Abstract
Single element transducers were designed and built using shell sections of piezoelectric hollow spheres. The shell sections provide inherent focal depths and allow for the easy production of low f-number transducers. Because of the low f-numbers, these transducers have improved lateral resolution compared to other transducers operating at the same frequency. Spheres were mass-produced using the sacrificial core technique and had diameters of 1-3 mm and wall thickness from 20 to 120 μm. The lead titanate transducers described here had thickness mode resonance frequencies ranging from 25 MHz to 70 MHz. Electromechanical properties and pulse-echo response of these transducers were evaluated. Skin images taken with an Ultrasonic Backscatter Microscope at 55 MHz are also presented.
| Original language | English (US) |
|---|---|
| Pages | 741-744 |
| Number of pages | 4 |
| State | Published - 2000 |
| Event | 12th IEEE International Symposium on Applications of Ferroelectrics - Honolulu, HI, United States Duration: Jul 21 2000 → Aug 2 2000 |
Other
| Other | 12th IEEE International Symposium on Applications of Ferroelectrics |
|---|---|
| Country/Territory | United States |
| City | Honolulu, HI |
| Period | 7/21/00 → 8/2/00 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering