Custom 40khz Receiving Transmitting Spherical Transducer for Underwater Acoustic
Product Description
Custom 40khz Receiving Transmitting Spherical Transducer for Underwater Acoustic
1. Measurement content:
1.1. Transmit voltage response
Measure the transmit voltage response within the frequency band of 38kHz to 45kHz, and the response within the frequency band shall not be less than 140dB.
1.2. Receiving sensitivity
Measure the receiving sensitivity within the frequency band of 38kHz to 45kHz, and the response within the frequency band shall not be less than -202dB.
1.3. Horizontal directivity
Omnidirectional, measuring frequency 40kHz.
1.4. Vertical directivity
Not less than 180°, measuring frequency 40kHz.
1.5. Hydrostatic pressure: 2MPa.
2. Measurement data
Transmitting voltage response(dB)
F/kHz | SvL/dB |
38 | 145.0 |
39 | 145.4 |
40 | 145.8 |
41 | 145.3 |
42 | 145.0 |
43 | 144.8 |
44 | 144.6 |
45 | 144.2 |
1.
Receiving sensitivity（dB）
F/kHz | Mx/dB |
38 | -198.7 |
39 | -198.6 |
40 | -198.6 |
41 | -198.4 |
42 | -198.1 |
43 | -197.8 |
44 | -197.2 |
45 | -197.4 |
Horizontal directivity
Vertical directivity
Hydrostatic pressure test
After the transducer has been subjected to 2MPa/0.5h, 0MPa/0.25h, and 2MPa/0.5h hydrostatic pressure tests, the insulation resistance between the positive and negative electrodes of the transducer is greater than 100MΩ.