40kHz Cylinderical Communication Transducer for Underwater Sonar
Product Description
40kHz Cylinderical Communication Transducer for Underwater Sonar
Measurement Contents:
Conductivity and Susceptance Parameters:
Measuring the conductivity and susceptance parameters of the transducer.
Transmitting Voltage Response:
Measuring the transmitting voltage response of the transducer within the 30kHz–50kHz frequency band; the response should be no less than 140dB at 40kHz.
Vertical Directivity: The vertical directivity angle at 40kHz is (46.6±5)°.
Hydrostatic Pressure: 1MPa.
Measurement Data
Conductivity and Susceptance Parameters
202601# |
202602# |
||||
f/kHz |
G/ms |
B/ms |
f/kHz |
G/ms |
B/ms |
30 |
0.44 |
2.20 |
30 |
0.50 |
2.26 |
32 |
0.62 |
2.35 |
32 |
0.71 |
2.41 |
34 |
0.84 |
2.47 |
34 |
0.92 |
2.49 |
36 |
1.10 |
2.47 |
36 |
1.17 |
2.52 |
38 |
1.30 |
2.38 |
38 |
1.37 |
2.46 |
40 |
1.41 |
2.28 |
40 |
1.48 |
2.40 |
42 |
1.40 |
2.14 |
42 |
1.57 |
2.39 |
44 |
1.31 |
2.20 |
44 |
1.73 |
2.42 |
46 |
1.38 |
2.42 |
46 |
2.01 |
2.38 |
48 |
1.76 |
2.54 |
48 |
2.36 |
2.08 |
50 |
2.21 |
2.31 |
50 |
2.46 |
1.51 |
Transmitting voltage response(dB)
f/kHz |
202601# |
202602# |
30 |
143.3 |
143.8 |
32 |
145.7 |
145.8 |
34 |
147.3 |
146.6 |
36 |
148.9 |
148.5 |
38 |
149.2 |
149.0 |
40 |
150.3 |
150.0 |
42 |
151.0 |
150.2 |
44 |
150.5 |
149.7 |
46 |
150.2 |
148.5 |
48 |
150.9 |
149.0 |
50 |
151.3 |
149.5 |
Vertical Direction
Hydrostatic Pressure Test
After hydrostatic pressure tests of 3MPa/0.5h, 0MPa/0.25h, and 3MPa/0.5h, the insulation resistance between the positive and negative electrodes of both transducers was greater than 200MΩ.
Measurement Results: Both transducers met the technical specifications.