Electrostatic detection device

Abstract

The invention provides an electrostatic detection device, and belongs to the field of electrostatic measurement. A cover-shaped metal front electrostatic induction electrode is arranged at the front end of a shielding device, and at least one part of a vibration electrode is covered in a three-dimensional space in the front electrostatic induction electrode; the vibration electrode needle detectsthe induced electrostatic charge on the front electrostatic induction electrode; and the front electrostatic induction electrode and the shielding device are electrically connected and fixed togetherin an insulated mode. The cover-shaped front electrostatic induction electrode is arranged, so that the vibration electrode is in a complete shielding state, the effect of shielding an external step signal is achieved, and the detection accuracy of the electrostatic detection device can be improved; and the cover-shaped front electrostatic induction electrode with a three-dimensional structure isarranged, so that electrostatic charge detection on a three-dimensional curved surface is realized. The electrostatic detection device can be widely applied to the field of design and manufacturing ofelectrostatic detection devices.

Description

Technical field [0001] The invention belongs to the field of static electricity measurement, and in particular relates to a device for measuring static electricity. Background technique [0002] Electrostatic sensors and / or electrostatic detection meters are special and precise instruments for monitoring static electricity on the surface of objects, which play a very important role in static electricity measurement and protection. [0003] In the production line of electronic factories, static monitoring of products is an important guarantee to prevent products from being harmed by static discharge and ensure product quality. In the flammable and explosive environment, the electrostatic discharge electrode is easy to cause combustion and explosion, so the monitoring of static electricity is particularly important and has become a necessary measure for safe production. Therefore, with the development of the industry, the function and performance requirements of electrostatic sensor...

AI Technical Summary

Problems solved by technology

[0008] 2. The shielding structure has an important influence on the electric field distribution between the electrostatic source and space charge, the grounding shielding device and the vibrating electrode. Unreasonable setting of the shielding structure can easily lead to nonlinear distortion of electrostatic signal detection

[0010] 1) The vibrating electrode is close to the shielding device, the shielding depth is too shallow, and the test accuracy is low, that is, the ability to distinguish the plane distribution of electrostatic charges on the surface of the object is low

[0011] 2) The shielding of the existing electrostatic sensors and / or detection meters for the vibrating electrodes is not completely shielded, and there are detection windows, which cannot completely shield the external step signal

[0012] 3) The detection object is only for the electrostatic charge in the two-dimensional plane, and when the object to be detected is a three-dimensional curved surface, it is impossible to conveniently detect it at the same time or comprehensively detect it

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