Assuming the electromagnetic wave propagation velocity v. Assuming discharge points c and a near distance, with the distance b between the far, then a Department of the sensor will be ratio B at sensor first received signal,
If the velocity of electromagnetic wave v.If the discharge point of C and A close distance, and the distance between a and B far, so A sensor will be greater than B sensor at the first received signal,
Assuming the velocity of propagation of electromagnetic waves to v. Assuming that discharge point c and a closer, and the distance between a and b, a sensor will be smaller than the b sensor receives the signal,