JPS6414761A - Reel servo device - Google Patents
Reel servo deviceInfo
- Publication number
- JPS6414761A JPS6414761A JP62170542A JP17054287A JPS6414761A JP S6414761 A JPS6414761 A JP S6414761A JP 62170542 A JP62170542 A JP 62170542A JP 17054287 A JP17054287 A JP 17054287A JP S6414761 A JPS6414761 A JP S6414761A
- Authority
- JP
- Japan
- Prior art keywords
- reel
- driving
- tape
- reels
- motor
- 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 almost fix the traveling speed of a tape independently of the winding diameter of the tape by detecting the rotational speed difference of reels and applying respectively reversed driving force to respective reel driving motors. CONSTITUTION:The rotational frequency of a tape feeding side reel 2 and that of a tape winding side reel 1 are independently detected and F/V converted into voltages proportional to respective rotational speeds by F/V converters 3, 4. The rotational speed differences of the reels 1, 2 are found out respectively from the rotational speeds of the reels 2, 1 and a motor driving circuit 9 for driving a reel driving motor 5 for the reel 1 is controlled by an output from a differential amplifier 7 obtained by subtracting the rotational speed of the reel 1 from that of the reel 2 to apply reel winding driving operation. On the other hand, a motor driving circuit 10 for driving a reel driving motor 6 for the reel 2 is controlled by an output from a differential amplifier 8. Consequently, a fixed tape traveling speed can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170542A JPH0697525B2 (en) | 1987-07-08 | 1987-07-08 | Reel servo equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170542A JPH0697525B2 (en) | 1987-07-08 | 1987-07-08 | Reel servo equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6414761A true JPS6414761A (en) | 1989-01-18 |
JPH0697525B2 JPH0697525B2 (en) | 1994-11-30 |
Family
ID=15906827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62170542A Expired - Lifetime JPH0697525B2 (en) | 1987-07-08 | 1987-07-08 | Reel servo equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0697525B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04113543A (en) * | 1990-09-03 | 1992-04-15 | Hitachi Ltd | Device and method for reel exchange type magnetic tape unit |
-
1987
- 1987-07-08 JP JP62170542A patent/JPH0697525B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04113543A (en) * | 1990-09-03 | 1992-04-15 | Hitachi Ltd | Device and method for reel exchange type magnetic tape unit |
Also Published As
Publication number | Publication date |
---|---|
JPH0697525B2 (en) | 1994-11-30 |
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