14kHz-20kHz Transducer Spherical Hydrophone for Acoustic Modems
Product Description
14kHz-20kHz Transducer Spherical Hydrophone for Acoustic Modems
1.Measurement conditions
measuring distance | 1m～3m |
measuring depth | 1m～3m |
Measurement basis
GB/T 7965-2002 "Acoustic Underwater Acoustic Transducer Measurement".
2. Measurement content:
Working frequency band: 14kHz～20kHz.
Voltage emission response:
Measure the emission response in the working frequency band, where 16kHz is not less than 143dB; the sound source level is not less than 185dB.
Directivity: horizontal omnidirectional.
Hydrostatic pressure: 4MPa.
3. Measurement data:
1.
Transmit voltage response and sound source level (dB)
f/kHz | d/m | UF/VPP | UJ/mVPP | M0 | SvL/dB | SL/dB |
14 | 2 | 550 | 150 | -205.7 | 140.4 | 186.2 |
15 | 2 | 400 | 150 | -205.9 | 143.4 | 186.4 |
16 | 2 | 340 | 150 | -206.1 | 145.0 | 186.6 |
17 | 2 | 280 | 150 | -206.3 | 146.9 | 186.8 |
18 | 2 | 310 | 150 | -206.5 | 146.2 | 187.0 |
19 | 2 | 330 | 150 | -206.7 | 145.9 | 187.2 |
20 | 2 | 400 | 150 | -206.8 | 144.3 | 187.3 |
Directivity:
Hydrostatic pressure test：
After the transducer has undergone 4MPa/1h, 0MPa/0.25h, 4MPa/1h, 0MPa/0.25 hydrostatic pressure test, the insulation resistance between the positive and negative electrodes of the transducer is greater than 500MΩ.