A vibrating condenser manometer
J L Williams, G F Eveson · Journal of Scientific Instruments · 1958
The principle of the use of a vibrating capacitor to measure small displacements has been applied in an instrument to record cyclic fluctuations of air pressure. A summary is made of the results of simple experiments carried out to investigate factors influencing the amplitude of the signal generated by a vibrating capacitor. A description is given of a simple, robust instrument which has been used to measure fluctuating air pressures and reference is made to the characteristics of the instrument.