A Piezo-Electric Loud Speaker for the Higher Audio Frequencies

• 1 October 1933
• journal article
• Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE
• Vol. 21  (10) , 1399-1408
• https://doi.org/10.1109/JRPROC.1933.227459

Abstract

Keywords

• FREQUENCY
• CAPACITIVE SENSORS
• HYSTERESIS
• LOUDSPEAKERS
• MUSIC
• SPEECH RECOGNITION
• INSTRUMENTS
• CRYSTALS
• CRYSTALLINE MATERIALS
• TEMPERATURE DEPENDENCE