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Stacked transducers for acoustic power projectors
Stacked transducers (also known as langevin or tonpilz transducers) are used to achieve the maximum power from a relatively small transducer.
Piezo ceramic rings are pre-stressed in a stacked transducer which is designed to project acoustic energy in one direction.
Designs with fundamental frequencies ranging from about 10 KHz to 100 KHz can be designed. For higher frequencies harmonic frequencies can be used.
These transducers can be supplied in an over-moulded or sealed housing for mounting on underwater vessels.
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