Study on Measurement Technique of Dynamic Electrostatic Potential

摘要

The electrostatic discharge of human body or the charged conductor is one of the main cause resulting electrostatic hazard accidents, and the probability of which the accidents would take place has direct relation with electrostatic dynamic potential. Therefore, it is the key question how to measure the dynamic potential of human body or the charged conductor well and truly in electrostatic hazard protection engineering. Aiming at the questions about testing electrostatic potential, authors have put forward a new principle testing electrostatic potential, and have developed model ZPD-1 electrostatic potential dynamic testing instrument that has been successfully applied in testing dynamic potential of human body static. This instrument has the function of real-time display and peak potential holding. Theoretical analysis and data from experiments have testified that the instrument has high input resistance, excellent frequency characteristic and anti-interference performance as well as linearity for high voltage, etc.