8kHz-15kHz Transmitting Transducer Cylindrical Underwater Acoustic Transducer
Product Description
8kHz-15kHz Transmitting Transducer Cylindrical Underwater Acoustic Transducer
1. Measurement content
1.1. Conductance and capacitance curve
Measuring the conductance and capacitance curve of the transducer, and the resonant frequency should be (12.5±1.5) kHz.
1.2. Transmitting response and sound source level
Measure the response and sound source level of the transducer within 8kHz~15kHz, of which the response at 12kHz is not less than 130dB and the sound source level is not less than 185dB.
1.3. Horizontal directivity
Omnidirectional, measuring frequencies 8kHz, 12kHz, and 15kHz.
1.4. Vertical directivity
Measuring the vertical directivity of the transducer at 8kHz, 12kHz, and 15kHz, of which the vertical opening angle at 12kHz is greater than 50°.
1.5. Hydrostatic pressure: 4.5MPa.
2. Measurement data
2.1 Static Capacitance
8kHz-15kHz transducer 202401# | ||
f/kHz | C/nF | R/Ω |
8 | 28.38 | 13193 |
8.5 | 28.41 | 9515 |
9 | 28.51 | 7337 |
9.5 | 28.44 | 5537 |
10 | 27.98 | 4261 |
10.5 | 27.31 | 3505 |
11 | 26.46 | 3347 |
11.5 | 26.39 | 3510 |
12 | 25.42 | 2564 |
12.5 | 24.12 | 3043 |
13 | 23.78 | 3761 |
13.5 | 23.83 | 4527 |
14 | 23.94 | 5258 |
14.5 | 24.07 | 5910 |
15 | 24.16 | 6636 |
Transmitting voltage response (dB)
8kHz-15kHz transducer 202401# | ||||||
f/kHz | d换/m | U发/Vpp | U收/mVpp | M0/dB | SvL/dB | SL/dB |
8 | 1.23 | 780 | 23.06 | -217 | 128.2 | 177.0 |
9 | 1.23 | 780 | 38.25 | -217.2 | 132.8 | 181.6 |
10 | 1.23 | 780 | 51 | -217.3 | 135.4 | 184.2 |
11 | 1.23 | 780 | 54.38 | -217.2 | 135.9 | 184.7 |
12 | 1.23 | 780 | 66.56 | -217.4 | 137.8 | 186.6 |
13 | 1.23 | 780 | 63.56 | -217.7 | 137.7 | 186.5 |
14 | 1.23 | 780 | 52.31 | -217.7 | 136.0 | 184.8 |
15 | 1.23 | 780 | 48 | -217.5 | 135.1 | 183.9 |
2.3 Horizontal directivity
Vertical directivity
Hydrostatic pressure test
After the transducer was subjected to 4.5MPa/1h, 0MPa/0.25h, 4.5MPa/1h, 0MPa/0.25h hydrostatic pressure test, the insulation resistance between the positive and negative electrodes of the transducer was greater than 200MΩ.
Measurement results:
After inspection, all transducers met the technical index requirements.