Space charge measuring signal attenuation and dispersion factor compensation method
A technology for measuring signals and space charges, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., to achieve the effect of eliminating attenuation and dispersion process, high resolution and measurement accuracy, and eliminating influence
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[0019] figure 1 is the schematic diagram of space charge signal before phase inversion;
[0020] figure 2 is the schematic diagram of space charge signal after phase inversion;
[0021] image 3 It is a large-scale sample space charge measurement signal attenuation and dispersion factor compensation flow chart, including the following steps:
[0022] Step 301: Apply a low-voltage DC voltage to obtain a space charge measurement signal
[0023] Step 302: select the signal peaks at the inner and outer electrodes respectively as reference signals, and perform fast Fourier transform on them to obtain V(ω, a) and V(ω, b);
[0024] Step 303: Calculate and obtain the attenuation coefficient α(ω) and the dispersion coefficient β(ω);
[0025] Step 304: Obtain the system transfer function as G(ω);
[0026] Step 305: Perform fast Fourier transform on the restored and geometrically compensated measurement signal to obtain V s (ω,r);
[0027] Step 306: Perform attenuation and dispe...
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