多圈线绕电位器的特点 多圈线绕电位器的分类

Release time：2023-02-20
author：Ameya360
source：网络
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　　多圈线绕电位器是一种可以通过多圈转动的机械角度来使阻值变化的电位器，它外观由电阻丝在环状骨架上绕制成。今天Ameya360电子元器件采购网将给大家进行介绍！

多圈线绕电位器的特点 多圈线绕电位器的分类

　　1.多圈线绕电位器分类

　　多圈线绕电位器的旋转角度与输出电阻的规律有直线式、指数式和对数式三种。直线式电位器的旋转角度与输出电阻成线性关系如a线，在限流、分压、定时、阻抗匹配等场合应用较多。指数式电位器的旋转角度与输出电阻成指数关系(b)，先细挑后粗调，如音量调节电位器。对数式电位器的旋转角度与输出电阻成对数关系，与指数电位器相反(c)，先粗调后细调，如对比度调节电位器。

　　2.多圈线绕电位器的特点

　　多圈线绕电位器具有高精度、稳定性好、温度系数小，接触可靠等优点，并且耐高温，功率负荷能力强。缺点是阻值范围不够宽、高频性能差、分辨力不高，而且高阻值的线绕电位器易断线、体积较大、售价较高。


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