发明授权
- 专利标题： Oscillator with electrodynamic drive and electromagnetic detection, especially for use in an electronic clock
- 专利标题（中）： 具有电动驱动和电磁检测的振荡器，特别适用于电子钟
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申请号： US3713047D申请日： 1970-12-07
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公开(公告)号： US3713047A公开(公告)日： 1973-01-23
- 发明人: KETTERER E , FOREST B
- 申请人： KROEWERATH S & CO FA
- 专利权人： Kroewerath S & Co Fa
- 当前专利权人： Kroewerath S & Co Fa
- 优先权： DE1961629 1969-12-09
- 主分类号： G04B17/22
- IPC分类号： G04B17/22 ; G04C3/00 ; G04C3/027 ; G04C3/06 ; G04C3/04 ; H02K33/18 ; H03B5/30
摘要：
An oscillator of the swinging-mass type, especially for use in an electronic clockwork wherein an amplifier feedback circuit is provided between a pickup coil and a drive coil electromagnetically coupled with the swinging mass. The swinging mass is formed with a pair of oppositely poled permanent magnets spaced apart by a distance less than the magnetic cross-section of the coil means constituting the pickup and drive coils.
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