Valve Noise Produced by Electrode Movement

The causes of valve noise are analyzed and the distinction is made between rattle noise and that produced by resonances. The contribution of various electodes to the total noise produced is discussed, and it is shown that the resonant frequencies of these electrodes may be calculated. Data are given proving the validity of these empirical equations. Methods of measuring noise are outlined. Finally, the implications of the findings are applied to valve-design improvements.