THE MEASUREMENT OF CAPACITANCE AND INDUCTANCE IN TERMS OF FREQUENCY AND RESISTANCE AT RADIO FREQUENCIES
C. P. Boner · Review of Scientific Instruments · 1930
A method of measuring capacitance and inductance is described, in which the product LC is found in terms of frequency by adjusting a circuit which contains the capacitance and an inductance to resonance, the ratio L/C is found in terms of resistance by a high frequency bridge, and the value of C is finally calculated by solving the two equations for LC and L/C simultaneously. A method of eliminating the effect of condenser leads is described. The bridge equations are derived and the effects of residuals in the arms are discussed. Details are given concerning the construction of the bridge, the oscillators, and the heterodyne detector, and concerning essentials of the operating technique. Numerical results are given for a sample condenser calibration.