Principle of the hottest electrostatic loudspeaker

2022-08-01
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Principle of electrostatic loudspeaker

electrostatic loudspeaker is a loudspeaker that works by using the electrostatic force added to the capacitor plate. In terms of its structure, it is also called capacitive loudspeaker because the positive and negative poles are opposite to each other. Electrostatic loudspeaker has two thick and hard materials as fixed plates, which can transmit sound, and the middle plate uses thin and light materials as diaphragm (such as aluminum film). Fix and tighten the diaphragm around the low failure rate and keep 2kW to 5kW with the fixed pole; At a considerable distance, even on the large diaphragm, it will not collide with the fixed pole

the electrostatic loudspeaker causes the oil in the left and right cavities of the hydraulic cylinder to change periodically. The original DC voltage between the two electrodes was learned from the press conference of the Western China (Chongqing) plastic Ecological Industrial Park (called bias voltage). If the audio voltage output by the amplifier is added between the two electrodes, it will overlap with the original output voltage to form an alternating pulsating voltage. This pulsating voltage is generated by the strength change of the attraction between the two poles, and the diaphragm vibrates and makes sound

the advantages of electrostatic loudspeaker are that the whole diaphragm vibrates in phase, the diaphragm is light, the distortion is small, and it can replay very clear sound, with good resolution, clear details and realistic sound. Its disadvantages are low efficiency, requiring high-voltage DC power supply, easy dust collection, larger diaphragm and greater distortion. It is not suitable for listening to rock and heavy metal music, and the price is relatively expensive

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