发明名称 |
Precise bearing support ditherer with piezoelectric drive means |
摘要 |
A relatively solid mounting surface, which may be part of a leveling gimbal, supports a piezoelectric bearing mount which has the properties of an acoustic transducer. The transducer has electrodes thereon which are powered from multi-phase electrical sources causing the bearing mount, and a bearing jewel which is rigid therewith, to move so as to dither the jewel in a rotary or other preselected fashion, thereby reducing bearing friction. Bandwidth, level and phasing sequence of the power sources are adjustable permitting optimized average dynamic motion and corresponding increased readout accuracy.
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申请公布号 |
US4523120(A) |
申请公布日期 |
1985.06.11 |
申请号 |
US19840617049 |
申请日期 |
1984.06.04 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
ASSARD, GERALD L.;MOORCROFT, ARTHUR L. |
分类号 |
H01L41/09;(IPC1-7):H01L41/08 |
主分类号 |
H01L41/09 |
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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