摘要
在１０４至１０－５Ｈｚ频段，电介质的介电谱需要用时域参数描述。介质的极化响应可表述为Ａεｓｅｘｐ［－（ｔ／τ）α］类型的若干项之和。各项中的（Ａ，τ，α）称为时域参数。本文介绍了一种由ＩＢＭＰＣ微机主控的时域参数介电谱仪。它具有数字化、自动化、高精度、高灵敏度的特点，在介电谱的时域参数测量和其它电学物理量的测量上会有较广泛的应用。
In the frequency range of 10 -5 to 10 4 Hz,the dielectric spectroscopy of dielectrics can only be described using time domain parameters. The polarization response of dielectrics may be expressed as the sum of several terms which have the form Aε s exp(t/τ) α]. (A,τ,α) are designated as the time domain parameters. This paper presents a new type of time domain parameter dielectric spectrometer. The characteristics of the spectrometer is digitalization, automatization, high precision and high sensitivity. The application of the spectrometer is not only in the measurement of time domain dielectric spectroscopy, but also in measurement of other physics parameters.
关键词
介电弛豫
计算机控制
介电谱
时域
电介质
energy spectrum
dielectric relaxation
computer control
dielectric spectrometer
time domain
microcomputer
automatic-control
