|5862239||Directional capacitor microphone system|
In a capacitor microphone system for directional applications, an array of backplates of microphone cells are formed on a printed circuit (PC) board. A continuous strip of diaphragm is employed to cover each backplate. The diaphragm is stretched to create...
|5744965||System for continuously monitoring the integrity of an electrical contact connection|
A system for monitoring the integrity of electrical connections includes a transformer with its primary coupled across a dual split contact arrangement and the secondary coupled to both an energy source and a monitoring circuit. When the contact condition...