Abstract
This article concerns the design of a new electrostatic transducer whose backplate consists of a series of drilled pipes. A new one-dimensional model is derived which considers the interaction of the membrane with the air load, the air cavities, and the drilled pipes in the backplate. Dynamic equations for the impedance in each component of the device are calculated analytically and connected using interface conditions of continuity of pressure and radiation conditions into the air load. The model is able to produce solutions to the mechanical impedance of the device and the displacement of the membrane as a function of the device’s design parameters. Model results for the output pressure compare well with previous experimental data. The inverse problem of retrieving the design parameters for a desired output is discussed
Original language | English |
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Title of host publication | 2008 IEEE Ultrasonics Symposium |
Subtitle of host publication | Proceedings of a meeting held 2-5 November 2008, Beijing, China |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 1409-1412 |
ISBN (Electronic) | 9781424424801 |
DOIs | |
Publication status | E-pub ahead of print - 1 Jan 2009 |
Event | IEEE International Ultrasonics Symposium, Beijing, China, 2008 - Location unknown - please update Duration: 1 Jan 2009 → 1 Jan 2009 |
Conference
Conference | IEEE International Ultrasonics Symposium, Beijing, China, 2008 |
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Period | 1/01/09 → 1/01/09 |
Keywords
- electrostatic transducer
- resonating conduits