FIELD: physics.
SUBSTANCE: condenser microphone capsules contains a protective cover, membrane, membrane housing o-ring, air gap, phase-shifting element and a stationary electrode with holes, with the area of all the holes in the fixed electrode shall be not less than 37% of the surface area of the membrane Dm and the holes in the fixed electrode located on the concentric circles, the diameters of which are subject to formula: Dc. res. n=0.72 Dm/n, where n is the number of concentric circles.
EFFECT: improvement of uniformity and ensure linear frequency characteristics of diffuse field sensitivity in the field of high frequencies.
2 dwg
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