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滑动变阻器线圈是什么材料做的
更新时间: 2020-08-16 00:00:00  

滑动变阻器线圈是通过康铜丝或镍铬合金丝,将康铜丝或镍铬合金丝绕制在绝缘筒上,两端用引线引出,变阻器的滑片接触电阻丝并可调节到两端的距离,从而改变金属杆到电阻丝两端的电阻制作而成的,或者用电阻材料,比如碳质材料镀在绝缘基板上,由中间的滑片来调节电阻的滑动变阻器制作而成。

关键词: 滑动 变阻器 线圈 什么 材料

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