JPS57169902A - Measuring device for inside force - Google Patents

Measuring device for inside force

Info

Publication number
JPS57169902A
JPS57169902A JP56056466A JP5646681A JPS57169902A JP S57169902 A JPS57169902 A JP S57169902A JP 56056466 A JP56056466 A JP 56056466A JP 5646681 A JP5646681 A JP 5646681A JP S57169902 A JPS57169902 A JP S57169902A
Authority
JP
Japan
Prior art keywords
force
inside force
sensing elements
stress sensing
bridge circuit
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
JP56056466A
Other languages
Japanese (ja)
Inventor
Koichi Azuma
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56056466A priority Critical patent/JPS57169902A/en
Publication of JPS57169902A publication Critical patent/JPS57169902A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
    • G11B3/28—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse providing transverse bias parallel to record

Landscapes

  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

PURPOSE:To accurately measure the inside force over the entire range of a record disc, by providing stress sensing elements at the inside of a head shell. CONSTITUTION:Stress sensing elements 3a and 3b which detect a horizontal force of an oscillating system part 4 of a cartridge are provided at the inside of a head shell 1. The elements 3a and 3b form a bridge circuit 5 with resistors R1 and R2. If an inside force is generated in the oscillation system part 4, a plate spring 2 is displaced in accordance with said force and a strain is caused in the stress sensing elements 3a and 3b. Thus, a voltage proportional to the inside force is outputted from the bridge circuit 5, this is applied to a display device 6 and the amount of the inside force is displayed. Thus, the amount of the inside force can be measured accurately even at any position on a record disc.
JP56056466A 1981-04-14 1981-04-14 Measuring device for inside force Pending JPS57169902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56056466A JPS57169902A (en) 1981-04-14 1981-04-14 Measuring device for inside force

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56056466A JPS57169902A (en) 1981-04-14 1981-04-14 Measuring device for inside force

Publications (1)

Publication Number Publication Date
JPS57169902A true JPS57169902A (en) 1982-10-19

Family

ID=13027874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56056466A Pending JPS57169902A (en) 1981-04-14 1981-04-14 Measuring device for inside force

Country Status (1)

Country Link
JP (1) JPS57169902A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5012723A (en) * 1973-04-23 1975-02-10
JPS51100702A (en) * 1975-03-03 1976-09-06 Sony Corp TOONAA MUSOCHI
JPS566A (en) * 1979-06-15 1981-01-06 Sony Corp Inside force canceller

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5012723A (en) * 1973-04-23 1975-02-10
JPS51100702A (en) * 1975-03-03 1976-09-06 Sony Corp TOONAA MUSOCHI
JPS566A (en) * 1979-06-15 1981-01-06 Sony Corp Inside force canceller

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