Electrostatic potential monitoring device and method
A technology of electrostatic potential and monitoring device, applied in the direction of measuring device, static electricity, measuring current/voltage, etc., can solve the problems of not realizing real-time monitoring of anti-static work and traceability of exceeding standard records, and not having on-site electrostatic protection online monitoring capability, etc. Achieve the effect of traceable, accurate and real-time monitoring
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[0019] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation methods.
[0020] see figure 1 , The electrostatic potential monitoring device of the present invention includes an electrostatic discharge capacitor, a voltage comparator, a potential capture circuit and an alarm device.
[0021] Among them, one end of the electrostatic discharge capacitor is grounded, and the other end is connected to the work surface (it is equivalent to a capacitor), and its quantity can be one, or two or more discharge capacitors with different capacitances connected in parallel, for example, C1, C2, C3, C4. At this time, the plurality of discharge capacitors with different capacitances can realize the monitoring of different measurement ranges. Each capacitor is connected in series with selection switches K1, K2, K3, K4 for selectin...
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