JPS57120202A - Linear tracking arm device - Google Patents
Linear tracking arm deviceInfo
- Publication number
- JPS57120202A JPS57120202A JP422781A JP422781A JPS57120202A JP S57120202 A JPS57120202 A JP S57120202A JP 422781 A JP422781 A JP 422781A JP 422781 A JP422781 A JP 422781A JP S57120202 A JPS57120202 A JP S57120202A
- Authority
- JP
- Japan
- Prior art keywords
- arm
- processed
- base
- horizontal
- turning
- 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
Links
Abstract
PURPOSE: To improve stability and follow-up characterstics, by providing a phase-lead compensating means of permitting an MFB arm to track.
CONSTITUTION: The output voltage of a detection coil 41 for a horizontal turning angle is processed through the power amplification of a horizontal-turning driving circuit 50 via an amplifier 48 to flow a driving current through series- connected coils 14 and 15, thus controlling horizontal turning. The output voltages of both magnetic effect elements 43 and 44 are processed through the operational amplification of a differential amplifier 51, and the resulting voltage is passed through a compensator 52 composed of a phase leading circuit which has a polygonal frequency, about 20W40% of an arm resonance frequency, and processed through the power amplification of a base driving circuit 53, thereby flowing a driving current to a motor 23. The driving force which corresponds to the turning angle of a tone arm is supplied to an arm base 16 by the motor 23, and the arm base 16 moves in a tracking direction together with the tone arm 4.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP422781A JPS57120202A (en) | 1981-01-14 | 1981-01-14 | Linear tracking arm device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP422781A JPS57120202A (en) | 1981-01-14 | 1981-01-14 | Linear tracking arm device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57120202A true JPS57120202A (en) | 1982-07-27 |
Family
ID=11578681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP422781A Pending JPS57120202A (en) | 1981-01-14 | 1981-01-14 | Linear tracking arm device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57120202A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0656644U (en) * | 1993-05-18 | 1994-08-05 | 株式会社日立ホームテック | Electric kotatsu heating device |
-
1981
- 1981-01-14 JP JP422781A patent/JPS57120202A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0656644U (en) * | 1993-05-18 | 1994-08-05 | 株式会社日立ホームテック | Electric kotatsu heating device |
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