CH340071A - Speed difference indicator - Google Patents

Speed difference indicator

Info

Publication number
CH340071A
CH340071A CH340071DA CH340071A CH 340071 A CH340071 A CH 340071A CH 340071D A CH340071D A CH 340071DA CH 340071 A CH340071 A CH 340071A
Authority
CH
Switzerland
Prior art keywords
speed difference
difference indicator
indicator
speed
difference
Prior art date
Application number
Other languages
German (de)
Inventor
Uglum Oddgeir
Original Assignee
Asea 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 filed Critical Asea Ab
Publication of CH340071A publication Critical patent/CH340071A/en

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
    • G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
    • G01P3/60—Devices characterised by the use of electric or magnetic means for comparing two speeds by measuring or comparing frequency of generated currents or voltages
    • 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
    • G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
    • 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
CH340071D 1955-03-23 1956-03-21 Speed difference indicator CH340071A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE340071X 1955-03-23

Publications (1)

Publication Number Publication Date
CH340071A true CH340071A (en) 1959-07-31

Family

ID=20308352

Family Applications (1)

Application Number Title Priority Date Filing Date
CH340071D CH340071A (en) 1955-03-23 1956-03-21 Speed difference indicator

Country Status (4)

Country Link
CH (1) CH340071A (en)
DE (1) DE1009407B (en)
FR (1) FR1144494A (en)
GB (1) GB801495A (en)

Also Published As

Publication number Publication date
DE1009407B (en) 1957-05-29
FR1144494A (en) 1957-10-14
GB801495A (en) 1958-09-17

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