-
公开(公告)号：US3652955A
公开(公告)日：1972-03-28
申请号：US3652955D
申请日：1970-07-30
Applicant: GEN TIME CORP
Inventor： CRUGER RICHARD E , ANDERSON WILMER C , EARLS DAVID , WINDEBANK ROBERT W
Abstract: An electrically driven oscillator device is provided with one or more electrets for establishing electrostatic coupling between a mechanical oscillating element and an electrical drive. The mechanical oscillating element can comprise a reed, a tuning fork, a pendulum, or a hair-spring balance wheel. The electrical drive can be an AC voltage source or an electronic feedback circuit. In electrically driven devices, electrets can be used in both the pickup and driving circuits to eliminate hysteresis. Alternatively, in order to isolate the pickup circuit from the driving circuit, electrets can be used in only one of these circuits and magnetic arrangements can be used in the other.
-
公开(公告)号：US3696258A
公开(公告)日：1972-10-03
申请号：US3696258D
申请日：1970-07-30
Applicant: GEN TIME CORP
Inventor： ANDERSON WILMER C , WINDEBANK ROBERT W
Abstract: An electric motor comprises a rotor including a plurality of electret portions and a stator including an array of fixed electrode pairs for driving the electret rotor in response to an applied AC voltage. A significant advantage of this motor is the fact that it does not require either wound conductive coils or a laminated metal core; consequently, it can be more easily fabricated than typical prior art motors. In a preferred embodiment, the rotor comprises a rotatably mounted circular disc including a plurality of electret portions disposed at equal angular intervals around the rotor disc. The stator can comprise a pair of fixed discs, having a plurality of opposing electrode portions.
Abstract translation: 电动机包括：转子，其包括多个驻极体部分;以及定子，其包括用于响应于施加的交流电压驱动驻极体转子的固定电极对的阵列。 该电动机的显着优点在于其不需要卷绕的导电线圈或层压金属芯; 因此，可以比典型的现有技术的电动机更容易地制造。 在优选实施例中，转子包括可旋转地安装的圆盘，其包括围绕转子盘以相等的角度间隔设置的多个驻极体部分。 定子可以包括一对固定盘，其具有多个相对的电极部分。
-
Search Results
2
records
(took 0.011 seconds)
