JPS55113102A - Turn table unit - Google Patents
Turn table unitInfo
- Publication number
- JPS55113102A JPS55113102A JP1890379A JP1890379A JPS55113102A JP S55113102 A JPS55113102 A JP S55113102A JP 1890379 A JP1890379 A JP 1890379A JP 1890379 A JP1890379 A JP 1890379A JP S55113102 A JPS55113102 A JP S55113102A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- stabilizer
- turn table
- record
- inertia
- 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
Links
Abstract
PURPOSE: To improve unclearness of a reproduced sound in a low frequency range and indistinction of sound image localization by arranging a stabilizer with fixed operation characteristics on a turn table.
CONSTITUTION: With record sheet 2 interposed, record 3 is mounted on turn table 1 of moment of inertia Ja, and at the outer circumference of record 3, stabilizer 4 with moment of inertia Jb is arranged. Further, DD motor 5 is brought under speed control by a speed proportional control loop of gain G2 consisting of speed detector 6, speed voltage converter 7, comparator 8, and amplifier 9 and a speed integral control loop of gain G1 consisting of phase difference detection circuit 11 and mixer 12. Then, stabilizer 4 operates to set natural vibration frequency (G1/Ja+Jb)1/2/2π of the unit below a flutter frequency at which a detection limit is lowest.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1890379A JPS55113102A (en) | 1979-02-20 | 1979-02-20 | Turn table unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1890379A JPS55113102A (en) | 1979-02-20 | 1979-02-20 | Turn table unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55113102A true JPS55113102A (en) | 1980-09-01 |
JPS6362820B2 JPS6362820B2 (en) | 1988-12-05 |
Family
ID=11984542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1890379A Granted JPS55113102A (en) | 1979-02-20 | 1979-02-20 | Turn table unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55113102A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0394661U (en) * | 1990-01-19 | 1991-09-26 | ||
KR20020061098A (en) * | 2001-01-12 | 2002-07-22 | 대양기공주식회사 | Driving apparatus for index table of vertical universal milling machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102550815B1 (en) * | 2021-07-06 | 2023-07-03 | 인천대학교 산학협력단 | A Small Waveguide Dual Function Bandstop Filter to Suppress 5G Mobile 28 GHz Band While Passing Sub-6 GHz Bands |
-
1979
- 1979-02-20 JP JP1890379A patent/JPS55113102A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0394661U (en) * | 1990-01-19 | 1991-09-26 | ||
KR20020061098A (en) * | 2001-01-12 | 2002-07-22 | 대양기공주식회사 | Driving apparatus for index table of vertical universal milling machine |
Also Published As
Publication number | Publication date |
---|---|
JPS6362820B2 (en) | 1988-12-05 |
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