ON THE MEASUREMENT OF THE STRAY CAPACITANCE OF SINGLE LAYER AIR SOLENOIDS
Andrea Mariscotti
Abstract:
Low stray capacitance solenoids are air solenoids, possibly single layer, with significant turn-to-turn spacing. The problem of the correct estimation of the stray capacitance is relevant both during design and to validate measurement results. The expected value is so low that any stray capacitance of the external instruments is relevant; a simplified method is proposed that doesn’t perturb the stray capacitance of the solenoid under test. The method is based on the resonance with an external capacitor and on the use of a linear regression technique.
