A simple method to measure work function

Lu Wei-yuan, Zhen Youlai, Zhang Jingzhi
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Abstract

Work function is an important parameter for identifying cathode quality during developing a new cathode or improving cathode manufacturing engineering. This thesis introduced how to obtain cathode zero field current and relevant cathode temperature by means of the method of descent and how to calculate work function by the Richard equation. So a needful method to rapidly measure work function is discovered. The method has no need of complicated equipment and applies to productive establishment. The thesis briefly described measuring principle, equipment and measuring method and gives the measuring data of work function of various scandate cathodes. lt also simply analyzed measuring error.
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一种测量功函数的简单方法
在开发新阴极或改进阴极制造工程中,功函数是鉴别阴极质量的重要参数。本文介绍了如何用下降法获得阴极零场电流和相应的阴极温度,以及如何用理查德方程计算功函数。从而找到了一种快速测量功函数的方法。该方法不需要复杂的设备,适用于生产场所。本文简要介绍了各种阴极的测量原理、设备和测量方法,并给出了各种阴极功函数的测量数据。并对测量误差进行了简单分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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