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JPS5611620A - Measuring unit of contact force of magnetic head - Google Patents

Measuring unit of contact force of magnetic head

Info

Publication number
JPS5611620A
JPS5611620A JP8365079A JP8365079A JPS5611620A JP S5611620 A JPS5611620 A JP S5611620A JP 8365079 A JP8365079 A JP 8365079A JP 8365079 A JP8365079 A JP 8365079A JP S5611620 A JPS5611620 A JP S5611620A
Authority
JP
Japan
Prior art keywords
magnetic head
contact force
head
bimorph
measuring unit
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
JP8365079A
Other languages
Japanese (ja)
Other versions
JPS6321249B2 (en
Inventor
Masayuki Kuroda
Masakuni Suzuki
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP8365079A priority Critical patent/JPS5611620A/en
Publication of JPS5611620A publication Critical patent/JPS5611620A/en
Publication of JPS6321249B2 publication Critical patent/JPS6321249B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

PURPOSE: To obtain the magnetic head contact force measuring unit simple in the construction, high in the accuracy and faster in the response speed, by contacting the magnetic head supported on the piezoelectric element to the magnetic recording medium and detecting the contact force of magnetic head with the electric output in response to the deformation of the piezoelectric element, in VTR.
CONSTITUTION: The head chip 2 is fixed to the tip of the bimorph element 4 being the piezoelectric element via the head chip mounting member 3. The base of the bimorph element 4 is fixed to the head base 6 via the bimorph support member 5 such as glass and ceramic, and the back side of another end is in contact with the damper member 20 made of rubber or the like. In the bimorph element 4, two piezoelectric plates are stuck via the intermediate electrode 9 so that the direction of polarization is opposite each other and the element is formed by fitting the surface electrodes 10, 11, and a voltage is output at the surface electrodes 9, 10 with the displacement (arrow mark x direction) of the tip. Accordingly, the contact force of the magnetic head can be measured with a simple construction, high accuracy and faster response speed.
COPYRIGHT: (C)1981,JPO&Japio
JP8365079A 1979-07-02 1979-07-02 Measuring unit of contact force of magnetic head Granted JPS5611620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8365079A JPS5611620A (en) 1979-07-02 1979-07-02 Measuring unit of contact force of magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8365079A JPS5611620A (en) 1979-07-02 1979-07-02 Measuring unit of contact force of magnetic head

Publications (2)

Publication Number Publication Date
JPS5611620A true JPS5611620A (en) 1981-02-05
JPS6321249B2 JPS6321249B2 (en) 1988-05-06

Family

ID=13808317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8365079A Granted JPS5611620A (en) 1979-07-02 1979-07-02 Measuring unit of contact force of magnetic head

Country Status (1)

Country Link
JP (1) JPS5611620A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60127436A (en) * 1983-12-14 1985-07-08 Fuji Photo Film Co Ltd Contact-force measuring device of magnetic head
JPS6431504U (en) * 1987-08-20 1989-02-27
US7919905B2 (en) * 2006-03-10 2011-04-05 Sony Corporation Magnetic head actuator having conductive fastening member electrically connecting upper and lower piezoelectric elements

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506774A (en) * 1973-05-30 1975-01-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506774A (en) * 1973-05-30 1975-01-23

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60127436A (en) * 1983-12-14 1985-07-08 Fuji Photo Film Co Ltd Contact-force measuring device of magnetic head
JPS6431504U (en) * 1987-08-20 1989-02-27
US7919905B2 (en) * 2006-03-10 2011-04-05 Sony Corporation Magnetic head actuator having conductive fastening member electrically connecting upper and lower piezoelectric elements

Also Published As

Publication number Publication date
JPS6321249B2 (en) 1988-05-06

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