JPS56136196A - Constant torque generator - Google Patents

Constant torque generator

Info

Publication number
JPS56136196A
JPS56136196A JP3988980A JP3988980A JPS56136196A JP S56136196 A JPS56136196 A JP S56136196A JP 3988980 A JP3988980 A JP 3988980A JP 3988980 A JP3988980 A JP 3988980A JP S56136196 A JPS56136196 A JP S56136196A
Authority
JP
Japan
Prior art keywords
temperature
rotary disc
constant torque
torque
motor
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.)
Pending
Application number
JP3988980A
Other languages
Japanese (ja)
Inventor
Hiroshi Koide
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP3988980A priority Critical patent/JPS56136196A/en
Publication of JPS56136196A publication Critical patent/JPS56136196A/en
Pending 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE:To gain constant torque regardless of temperature fluctuation by giving the correction signals according to the detection temperature of the temperature detector having the same temperature-resistance characteristic to a rotary disc of a constant torque generator to the speed controlling circuit or to the magnetic circuit. CONSTITUTION:When a driving shaft 11 of a motor 1 is made to rotate at a fixed speed, en bloc a magnetic circuit part 13 rotates and a rotary disc 16 relatively crosses the magnetic flux of the gap 15 so that an eddy current generates to receive the torque in proportion to the number of revolutions. On the other hand a temperature detector having the same temperature-resistance characteristic to the rotary disc 16 is arranged near the rotary disc 16 to detect the resistance fluctuation at the temperature fluctuating time as opposed to the reference temperature to give the temperature compensation signals to the speed control circuit of the motor or to the magnet circuit part 13 to gain the fixed torque.
JP3988980A 1980-03-28 1980-03-28 Constant torque generator Pending JPS56136196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3988980A JPS56136196A (en) 1980-03-28 1980-03-28 Constant torque generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3988980A JPS56136196A (en) 1980-03-28 1980-03-28 Constant torque generator

Publications (1)

Publication Number Publication Date
JPS56136196A true JPS56136196A (en) 1981-10-24

Family

ID=12565530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3988980A Pending JPS56136196A (en) 1980-03-28 1980-03-28 Constant torque generator

Country Status (1)

Country Link
JP (1) JPS56136196A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0246195A (en) * 1988-08-05 1990-02-15 Star Micronics Co Ltd Driving control for stepping motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0246195A (en) * 1988-08-05 1990-02-15 Star Micronics Co Ltd Driving control for stepping motor

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