Electrostatic potential monitoring device and electrostatic potential monitoring method

A technology of electrostatic potential and monitoring devices, which is applied in the direction of measuring devices, static electricity, measuring current/voltage, etc., can solve the problems of unrealized real-time monitoring of anti-static work and traceable records of exceeding standards, and lack of on-line monitoring capabilities for on-site electrostatic protection. Achieve the effect of traceable, accurate and real-time monitoring

Active Publication Date: 2017-01-04
BEIJING DONGFANG MEASUREMENT & TEST INST
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  • Abstract
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Problems solved by technology

[0004] However, the current laboratories and workshops do not have on-line monitoring capabilities for on-site electrostatic protection, and have not realized real-time monitoring of internal electrostatic potential in anti-static work and traceable records of exceeding standards

Method used

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  • Electrostatic potential monitoring device and electrostatic potential monitoring method
  • Electrostatic potential monitoring device and electrostatic potential monitoring method

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Embodiment Construction

[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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Abstract

The invention relates to an electrostatic potential monitoring device and an electrostatic potential monitoring method. The electrostatic potential monitoring device comprises a potential capture circuit and an alarm device. The electrostatic potential monitoring device is characterized in that the device further comprises electrostatic discharge capacitors and voltage comparators; the electrostatic discharge capacitors are connected with a working table and can be charged by charges on the working table; one end of the electrostatic discharge capacitors is grounded, and the other end is connected with the input ends of the voltage comparators; and the other input ends of the voltage comparators are connected with a comparison voltage, the output ends are connected with a controller, and the controller is connected with the alarm device.

Description

technical field [0001] The invention relates to an electrostatic device, which can be used to monitor the electrostatic voltage of equipment or human body. Background technique [0002] The static electricity problem in the electronic field has become one of the important factors that cannot be ignored in recent years. This problem has been paid special attention in the current laboratory and assembly workshop. At present, in the field of static electricity protection, the static electricity protection voltage has been specially set for the harm of static electricity. Control level, level two (200V), level three (1000V), etc., level one (100V) is relatively small, in the satellite test workshop involving electrostatic discharge sensitive electronic products or on-board operations, the general electrostatic protection level control is more stringent. [0003] At present, all electronic production lines and laboratories in China are basically equipped with protective equipment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/24G01R19/165H05F3/00
CPCG01R19/16528G01R29/24H05F3/00
Inventor 高志良宋博季启政路子威李振
Owner BEIJING DONGFANG MEASUREMENT & TEST INST
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