The principle of the [pacific car] horn is that the car horns are sounded by the vibration of a metallic film, consisting of steel cores, magnetic wires, contact points, corsets, membranes, etc. When the driver presses the horn switch, the current points pass through the wire, which produces magnetic inhalation of the cortex, force membranes to move, the movement of the cortex to break the contacts, the interruption of the currents, the disappearance of the magnets of the cortex, the restoration of the film with the cortex under its own elasticity and spring, the reconnection of the contact closed circuit, and the currents generate magnetic force through the contact flow of the wire, thereby making sound。
Car horns divided by sound powerThe horn(b) an electric horn, which is divided into a barrel, a spiral and a basin; both loudspeakers and bass speakers are divided by sound frequency。
The air horn works using compressed air currents to cause membranes to vibrate and must therefore be usable above cars with air compressors. Air horns are usually mounted on buses and heavy trucks, especially when long-distance transport vehicles are travelling in mountainous areas or on bends, which effectively alert pedestrians and other drivers. Because of the volume of the horns, the sound of the rest, the sound of the sound and the distance. The air horns are generally in a barrel form and work in combination with two speakers with a bass。
The work of the speakers is based on the use of electromagnetic insulation to cause membrane vibrations. It is a loudspeaker, widely used in cars, divided into drums, spirals and basins in structural form, which are generally multi-formed into spirals or basins. (chart/text/photo: pacific autonet zonghong)
