Abstract
First in this paper, the loss in piezoelectric ceramics is described. Antiresonance is the vibration under constant D (electric displacement) driving, and therefore electro-mechanical loss becomes almost zero: resonance is the vibration under constant E (electric field) driving, and then there exists large electro-mechanical loss. The relations between antiresonance and the constant D driving are explained. Next, a method of measuring the high-power characteristics is described for antiresonance frequency. Experimental results for the quality factor and temperature rise and other equivalent constants are then shown as high-power characteristics obtained at the antiresonance frequency. Finally, some considerations for the stable-state driving of the high-power piezoelectric devices are described.
Original language | English (US) |
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Pages (from-to) | 213-217 |
Number of pages | 5 |
Journal | Ultrasonics |
Volume | 34 |
Issue number | 2-5 |
DOIs | |
State | Published - Jun 1996 |
All Science Journal Classification (ASJC) codes
- Acoustics and Ultrasonics