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1. 发明授权

US4181923A Ceramic trimmer capacitor 失效
标题翻译：陶瓷微调电容器
公开(公告)号：US4181923A
公开(公告)日：1980-01-01
申请号：US925189
申请日：1978-07-17
申请人： Toshio Tatsumi , Tadashi Otani , Masami Yamazi
发明人： Toshio Tatsumi , Tadashi Otani , Masami Yamazi
IPC分类号： H01G5/08 , G04G5/00 , H01G5/013 , H01G5/06
CPC分类号： H01G5/0136
摘要： A ceramic trimmer capacitor comprising a cylindrical casing, a stator and a rotor comprising a rotor casing and a dielectric assembly consisting of a disk-shaped ceramic dielectric member, a semicircular dielectric layer formed upon the upper surface of the dielectric member and having a low dielectric constant less than 20 and a coefficient of thermal expansion substantially equal to the dielectric member and a rotor electrode formed on the whole surface of the dielectric member including the semicircular dielectric layer, the dielectric assembly being inserted into the rotor casing and electrically and mechanically connected thereto; the stator and the rotor being placed in the cylindrical casing and resiliently supported. Stray capacitance is almost negligible; the variable capacitance range may be considerably improved; and the mechanical strength may be increased. The ceramic trimmer capacitor is especially adapted to be used in an electronic watch.
摘要翻译：一种陶瓷微调电容器，包括圆柱形壳体，定子和转子，其包括转子壳体和由盘形陶瓷电介质构件组成的电介质组件，形成在电介质构件的上表面上并具有低电介质的半圆形电介质层常数小于20，并且基本上等于电介质构件的热膨胀系数和形成在包括半圆形电介质层的电介质构件的整个表面上的转子电极，电介质组件插入到转子壳体中并与之电气和机械连接 ; 定子和转子被放置在圆柱形壳体中并且弹性支撑。杂散电容几乎可以忽略不计; 可以显着地提高可变电容范围; 并且可以增加机械强度。陶瓷微调电容器特别适用于电子手表。

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