Table 2 Output parameters of the miniature focused ultrasound transducer used for the in vivo capsule.
Voltage (Vpp) | WIN (mW) | WOUT (mW) | Efficiency (%) | Acoustic pressure (kPa) | IAC (Wcm−2) |
|---|---|---|---|---|---|
3 | 20.1 | 12.8 ± 1.0 | 63.7 ± 1.0 | 308.1 ± 058.5 | 1.0 ± 0.1 |
4 | 35.8 | 20.2 ± 3.2 | 56.4 ± 3.2 | 409.4 ± 077.8 | 1.4 ± 0.2 |
5 | 55.9 | 30.8 ± 4.2 | 55.1 ± 4.2 | 512.9 ± 097.5 | 2.2 ± 0.3 |
6 | 80.5 | 40.5 ± 4.0 | 50.3 ± 4.0 | 627.2 ± 119.2 | 2.9 ± 0.3 |
7 | 109.6 | 57.8 ± 4.3 | 52.7 ± 4.3 | 744.7 ± 141.5 | 4.2 ± 0.3 |
8 | 143.1 | 76.6 ± 5.6 | 53.5 ± 5.6 | 858.6 ± 163.1 | 5.4 ± 0.4 |
9 | 181.1 | 92.5 ± 6.6 | 51.1 ± 6.6 | 953.8 ± 181.2 | 6.5 ± 0.5 |
10 | 223.6 | 115.2 ± 8.1 | 51.5 ± 8.1 | 1100.4 ± 209.1 | 7.8 ± 0.6 |
