Open Access
Table 1
Table of distances and heights.
| Variable | Distance between | Value (mm) |
|---|---|---|
| z f | The transducer1 and the hydrophone | 28 (1 MHz), 39 (2.25 MHz) |
| D (high water level) | The transducer1 and the water–air interface | 700 |
| D (low water level) | The transducer1 and the water–air interface | 46.3 |
| h | The transducer1 and the Petri dish2 | 25 (1 MHz), 36 (2.25 MHz) |
| a | The Petri dish3 and the hydrophone | 2.2 |
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