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2. 发明授权

US06339336B1 Moving magnet type galvanometer 失效
标题翻译：移动磁体式电流计
公开(公告)号：US06339336B1
公开(公告)日：2002-01-15
申请号：US09531325
申请日：2000-03-20
申请人： Yutaka Oisugi , Takashi Oguro
发明人： Yutaka Oisugi , Takashi Oguro
IPC分类号： G01R2726
CPC分类号： G01D5/2412 , B23K26/02 , B23K26/037
摘要： A galvanometer is described which has increased capacitance and which is hardly affected by humidity while maintaining the advantages of low machining precision and being unaffected by temperature variations. A front bearing and a rear bearing are fixed to a front shaft and a rear shaft, respectively, of a rotor held in a coil of a stator. Only an outer race of the front bearing is slidably inserted without being fixed to a case and has a force applied in a rear shaft direction by springs. A butterfly-shaped common electrode, which is patterned with a conductive thin film, is mounted on the rear shaft through a hub, and a four-division electrode is opposed thereto with an extremely small air gap to the butterfly-shaped common electrode. The four-division electrode is mounted on a spacer, and the spacer is mounted on the case so as to provide the air gap of a desired dimension. The rear shaft, the hub, and the spacer are made of an identical material.
摘要翻译：描述了一种电流计，其具有增加的电容并且几乎不受湿度影响，同时保持了低加工精度的优点并且不受温度变化的影响。前轴承和后轴承分别固定到前轴和后轴，保持在定子的线圈中的转子。只有前轴承的外圈可滑动地插入而不固定到壳体上并且具有通过弹簧沿后轴方向施加的力。用导电薄膜构图的蝴蝶状公共电极通过轮毂安装在后轴上，四分割电极与蝶形公共电极具有非常小的气隙相对。四分割电极安装在间隔件上，并且间隔件安装在壳体上，以便提供所需尺寸的气隙。后轴，轮毂和间隔件由相同的材料制成。

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