Horn_loudspeaker_animation.gif (596 × 523 píxeles; tamaño de archivo: 152 kB; tipo MIME: image/gif, bucleado, 4 frames, 0,4s)
Este archivo es de Wikimedia Commons y puede usarse en otros proyectos. La descripción en su página de descripción del archivo se muestra debajo.
Resumen
DescripciónHorn loudspeaker animation.gif
English: Animation showing how a horn loudspeaker works. The image shows a cross section through the center of the speaker. Horn speakers are used as tweeters and midrange drivers in audio speaker systems, and in public address systems. A horn speaker consists of a special diaphragm loudspeaker called a compression driver(A), attached to a flaring horn (B) which conducts the sound waves (grey) to the open air. The driver contains a stiff metal diaphragm (blue) that is vibrated by the audio signal current passing through a coil of wire (red) between the poles of a magnet (green). The diaphragm pushes against the air creating sound waves. The horn couples the sound waves efficiently to the outside air, increasing the acoustic impedance, enabling the driver to radiate more of its power as sound waves, increasing the loudness of the sound. The diaphragm of the driver is larger than the entrance throat of the horn, creating a high sound pressure in the horn to improve the efficiency. The advantage of a horn speaker is that it is more efficient than a cone speaker; it can typically produce 10 dB more sound from a given amplifier power.
The rate of vibration in the animation is greatly slowed down.
La persona que ha asociado una obra a este documento lo dedica al dominio público mediante la cesión mundial de sus derechos bajo la ley de derechos de autor y todos los derechos legales adyacentes propios de dicha, en el ámbito permitido por ley. Puedes copiar, modificar, distribuir y reproducir el trabajo, incluso con objetivos comerciales, sin pedir aprobación del autor.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
Leyendas
Añade una explicación corta acerca de lo que representa este archivo