JPS6485585A - Ultrasonic motor - Google Patents

Ultrasonic motor

Info

Publication number
JPS6485585A
JPS6485585A JP62239316A JP23931687A JPS6485585A JP S6485585 A JPS6485585 A JP S6485585A JP 62239316 A JP62239316 A JP 62239316A JP 23931687 A JP23931687 A JP 23931687A JP S6485585 A JPS6485585 A JP S6485585A
Authority
JP
Japan
Prior art keywords
machine arm
arm current
ultrasonic motor
held constant
revolutions
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.)
Granted
Application number
JP62239316A
Other languages
Japanese (ja)
Other versions
JPH0667233B2 (en
Inventor
Masahiro Takada
Takashi Fukunaga
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62239316A priority Critical patent/JPH0667233B2/en
Publication of JPS6485585A publication Critical patent/JPS6485585A/en
Publication of JPH0667233B2 publication Critical patent/JPH0667233B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
    • H02N2/14—Drive circuits; Control arrangements or methods

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

PURPOSE:To enable controlling the number of revolutions precisely by driving an ultrasonic motor so that a machine arm current is held constant according to a machine arm current reference. CONSTITUTION:An ultrasonic motor 4 is driven by a closed loop composed of a machine arm current comparator 2, an ultrasonic motor driving circuit 3, said ultrasonic motor 4 and a machine arm current detector 6, in such manner that a machine arm current 9 is held constant. Said constant value is determined by a machine arm current reference value 8. Further, a closed loop is also constituted by the use of a speed comparator 1 and a speed detector 5 to control the number of revolutions by varying said machine arm current reference value 8 so that a speed signal 10 is exactly held constant.
JP62239316A 1987-09-24 1987-09-24 Ultrasonic motor device Expired - Lifetime JPH0667233B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62239316A JPH0667233B2 (en) 1987-09-24 1987-09-24 Ultrasonic motor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62239316A JPH0667233B2 (en) 1987-09-24 1987-09-24 Ultrasonic motor device

Publications (2)

Publication Number Publication Date
JPS6485585A true JPS6485585A (en) 1989-03-30
JPH0667233B2 JPH0667233B2 (en) 1994-08-24

Family

ID=17042901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62239316A Expired - Lifetime JPH0667233B2 (en) 1987-09-24 1987-09-24 Ultrasonic motor device

Country Status (1)

Country Link
JP (1) JPH0667233B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03256578A (en) * 1990-03-06 1991-11-15 Seiko Instr Inc Ultrasonic wave motor
JP2006519971A (en) * 2003-03-07 2006-08-31 スワゲロック カンパニー Valve with adjustment stop

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03256578A (en) * 1990-03-06 1991-11-15 Seiko Instr Inc Ultrasonic wave motor
JP2006519971A (en) * 2003-03-07 2006-08-31 スワゲロック カンパニー Valve with adjustment stop

Also Published As

Publication number Publication date
JPH0667233B2 (en) 1994-08-24

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