A calibration device and method for depositing electrostatic discharge current
An electrostatic discharge and calibration device technology, applied in the field of electronic communication, can solve problems such as damaging equipment and affecting calibration accuracy, and achieve the effects of ensuring stability, improving current measurement accuracy, and ensuring accuracy
Active Publication Date: 2020-09-22
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Problems solved by technology
[0004] At present, there are two methods for calibrating the current indicated by the DC microammeter. The first method is to use an external DC source to calibrate the microammeter head. At this time, the microammeter head needs to be removed from the device. , this method will destroy the equipment, and the DC current generated by the external DC source is different from the current generated by the deposited static electricity, thus affecting the accuracy of calibration; the second method is to directly connect the discharge head with a wire, and measure the current on the wire Compared with the current indicated by the microammeter on the discharge head, the current measured in this method is different from the discharge current generated by the actual working state of the deposition electrostatic simulator, which also affects the accuracy of calibration
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[0024] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0025] figure 1 It is a schematic diagram of an embodiment of a calibration device circuit for a deposition electrostatic discharge current, including a calibrated deposition electrostatic discharge simulator 101, a discharge target 102, a resistor 103, and a DC voltmeter 104. The simulator is used to generate a deposition electrostatic discharge curr...
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The present invention discloses a device and a method for calibration of a precipitation static discharge current. The problem of the calibration accuracy of a precipitation static discharge current is solved. The device comprises a calibrated precipitation static discharge current simulator, a discharge target, a resistor and a direct current voltmeter. The simulator is configured to generate a precipitation static discharge current and perform precipitation static discharge to the discharge target; the discharge target is connected with the resistor in series and is configured to receive theprecipitation static generated by the simulator and generate a direct current; the resistor is earthed; and the direct current voltmeter is configured to measure the voltage of the resistor. The method comprises the following steps of: regulating a high-voltage generator to generate a predetermined precipitation static discharge current, and recording indication of an ampere meter and indicationof the direct current voltmeter; employing the Ohm's law to obtain a direct current value flowing through the resistor; and performing calibration of the precipitation static discharge current according to the direct current value. The device and the method for calibration of the precipitation static discharge current can perform accurate calibration of the precipitation static discharge current.
Description
technical field [0001] The invention relates to the field of electronic communication, in particular to a device and method for calibrating deposition electrostatic discharge current of a simulator. Background technique [0002] When airplanes and other aircraft fly in the space atmosphere, the surface of the aircraft will be charged, and the discharge generated by the charge is called deposition electrostatic discharge. Electrostatic discharges from deposits can interfere with sensitive electronic equipment on board an aircraft. In order to study the impact of static electricity deposition on aircraft and aircraft, in order to take corresponding anti-interference measures, the commonly used method is to conduct anti-static static electricity tests on the equipment under test through a static electricity deposition simulator in a laboratory environment. When the deposition electrostatic simulator is used, the discharge head is close to the surface of the equipment under tes...
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IPC IPC(8): G01R35/02
CPCG01R35/02
Inventor 吴红森马蔚宇康宁王淞宇杨金涛
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT