APC INTERNATIONAL LTD.: Piezoelectric Air Transducers
This company now offers piezoelectric air transducers that contain a piezoelectric ceramic element mounted in an aluminum, plastic, or environmental housing. The transducers are available in 25, 40 and 300 kHz signal frequency, and can reportedly provide high sensitivity, excellent sound pressure level, and stable electrical and mechanical characteristics. The air transducers are available in 10-25 mm diameter sizes, and in matched pairs.
For more information, visit www.americanpiezo.com.