Anti-static equipment performance testing method such as ion fan
1. Using electrostatic voltmeter method
Use nylon cloth or plastic to rub against the surface of the antistatic equipment to be tested, and measure the surface potential with a low-cost and easy-to-use electrostatic voltmeter. If the electrification is very low several hundred volts and quickly decreases or the electrostatic meter indicates almost zero, The performance is better; if the electrification voltage is higher, such as several thousand volts or tens of thousands of volts, and it can hardly fall for a long time (several seconds or more), the antistatic performance is poor.
2, using the megohmmeter and electrode method
Generally, the electrostatic surface resistivity of antistatic equipment is a good performance product in the range of 106-109 Ω, and the test voltage is usually 100V or 500V. Therefore, measurements can be made with a megger and an electrode. The size and weight of the electrode when measuring the surface resistance have a great influence on the measurement results. Therefore, the error is sometimes large when measuring with a non-standard electrode.