This produces a superposed impulse of a frequency sufficient to overcome static friction in the measuring or indicating device.
GB23553/36A 1935-08-28 1936-08-27 Arrangement for indicating and measuring of low revolution numbers Expired GB486101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE486101X 1935-08-28

Publications (1)

Publication Number Publication Date
GB486101A true GB486101A (en) 1938-05-30

Family

ID=20310549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23553/36A Expired GB486101A (en) 1935-08-28 1936-08-27 Arrangement for indicating and measuring of low revolution numbers

Country Status (1)

Country Link
GB (1) GB486101A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481196A (en) * 1943-10-06 1949-09-06 Bulliet Leander Jackson Speed responsive device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481196A (en) * 1943-10-06 1949-09-06 Bulliet Leander Jackson Speed responsive device

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