论文部分内容阅读
MYZ2型微电机用环形压敏电阻器(以下简称 MYZ2)主要用于录音机电机抑制电气干扰,电压非线性系数α(以下简称α)是 MYZ2的一项重要电参数,其好坏直接影响 MYZ2的消噪性能。目前,国内还没有专用仪器直接测量α,一般采用图1线路进行测量。当 MYZ2通过10mA 和1mA 直流电流时,分别测得两电极间的电压为 E_(10)和 E_1,再按式(1)计算得到α值。
MYZ2 type micro-motor with a ring varistor (hereinafter referred to as MYZ2) is mainly used for recorder motor to suppress electrical interference, voltage nonlinear coefficient α (hereinafter referred to as α) is an important MYZ2 electrical parameters, the direct or indirect impact of MYZ2 Noise reduction performance. At present, there is no special instrument for direct measurement of α in China. Generally, the measurement is carried out by using the line of FIG. 1. When MYZ2 passes through 10mA and 1mA DC current, the voltage between the two electrodes is respectively measured as E_ (10) and E_1, and then the value of α is calculated according to formula (1).