Development of piezoceramic electroacoustic transducers for acoustic devices with a sound pressure of 125 dB or more

Abstract

The increased sound pressure level of piezoceramic electroacoustic transducers is important for acoustic devices designed to create high-intensity sound, 125 decibels or more. This is especially true of acoustic devices that use a group of transducers. An electroacoustic transducer that develops a higher sound pressure can greatly reduce the number of radiating elements in an acoustic device. In the performed work electroacoustic transducers are created that capable to develop sound pressure level up to 125 dB. The article presents the results of the development of electroacoustic transducers for three frequency versions. The scheme of the generator of the exciting voltage for electroacoustic converters with the raised sound pressure is offered and investigated. The result is particularly relevant when used in multi-element sound-emitting devices, as repeatedly reduces the required number of converters to achieve the same result.