JPS56160085A - Piezoelectric bimorph type transducer - Google Patents

Piezoelectric bimorph type transducer

Info

Publication number
JPS56160085A
JPS56160085A JP6272480A JP6272480A JPS56160085A JP S56160085 A JPS56160085 A JP S56160085A JP 6272480 A JP6272480 A JP 6272480A JP 6272480 A JP6272480 A JP 6272480A JP S56160085 A JPS56160085 A JP S56160085A
Authority
JP
Japan
Prior art keywords
piezoelectric bimorph
piezoelectric
detecting electrode
taken out
bent
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
JP6272480A
Other languages
Japanese (ja)
Inventor
Yukio Shinoda
Kiyohiko Himeno
Susumu Kasai
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP6272480A priority Critical patent/JPS56160085A/en
Publication of JPS56160085A publication Critical patent/JPS56160085A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To enable a control signal for a damping means to be taken out with a sufficient level by a method wherein a signal detecting electrode is formed only at a part where the piezoelectric bimorph is actually bent. CONSTITUTION:The displacement detecting electrode 8 is formed extending over a prescribed length at the part where the piezoelectric bimorph is actually bent, that is, only at the part near a movable end where a part fixed to fitting member 5 with a fastening plate 6 is removed and a magnetic head 4 is fitted. When the piezoelectric bimorph 1 is bent due to the application of a control voltage or the disturbance, a stress caused by the bend appears on piezoelectric plates 1-1, 1-2 in the forms of a tensile stress and a compressive stress, the stresses turn up as signals corresponding to the bends of the piezoelectric bimorph on the detecting electrode 8 by the piezoelectric effect and taken out as the control signals with the sufficient level due to the nonexistence of a construction which causes the fall of the level.
JP6272480A 1980-05-14 1980-05-14 Piezoelectric bimorph type transducer Pending JPS56160085A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6272480A JPS56160085A (en) 1980-05-14 1980-05-14 Piezoelectric bimorph type transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6272480A JPS56160085A (en) 1980-05-14 1980-05-14 Piezoelectric bimorph type transducer

Publications (1)

Publication Number Publication Date
JPS56160085A true JPS56160085A (en) 1981-12-09

Family

ID=13208590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6272480A Pending JPS56160085A (en) 1980-05-14 1980-05-14 Piezoelectric bimorph type transducer

Country Status (1)

Country Link
JP (1) JPS56160085A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231011A (en) * 1975-08-29 1977-03-09 Celanese Corp Method of substituting hydroformyl group
JPS5241433U (en) * 1975-09-18 1977-03-24
JPS52117108A (en) * 1976-03-19 1977-10-01 Ampex Drive circuit for controlling movable video head

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231011A (en) * 1975-08-29 1977-03-09 Celanese Corp Method of substituting hydroformyl group
JPS5241433U (en) * 1975-09-18 1977-03-24
JPS52117108A (en) * 1976-03-19 1977-10-01 Ampex Drive circuit for controlling movable video head

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