Current parameter calibration system and method based on standard electromagnetic valve and oscilloscope
A technology of current parameter and calibration system, applied in instruments, measuring electrical variables, measuring devices, etc., can solve problems such as damage to special measuring equipment, and achieve the effect of simple structure, simple circuit structure, and accurate calibration results
Pending Publication Date: 2020-08-14
西安航天计量测试研究所
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The invention relates to a current parameter calibration system and method, and especially relates to a current parameter calibration system and method based on a standard electromagnetic valve and anoscilloscope. Accurate calibration of special test equipment is realized, after the equipment is powered on, the special test equipment, the standard electromagnetic valve, a sampling resistor and aprogrammable power supply form a closed loop, and the current on the sampling resistor is the current of the standard electromagnetic valve. The voltage at two ends of the sampling resistor is acquired through the oscilloscope to obtain a voltage curve; and according to the ohm law, a current curve is obtained through calculation, a steady-state current value, namely a standard current, is obtained through analysis, and calibration is achieved by comparing the steady-state current value with a measured current value.
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