DE3686281D1 - Verfahren und vorrichtung zur ueberwachung von bimorphverzerrungsdetektoren. - Google Patents
Verfahren und vorrichtung zur ueberwachung von bimorphverzerrungsdetektoren.Info
- Publication number
- DE3686281D1 DE3686281D1 DE8686301697T DE3686281T DE3686281D1 DE 3686281 D1 DE3686281 D1 DE 3686281D1 DE 8686301697 T DE8686301697 T DE 8686301697T DE 3686281 T DE3686281 T DE 3686281T DE 3686281 D1 DE3686281 D1 DE 3686281D1
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- bimorph
- bimorph leaf
- detector
- signal
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title 1
- 238000012544 monitoring process Methods 0.000 title 1
- 238000013016 damping Methods 0.000 abstract 3
Classifications
-
- 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
-
- 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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
---|---|
DE3686281D1 true DE3686281D1 (de) | 1992-09-10 |
DE3686281T2 DE3686281T2 (de) | 1993-02-25 |
Family
ID=12810255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686301697T Expired - Lifetime DE3686281T2 (de) | 1985-03-12 | 1986-03-10 | Verfahren und vorrichtung zur ueberwachung von bimorphverzerrungsdetektoren. |
Country Status (8)
Country | Link |
---|---|
US (1) | US4663555A (de) |
EP (1) | EP0197663B1 (de) |
JP (1) | JPH0695377B2 (de) |
KR (1) | KR940005559B1 (de) |
AT (1) | ATE79192T1 (de) |
AU (1) | AU597880B2 (de) |
CA (1) | CA1241440A (de) |
DE (1) | DE3686281T2 (de) |
Families Citing this family (14)
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)
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 |
-
1985
- 1985-03-12 JP JP60048688A patent/JPH0695377B2/ja not_active Expired - Lifetime
-
1986
- 1986-03-04 US US06/836,159 patent/US4663555A/en not_active Expired - Lifetime
- 1986-03-07 CA CA000503508A patent/CA1241440A/en not_active Expired
- 1986-03-10 EP EP86301697A patent/EP0197663B1/de not_active Expired - Lifetime
- 1986-03-10 DE DE8686301697T patent/DE3686281T2/de not_active Expired - Lifetime
- 1986-03-10 KR KR1019860001669A patent/KR940005559B1/ko not_active IP Right Cessation
- 1986-03-10 AT AT86301697T patent/ATE79192T1/de not_active IP Right Cessation
- 1986-03-11 AU AU54492/86A patent/AU597880B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ATE79192T1 (de) | 1992-08-15 |
DE3686281T2 (de) | 1993-02-25 |
EP0197663A2 (de) | 1986-10-15 |
AU597880B2 (en) | 1990-06-14 |
JPH0695377B2 (ja) | 1994-11-24 |
EP0197663B1 (de) | 1992-08-05 |
EP0197663A3 (en) | 1989-05-03 |
KR940005559B1 (ko) | 1994-06-20 |
KR860007637A (ko) | 1986-10-15 |
JPS61208614A (ja) | 1986-09-17 |
AU5449286A (en) | 1986-09-18 |
US4663555A (en) | 1987-05-05 |
CA1241440A (en) | 1988-08-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |