Sound Radiation from a Dual Microflim Piezoelectric Loudspeaker in Free Space

Mellow TJ. Sound Radiation from a Dual Microflim Piezoelectric Loudspeaker in Free Space. In: AES Convention 116. Audio Engineering Society; 2004. Paper 6156. Available from: https://aes.org/publications/elibrary-page/?id=12704

@inproceedings{Mellow2004_12704,
  author = {Mellow, Tim J.},
  title = {{Sound Radiation from a Dual Microflim Piezoelectric Loudspeaker in Free Space}},
  booktitle = {AES Convention 116},
  note = {Paper 6156},
  year = {2004},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12704}
}

TY  - CPAPER
TI  - Sound Radiation from a Dual Microflim Piezoelectric Loudspeaker in Free Space
AU  - Mellow, Tim J.
T2  - AES Convention 116
M1  - Paper 6156
PY  - 2004
DA  - 2004/05/06
UR  - https://aes.org/publications/elibrary-page/?id=12704
PB  - Audio Engineering Society
LA  - en
AB  - Radiation characteristics of a concept loudspeaker are calculated both analytically and using finite element analysis. It comprises two closely spaced stretched piezoelectric membranes pushed apart by a pressurized gas. A drive voltage applied across conductive coatings on both membranes causes their tensions to vary in opposite phase and consequently the membranes are displaced in the same direction. Driven by a class D amplifier, this transducer potentially offers higher efficiency than conventional moving coil technology but with the smooth response and light weight of electrostatic devices. However, the voltage requirement is lower and the potential SPL higher than the latter. The only remaining question is whether it can be manufactured economically.
ER  -