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.