KR860007637A - 바이모프 헤드의 바이모프 구동장치 - Google Patents

바이모프 헤드의 바이모프 구동장치 Download PDF

Info

Publication number
KR860007637A
KR860007637A KR1019860001669A KR860001669A KR860007637A KR 860007637 A KR860007637 A KR 860007637A KR 1019860001669 A KR1019860001669 A KR 1019860001669A KR 860001669 A KR860001669 A KR 860001669A KR 860007637 A KR860007637 A KR 860007637A
Authority
KR
South Korea
Prior art keywords
bimorph
signal
circuit
head
drive signal
Prior art date
Application number
KR1019860001669A
Other languages
English (en)
Other versions
KR940005559B1 (ko
Inventor
미쯔기 요시히로
Original Assignee
소니 가부시끼가이샤
오오가노리오
소니가부시끼가이샤
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 소니 가부시끼가이샤, 오오가노리오, 소니가부시끼가이샤 filed Critical 소니 가부시끼가이샤
Publication of KR860007637A publication Critical patent/KR860007637A/ko
Application granted granted Critical
Publication of KR940005559B1 publication Critical patent/KR940005559B1/ko

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
    • G11B5/592—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

내용 없음

Description

바이모프 헤드의 바이모프 구동장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 바이모프 헤드의 바이모프 구동장치의 일실시예를 도시하는 불럭선도.
제2도는 상기 제1도를 설명하는 플로우챠트.
제3도는 상기 제1도의 브릿지 회로에 대한 상세도.
* 도면의 주요부분에 대한 부호의 설명
1 : 헤드 2 : 바이모프 3 : 스트렌게지
H : 바이모프레드 5 : 브릿지회로 6 : 차동증폭기
8 : 합성기 9 : 비교회로 10 : 마이크로 프로세서
11 : 구동신호 발생수단 12 : 감쇠진동 신호 발생수단
13 : 바이어스 전압 발생수단 14 : 전압 유지 수단
15 : 제어수단 SW1, SW2및 16 : 스위치

Claims (1)

  1. 바이모프에 헤드가 설치됨과 동시에, 상기 바이모프에 스트렌게지가 설치되어서 구성되는 바이모프 헤드와, 상기한 바이모프에 구동신호 및 감쇠 진폭 신호를 전환 공급하는 구동신호 발생수단 및 감쇠 진동신호 발생수단과,
    상기한 스트렌게지의 외검출 전압이 공급되고, 그 출력이 상기 구동신호에서 감산되는 차동 증폭기와,
    상기 바이모프에 대해, 상기 구동신호를 공급하기에 앞서, 상기한 감쇠 진동 신호가 공급된 후의 상기 차동증폭기의 출력이 0으로 되는 소정의 바이어스 전압을 발생하는 바이어스 전압발생 수단을 구비하며,
    상기 구동신호가 상기한 바이모프에 공급될 때에는, 상기 차동 증폭기에 상기한 소정의 바이어스 전압이 주어지도록 한 것을 특징으로 하는 바이모프 헤드의 바이모프 구동장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860001669A 1985-03-12 1986-03-10 바이모프 헤드의 바이모프 구동장치 KR940005559B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP48688 1985-03-12
JP60048688A JPH0695377B2 (ja) 1985-03-12 1985-03-12 バイモルフヘツドのバイモルフ駆動装置

Publications (2)

Publication Number Publication Date
KR860007637A true KR860007637A (ko) 1986-10-15
KR940005559B1 KR940005559B1 (ko) 1994-06-20

Family

ID=12810255

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860001669A KR940005559B1 (ko) 1985-03-12 1986-03-10 바이모프 헤드의 바이모프 구동장치

Country Status (8)

Country Link
US (1) US4663555A (ko)
EP (1) EP0197663B1 (ko)
JP (1) JPH0695377B2 (ko)
KR (1) KR940005559B1 (ko)
AT (1) ATE79192T1 (ko)
AU (1) AU597880B2 (ko)
CA (1) CA1241440A (ko)
DE (1) DE3686281T2 (ko)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE33568E (en) * 1984-12-21 1991-04-09 General Electric Company Piezoelectric ceramic switching devices and systems and methods of making the same
US4914673A (en) * 1985-10-07 1990-04-03 Minolta Camera Kabushiki Kaisha Radiation thermometer
US4851871A (en) * 1986-03-17 1989-07-25 Copal Company Limited Driving unit using electrostrictive element
FR2608825B1 (fr) * 1986-12-19 1994-12-30 Enertec Dispositif pour la detection de la position d'une tete magnetique
US4792715A (en) * 1987-11-16 1988-12-20 Barsky Michael F Robot gripper control system using PVDF piezoelectric sensors
US4933784A (en) * 1988-10-31 1990-06-12 Ampex Corporation Automatic head position tracking system for video signals recorded in a segmented format
US5034645A (en) * 1989-01-13 1991-07-23 Digital Equipment Corporation Micro-beam tactile sensor for the measurement of vertical position displacement
US5051646A (en) * 1989-04-28 1991-09-24 Digital Instruments, Inc. Method of driving a piezoelectric scanner linearly with time
US4939401A (en) * 1989-07-17 1990-07-03 General Electric Company Method and system for activation of a piezoelectric bender switch
JPH041949A (ja) * 1990-04-18 1992-01-07 Canon Inc 情報入力及び／または取出し装置
JP3030574B2 (ja) * 1990-08-16 2000-04-10 キヤノン株式会社 微小変位型情報検知探針素子及びこれを用いた走査型トンネル顕微鏡、原子間力顕微鏡、情報処理装置
JP3041118B2 (ja) * 1991-09-30 2000-05-15 株式会社東芝 磁気記録再生装置
US6707230B2 (en) * 2001-05-29 2004-03-16 University Of North Carolina At Charlotte Closed loop control systems employing relaxor ferroelectric actuators
US7141911B2 (en) * 2002-11-15 2006-11-28 Matsushita Electric Industrial Co., Ltd. Driving method of piezoelectric actuator, piezoelectric actuator, and disk recording and reproducing apparatus using the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093885A (en) * 1976-03-19 1978-06-06 Ampex Corporation Transducer assembly vibration sensor
US4099211A (en) * 1976-09-13 1978-07-04 Ampex Corporation Positionable transducing mounting structure and driving system therefor
JPS5492308A (en) * 1977-12-29 1979-07-21 Sony Corp Head tracking device in recorder-reproducer
NL7805802A (nl) * 1978-05-29 1979-12-03 Philips Nv Inrichting voor het besturen van een pieezo-elektrisch positioneringselement.
JPS5668922A (en) * 1979-11-06 1981-06-09 Sony Corp Magnetic recording and reproducing device
JPS56105322A (en) * 1980-01-19 1981-08-21 Matsushita Electric Ind Co Ltd Driving device of electromechanical conversion element
JPS58171715A (ja) * 1982-04-02 1983-10-08 Sony Corp 再生装置
JPS5994103A (ja) * 1982-11-19 1984-05-30 Nec Corp 電気機械変換器の制御装置
JPH0626039B2 (ja) * 1983-10-31 1994-04-06 ソニー株式会社 磁気ヘツドの変位駆動装置

Also Published As

Publication number Publication date
AU597880B2 (en) 1990-06-14
AU5449286A (en) 1986-09-18
US4663555A (en) 1987-05-05
DE3686281T2 (de) 1993-02-25
EP0197663B1 (en) 1992-08-05
DE3686281D1 (de) 1992-09-10
KR940005559B1 (ko) 1994-06-20
JPS61208614A (ja) 1986-09-17
ATE79192T1 (de) 1992-08-15
JPH0695377B2 (ja) 1994-11-24
EP0197663A3 (en) 1989-05-03
EP0197663A2 (en) 1986-10-15
CA1241440A (en) 1988-08-30

Similar Documents

Publication Publication Date Title
KR860007637A (ko) 바이모프 헤드의 바이모프 구동장치
ES2139617T3 (es) Circuito de sonda de facoemulsificacion con dispositivo de excitacion de conmutacion.
DE69232389T2 (de) Informationsverarbeitungsgerät und Rastertunnelmikroskop
KR880011747A (ko) 진단기능이 부착된 광 디스크 기록 재생 장치
KR920015364A (ko) 출력 버퍼회로
US4390847A (en) Muting device
KR870008152A (ko) 연소제어장치
KR900017024A (ko) 정보 신호 기록장치
KR920701975A (ko) 시크 제어 장치
KR960038722A (ko) 액정의 공통전극 구동회로
JPS57211562A (en) Gas rate sensor
AU3257093A (en) Process and arrangement for reducing vibrations caused by jolts in drives having mechanical arrangements capable of vibrating
KR970023354A (ko) 내부 전압 레벨 보상회로
KR960024607A (ko) 액정표시장치의 공통전압 보상 구동장치 및 방법과 크로스토크 보상 구동장치
KR890015602A (ko) 자기 기록 장치
US3546354A (en) Automatic synchronization of pitches in electronic musical instruments with magnetic recording-reproducing apparatus
FR2387457A1 (fr) Dispositif de controle haute tension
CA2035996A1 (en) Position displacement detecting apparatus
KR880013138A (ko) 더블데크 카세트 회로의 집접회로
SU589692A1 (ru) Устройство громкоговор щей св зи с управлением голосом
KR960028200A (ko) 진폭 제한 기능을 갖는 영상신호 증폭장치
JPH03189807A (ja) 空気ばね式除振台の制振装置
KR910008676A (ko) 광헤드의 위상차 계산회로
KR970050311A (ko) 광디스크재생장치의 트래킹 서보 제어회로
KR950012315A (ko) 건반압력 제어 장치

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20050531

Year of fee payment: 12

EXPY Expiration of term