40kHz Cylinderical Acoustic Transducer for Underwater Acoustic Positioning
Product Description
40kHz Cylinderical Acoustic Transducer for Underwater Acoustic Positioning
Measurement Contents:
1.1. Conductivity and Susceptance Parameters: Measuring the transducer's conductivity and susceptance data.
1.2. Transmitting Voltage Response: Measuring the transmit voltage response within the 30kHz–50kHz frequency band; at 40kHz, it should be no less than 140dB.
1.3. ReceivingSensitivity: Measure the receiver sensitivity within the 30kHz–50kHz frequency band; at 40kHz, it should be no less than -198dB.
1.4. Directivity: Provide the transducer's horizontal and vertical directivity at 40kHz.
1.5. Hydrostatic Pressure: 3MPa.
2. Measurement Data:
Conductivity and Susceptance Parameters
f/kHz |
G/ms |
B/ms |
30 |
0.518 |
3.572 |
32 |
0.691 |
3.792 |
34 |
0.915 |
3.985 |
36 |
1.220 |
4.049 |
38 |
1.398 |
3.878 |
40 |
1.317 |
3.723 |
42 |
1.109 |
3.730 |
44 |
0.904 |
3.856 |
46 |
0.744 |
4.062 |
48 |
0.616 |
4.312 |
50 |
0.503 |
4.606 |
Transmitting voltage response
f/kHz |
SvL/dB |
30 |
136.4 |
32 |
138.5 |
34 |
139.9 |
36 |
141.6 |
38 |
143.3 |
40 |
142.5 |
42 |
140.2 |
44 |
140.4 |
46 |
138.8 |
48 |
137.5 |
50 |
137.0 |
Receiving Sensitivity
f/kHz |
Mx/dB |
30 |
-198.2 |
32 |
-195.9 |
34 |
-195.0 |
36 |
-194.3 |
38 |
-194.5 |
40 |
-195.1 |
42 |
-196.8 |
44 |
-196.6 |
46 |
-200.3 |
48 |
-202.8 |
50 |
-203.8 |
Horizontal Direction
Vertical Direction
Hydrostatic Pressure Test : After undergoing hydrostatic pressure tests at 3MPa/0.5h, 0MPa/0.25h, and 3MPa/0.5h, the insulation resistance between the positive and negative electrodes of the transducer was greater than 200MΩ.
Measurement Results: The transducer meets the technical specifications.