Design and realization of non-contact electrostatic potential test device

Electrostatic potential testing is an important parameter for characterization of the electrostatic source. A non-contact electrostatic potential test device is designed for zreo-point drift, interference effect, narrow frequency range and other common problems in the current non-contact electrostatic potential test device in this paper. The above problems such as zreo-point drift, interference effect and narrow frequency range are solved. The basic principle of non-contact electrostatic potential test is introduced. The hardware and software design and implementation process of non-contact electrostatic potential test device are described in detail. The test verification and application of the device are given. Finally the key technical problems solved in the design implementation process are summarized.