Capacitor inspecting method
A test method and capacitance technology, which is applied in the directions of measuring electricity, measuring electrical variables, measuring resistance/reactance/impedance, etc., can solve the problems affecting the overall performance of the circuit and poor decoupling effect, so as to reduce the calibration error and ensure the application effect of effect
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[0016] Such as figure 1 A capacitance inspection method shown comprises the following steps:
[0017] ①Apply a sinusoidal alternating current with a frequency of 50 Hz and an effective value of voltage U at both ends of the circuit formed by the capacitor to be measured and the resistor R of known resistance in series;
[0018] ②The voltage U across the detection resistor R R ;
[0019] ③Calculate the voltage U across the capacitor to be tested C =U-U R ;
[0020] ④Calculate the series loop current I=U formed by the capacitance to be measured and the resistance R R / R;
[0021] ⑤ According to the calculated voltage U across the capacitor to be measured C and the loop current I using the formula C=I / (U C ×2 π f) Get the capacitance value C of the capacitor to be tested;
[0022] ⑥ Verify the difference of the capacitance C of the capacitance to be measured according to the capacitance value of the reference capacitance under the condition of sinusoidal alternating curr...
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