纺织纤维的交流导电浴盆效应及其应用

对纤维施加幅值固定、频率变化的激励信号时 ,其阻抗随着频率的增加 ,先迅速降低 ,超过某一频率后又迅速升高 ,谓之交流导电“浴盆效应”现象 ,利用此特性可设计交流阻抗法纤维回潮率快速测试系统 ,以克服传统电阻法测试纤维水分时“测量误差大”和“极板易极化”等缺陷 ,为设计开发新型纤维水分快速测试仪提供理论依据。

AC electric conductivity bathtub effect and its application of the textile fiber

When stimulating signals with fixed value and varied frequencies are fed to the t extile fiber,the alternating current (AC) resistance fall quickly along with the increase of frequency at first. And after reaching a certain frequencies,the n r ise immediately. The phenomenon is called “AC electric conductivity bathtub eff ect.” Using this effect to design a prompt AC resistance method-oriented test ing system of the textile fiber moisture regain, the dnaio -back on the excessive measuring error and the plate polarization with traditio nal resistance-testing method can be reduced, which can afford the theoret ical proof for designing and developing a new prompt fiber moisture testing device.