偶极矩的测量装置是物质结构教学和科学研究常用的仪器,偶极矩的测量方法很多,如:电桥法、共振法、拍频法等等,其中以拍频法较为精确。拍频法测量装置的电路在文献上記载很多,对有些电子管知识的工作者都可以照装,但对大多数化学工作者来说还有些困难。作者考虑到大跃进以来国内已生产出大批的高频信号发生器及电子稳压电源,这些仪器一般学校、厂矿、科研机关都备有相当的数量,因而提供一个简而易行的办法。 Dipole moment measuring device is commonly used in teaching and scientific research of material structure. There are many methods for measuring dipole moment, such as bridge method, resonance method and beat frequency method, among which beat frequency method is more accurate. The circuit of the beat-frequency measurement device is well documented in the literature, and workers with some knowledge of the tube can take pictures of it, but it is still somewhat difficult for most chemists. The author considers that since the Great Leap Forward, a large number of high-frequency signal generators and electronic regulated power sources have been produced in China. These instruments are generally available in schools, factories and mines and scientific research institutes, thus providing an easy and simple solution.