Hubei Hannas Tech Co.,Ltd－Professional Piezoceramic Elements Supplier
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Piezohannas
20kHz-30khz USBL Transducer Underwater Acoustic Positioning Transducer
Measurement Contents:
1. Receiving Transducer
1.1. Operating Frequency Band: 20kHz~30kHz.
1.2. Receiver Sensitivity: Better than -190dB@24k (3dB in-band ripple).
1.3. Directivity: Omnidirectional (3dB).
1.4. Maximum Operating Depth: 300m.
1.5. Number of Array Elements: 4.
2. Transmitting Transducer
2.1. Operating Frequency Band: 20kHz~30kHz.
2.2. Transmitting Response: Better than 132dB@24k (3dB in-band ripple).
2.3. Directivity: Horizontally omnidirectional, vertically greater than 180°.
2.4. Maximum Operating Depth: 300m;
Measurement Data
1. Receiving Transducer
1.1. Conductivity and Capacitance Curves
Receiving Sensitivity
2022-01#接收阵接收灵敏度/dB | ||||
f/kHz | 1# | 2# | 3# | 4# |
20 | -192.1 | -191.8 | -196.5 | -194.9 |
21 | -192.9 | -192.6 | -197.6 | -195.2 |
22 | -193 | -192.7 | -198 | -194.8 |
23 | -192.9 | -193.1 | -198.9 | -194.5 |
24 | -192 | -195.7 | -200.5 | -193 |
25 | -190.5 | -198.7 | -201.1 | -191 |
26 | -191.3 | -197.6 | -198.2 | -191.3 |
27 | -193.4 | -194 | -196.7 | -192.6 |
28 | -193.6 | -193.4 | -196.7 | -193.1 |
29 | -193.6 | -193.5 | -199 | -193.4 |
30 | -193.2 | -193.2 | -198.5 | -193.5 |
2022-02#接收阵接收灵敏度/dB | ||||
f/kHz | 1# | 2# | 3# | 4# |
20 | -192.7 | -192.8 | -195.7 | -193.9 |
21 | -193.3 | -193.7 | -195.5 | -193.5 |
22 | -193.6 | -193.2 | -195.8 | -194 |
23 | -194.6 | -194.3 | -197.3 | -193.4 |
24 | -193.2 | -196.7 | -197.7 | -192.3 |
25 | -193.2 | -195.4 | -196.1 | -191.5 |
26 | -193.2 | -193.7 | -194 | -192.1 |
27 | -193.6 | -194.1 | -195.4 | -192.5 |
28 | -193.9 | -193.1 | -194.7 | -192 |
29 | -194.1 | -193.6 | -196.3 | -192.1 |
30 | -195 | -193.9 | -196 | -192.1 |
Transmitting Transducer
Conductivity and capacitance curves
f/kHz | 2022-01# | 2022-02# |
20 | 135.7 | 136.2 |
21 | 138.6 | 137.3 |
22 | 139.6 | 137.3 |
23 | 138.7 | 140.2 |
24 | 141.3 | 141.7 |
25 | 141.7 | 139.6 |
26 | 138.7 | 137.6 |
27 | 138.3 | 138.5 |
28 | 139.3 | 135.5 |
29 | 135.9 | 134.8 |
30 | 137.7 | 138.8 |
Hydrostatic Pressure Test After undergoing hydrostatic pressure tests at 3MPa/1h, 0MPa/0.25h, 3MPa/1h, and 0MPa/0.25h, the insulation resistance between the transducer core wires and between the core wires and the outer casing was greater than 100MΩ.
Measurement Results: The transducer meets the technical specifications.
