IT1082173B - Dispositivo per rivelare le vibrazioni dei trasduttori di lettura di registratori video - Google Patents
Dispositivo per rivelare le vibrazioni dei trasduttori di lettura di registratori videoInfo
- Publication number
- IT1082173B IT1082173B IT48438/77A IT4843877A IT1082173B IT 1082173 B IT1082173 B IT 1082173B IT 48438/77 A IT48438/77 A IT 48438/77A IT 4843877 A IT4843877 A IT 4843877A IT 1082173 B IT1082173 B IT 1082173B
- Authority
- IT
- Italy
- Prior art keywords
- vibrations
- detect
- video recorders
- reading transducers
- transducers
- Prior art date
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
-
- 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
- H10N30/101—Piezoelectric or electrostrictive devices with electrical and mechanical input and output, e.g. having combined actuator and sensor parts
-
- 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
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
- H10N30/2041—Beam type
- H10N30/2042—Cantilevers, i.e. having one fixed end
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Control Of Position Or Direction (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66865376A | 1976-03-19 | 1976-03-19 | |
US05/677,683 US4093885A (en) | 1976-03-19 | 1976-04-16 | Transducer assembly vibration sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1082173B true IT1082173B (it) | 1985-05-21 |
Family
ID=27099968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT48438/77A IT1082173B (it) | 1976-03-19 | 1977-03-11 | Dispositivo per rivelare le vibrazioni dei trasduttori di lettura di registratori video |
Country Status (10)
Country | Link |
---|---|
US (1) | US4093885A (it) |
JP (1) | JPS5818686B2 (it) |
AT (1) | AT388465B (it) |
BE (1) | BE852622A (it) |
CA (1) | CA1125909A (it) |
DE (2) | DE2711976B2 (it) |
FR (1) | FR2345050A1 (it) |
GB (1) | GB1579856A (it) |
IT (1) | IT1082173B (it) |
NL (1) | NL7702989A (it) |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4288824A (en) * | 1975-10-14 | 1981-09-08 | Sony Corporation | Deflectable transducer mounting with damper for video signal reproducing apparatus |
JPS52152712A (en) * | 1976-06-15 | 1977-12-19 | Victor Co Of Japan Ltd | Magnetic recording and reproducing apparatus |
JPS588052B2 (ja) * | 1976-11-11 | 1983-02-14 | 松下電器産業株式会社 | 回転磁気ヘツド装置 |
JPS5492308A (en) * | 1977-12-29 | 1979-07-21 | Sony Corp | Head tracking device in recorder-reproducer |
JPS54307U (it) * | 1977-06-04 | 1979-01-05 | ||
US4169276A (en) * | 1977-10-17 | 1979-09-25 | Ampex Corporation | Drive circuit for controlling a movable magnetic head |
DE2747851A1 (de) * | 1977-10-26 | 1979-05-03 | Ted Bildplatten | Schaltung fuer die mechanische aufzeichnung eines signals, insbesondere fuer eine bildplatte |
US4197564A (en) * | 1978-03-23 | 1980-04-08 | Ampex Corporation | Automatically calibrated RF envelope detector circuit |
US4163993A (en) * | 1978-03-23 | 1979-08-07 | Ampex Corporation | Continuous slow motion automatic tracking system |
US4318142A (en) * | 1978-03-23 | 1982-03-02 | Ampex Corporation | Automatically compensated movable head servo circuit and method |
US4319289A (en) * | 1978-03-23 | 1982-03-09 | Ampex Corporation | Movable head automatic position acquisition circuit and method |
CA1147456A (en) * | 1978-03-23 | 1983-05-31 | Raymond F. Ravizza | Automatically compensated movable head servo circuit and method |
US4215362A (en) * | 1978-03-23 | 1980-07-29 | Ampex Corporation | Track selection method and apparatus |
NL7805804A (nl) * | 1978-05-29 | 1979-12-03 | Philips Nv | Inrichting voor het aanleggen van een stuurspanning over een pieezo-elektrisch positioneringselement. |
JPS5564631A (en) * | 1978-11-09 | 1980-05-15 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
US4285017A (en) * | 1979-02-05 | 1981-08-18 | International Business Machines Corporation | Stripe following in a helical scan device |
DE2950627A1 (de) * | 1979-12-15 | 1981-06-19 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Anordnung zur messung von oberflaechenprofilen |
JPS56153527A (en) * | 1980-04-12 | 1981-11-27 | Hitachi Denshi Ltd | Piezoelectric bimorph type transducer |
US4485414A (en) * | 1980-07-07 | 1984-11-27 | Ampex Corporation | Servo system for positioning a movable transducing head assembly |
DE3241601A1 (de) * | 1982-08-19 | 1984-02-23 | Siemens AG, 1000 Berlin und 8000 München | Elektrisch zu betaetigendes stellglied |
JPS5994103A (ja) * | 1982-11-19 | 1984-05-30 | Nec Corp | 電気機械変換器の制御装置 |
JPS59191126A (ja) * | 1983-04-14 | 1984-10-30 | Victor Co Of Japan Ltd | ビデオヘツドの位置制御装置 |
JPS59188657U (ja) * | 1983-06-01 | 1984-12-14 | オムロン株式会社 | 圧電素子の駆動回路 |
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 |
JPS6085753U (ja) * | 1983-11-18 | 1985-06-13 | 日本ビクター株式会社 | 磁気テ−プ記録再生装置 |
JPS6131576U (ja) * | 1984-07-30 | 1986-02-25 | 日野自動車株式会社 | スポツト溶接ガン |
US4647999A (en) * | 1984-12-03 | 1987-03-03 | Datatape Inc. | Frame for positioning transducing head |
JPS61162284A (ja) * | 1985-01-09 | 1986-07-22 | Toyota Auto Body Co Ltd | スポットガン電極の絶縁構造の製造方法 |
JPH0695377B2 (ja) * | 1985-03-12 | 1994-11-24 | ソニー株式会社 | バイモルフヘツドのバイモルフ駆動装置 |
FR2608825B1 (fr) * | 1986-12-19 | 1994-12-30 | Enertec | Dispositif pour la detection de la position d'une tete magnetique |
US5057953A (en) * | 1988-03-31 | 1991-10-15 | Applied Magnetics Corporation | Head slider suspension assembly load beam having a fundamental mode vibration characteristic in the range of about 2000 hertz to about 4000 hertz |
JPH06105497B2 (ja) * | 1988-06-28 | 1994-12-21 | 松下電器産業株式会社 | 記録再生装置の電子編集装置 |
US5448540A (en) * | 1990-09-21 | 1995-09-05 | Victor Company Of Japan, Ltd. | Device for detecting the position of a recording/reproducing element |
US5371427A (en) * | 1991-03-12 | 1994-12-06 | Nikon Corporation | Driver for piezoelectric actuator and shutter control device utilizing piezoelectric device |
US5343348A (en) * | 1991-04-03 | 1994-08-30 | Victor Company Of Japan, Ltd. | Actuator for displacing a magnetic head |
JP2653275B2 (ja) * | 1991-05-24 | 1997-09-17 | 日本ビクター株式会社 | 回転磁気ヘッドの位置検出装置 |
DE4444070C1 (de) * | 1994-12-10 | 1996-08-08 | Fraunhofer Ges Forschung | Mikromechanisches Element |
JP3394658B2 (ja) * | 1996-08-30 | 2003-04-07 | 理化学研究所 | 圧電性物質の弾性率の制御方法及び制御装置 |
US6064540A (en) * | 1998-03-30 | 2000-05-16 | International Business Machines Corporation | Active control for stabilizing a servo-controlled actuator system |
EP1537609A2 (en) * | 2002-09-04 | 2005-06-08 | Triad Sensors Inc. | Interface electronics for piezoelectric devices |
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 |
US7872396B2 (en) * | 2004-06-14 | 2011-01-18 | Massachusetts Institute Of Technology | Electrochemical actuator |
US8247946B2 (en) | 2004-06-14 | 2012-08-21 | Massachusetts Institute Of Technology | Electrochemical actuator |
US7994686B2 (en) * | 2004-06-14 | 2011-08-09 | Massachusetts Institute Of Technology | Electrochemical methods, devices, and structures |
US7999435B2 (en) * | 2004-06-14 | 2011-08-16 | Massachusetts Institute Of Technology | Electrochemical actuator |
US7541715B2 (en) | 2004-06-14 | 2009-06-02 | Massachusetts Institute Of Technology | Electrochemical methods, devices, and structures |
DE102005024192A1 (de) * | 2005-05-25 | 2006-11-30 | Siemens Ag | Piezoelektrischer Biegewandler mit Sensorelement zum Erfassen einer Auslenkung des Biegewandlers, Verfahren zum Erfassen der Auslenkung des Biegewandlers und Verwendung der erfassten Auslenkung |
DE102006046593B4 (de) * | 2006-09-30 | 2009-12-10 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Vorrichtung zur Reduktion von Schwingungen einer Struktur |
EP2178584A2 (en) * | 2007-07-26 | 2010-04-28 | Entra Pharmaceuticals Inc. | Skin-patch pump comprising a changing-volume electrochemical actuator |
WO2009122703A1 (ja) * | 2008-04-01 | 2009-10-08 | 株式会社村田製作所 | 圧電発電装置 |
DE102009038306A1 (de) * | 2009-08-21 | 2011-02-24 | Albert-Ludwigs-Universität Freiburg | Frequenzabstimmbarer Resonator und Verfahren zum Betreiben eines solchen |
US8886491B2 (en) * | 2010-04-30 | 2014-11-11 | Hunter Engineering Company | Auto-calibrating wheel balancer force transducer |
US8337457B2 (en) | 2010-05-05 | 2012-12-25 | Springleaf Therapeutics, Inc. | Systems and methods for delivering a therapeutic agent |
US8368285B2 (en) | 2010-12-17 | 2013-02-05 | Massachusette Institute Of Technology | Electrochemical actuators |
US9330698B1 (en) | 2013-03-18 | 2016-05-03 | Magnecomp Corporation | DSA suspension having multi-layer PZT microactuator with active PZT constraining layers |
US10607642B2 (en) | 2013-03-18 | 2020-03-31 | Magnecomp Corporation | Multi-layer PZT microactuator with active PZT constraining layers for a DSA suspension |
US11205449B2 (en) | 2013-03-18 | 2021-12-21 | Magnecomp Corporation | Multi-layer PZT microacuator with active PZT constraining layers for a DSA suspension |
US9330694B1 (en) * | 2013-03-18 | 2016-05-03 | Magnecomp Corporation | HDD microactuator having reverse poling and active restraining layer |
US9741376B1 (en) | 2013-03-18 | 2017-08-22 | Magnecomp Corporation | Multi-layer PZT microactuator having a poled but inactive PZT constraining layer |
JP6126692B2 (ja) * | 2013-08-06 | 2017-05-10 | 株式会社村田製作所 | 押圧検出センサ |
US10128431B1 (en) | 2015-06-20 | 2018-11-13 | Magnecomp Corporation | Method of manufacturing a multi-layer PZT microactuator using wafer-level processing |
CN110137340B (zh) * | 2019-04-08 | 2023-06-20 | 杭州士兰微电子股份有限公司 | 传感器组件的极化方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2594841A (en) * | 1945-08-11 | 1952-04-29 | Brush Dev Co | Piezoelectric transducer with pushpull and feedback circuit |
BE508692A (it) * | 1951-01-26 | |||
US2849075A (en) * | 1953-03-23 | 1958-08-26 | Socony Mobil Oil Co Inc | Self-sustaining oscillatory acoustic well logging |
US2848672A (en) * | 1955-07-26 | 1958-08-19 | Harris Transducer Corp | Self-excited transducer |
DE1077441B (de) * | 1959-04-03 | 1960-03-10 | Sennheiser Electronic | Taststift fuer Feintaster oder Oberflaechenpruefgeraet |
US3167667A (en) * | 1962-08-08 | 1965-01-26 | Lear Siegler Inc | Piezoelectric force controller |
US3336529A (en) * | 1962-12-03 | 1967-08-15 | Lockheed Aircraft Corp | Vibrating reed frequency responsive device |
US3478246A (en) * | 1967-05-05 | 1969-11-11 | Litton Precision Prod Inc | Piezoelectric bimorph driven tuners for electron discharge devices |
US3526726A (en) * | 1967-09-27 | 1970-09-01 | Ampex | Piezoelectric transducer assembly for positioning a magnetic record/reproduce head |
US3481014A (en) * | 1968-01-04 | 1969-12-02 | Litton Precision Prod Inc | Method of making a high temperature,high vacuum piezoelectric motor mechanism |
GB1381727A (en) * | 1971-08-26 | 1975-01-29 | English Electric Co Ltd | Devices incorporating cavity resonators |
JPS5227996B2 (it) * | 1971-08-30 | 1977-07-23 | ||
JPS5650329B2 (it) * | 1972-05-22 | 1981-11-28 | ||
US3787616A (en) * | 1972-06-05 | 1974-01-22 | Newell Ind | Time base error correction system and method |
US3821747A (en) * | 1973-04-23 | 1974-06-28 | Atomic Energy Commission | Recording system having piezoelectric stylus drive means |
NL7409513A (en) * | 1974-07-15 | 1976-01-19 | Philips Nv | Servo system for controlling position of magnetic reading head - has selection signals written into data tracks with simultaneous reading of adjacent tracks |
-
1976
- 1976-04-16 US US05/677,683 patent/US4093885A/en not_active Expired - Lifetime
-
1977
- 1977-03-11 IT IT48438/77A patent/IT1082173B/it active
- 1977-03-17 FR FR7707943A patent/FR2345050A1/fr active Granted
- 1977-03-17 GB GB11478/78A patent/GB1579856A/en not_active Expired
- 1977-03-18 NL NL7702989A patent/NL7702989A/xx not_active Application Discontinuation
- 1977-03-18 DE DE2711976A patent/DE2711976B2/de not_active Ceased
- 1977-03-18 BE BE175904A patent/BE852622A/xx not_active IP Right Cessation
- 1977-03-18 AT AT0188277A patent/AT388465B/de not_active IP Right Cessation
- 1977-03-18 DE DE7708482U patent/DE7708482U1/de not_active Expired
- 1977-03-19 JP JP52031008A patent/JPS5818686B2/ja not_active Expired
- 1977-03-21 CA CA274,368A patent/CA1125909A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1125909A (en) | 1982-06-15 |
FR2345050B1 (it) | 1983-04-01 |
BE852622A (fr) | 1977-07-18 |
NL7702989A (nl) | 1977-09-21 |
AT388465B (de) | 1989-06-26 |
JPS5818686B2 (ja) | 1983-04-14 |
DE2711976B2 (de) | 1980-04-24 |
GB1579856A (en) | 1980-11-26 |
ATA188277A (de) | 1983-10-15 |
JPS52117105A (en) | 1977-10-01 |
DE2711976A1 (de) | 1977-09-22 |
DE7708482U1 (de) | 1988-07-28 |
FR2345050A1 (fr) | 1977-10-14 |
US4093885A (en) | 1978-06-06 |
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