The Influence of Alarm Siren Structure Parameters on Output Sound Pressure Level

The paper is a discussion of the construction of an alarm siren based on the active piezoelectric element. The in uence of various parameters on the loudness of the siren was investigated. E orts to increase the e ciency of selected design were made. The simulations carried out based on an ANSYS. Individual dimensions of a piezoelectric transducer were selected as well as a collaborate diaphragm. The possibility of using di erent piezoelectric materials was also analyzed. All tasks and computer simulations were aimed at receiving a siren structure able to obtain the highest sound pressure level at selected frequency.