发明名称 |
METHOD OF FORCE/ACCELERATION REEL TAPE SIZING |
摘要 |
The amount of tape wound on the hub of a reel can be determined by the tape drive by using a force/acceleration relationship. An electrical power which provides a certain torque to the motor is applied to the reel drive. The torque imparts a fixed rotational displacement over a fixed period of time. The rotational displacement is measured by a tachometer. The angular acceleration of different inertias results in different rotational displacement over the set period of time which can be used to indicate the amount of tape on the reel since the inertia of the other items, the motor, the clutch and the hub, remains the same. |
申请公布号 |
DE3380779(D1) |
申请公布日期 |
1989.11.30 |
申请号 |
DE19833380779 |
申请日期 |
1983.08.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
DANIELSEN, KENNETH DANIEL;WINARSKI, DANIEL JAMES |
分类号 |
G01L5/00;G01B21/06;G11B15/02;G11B27/13;G11B27/17;(IPC1-7):G11B27/17;G11B27/10 |
主分类号 |
G01L5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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