Stock 18KHz-34 KHz Cylindrical Communication Transducer Underwater Acoustic Transducer
Product Description
Stock 18KHz-34 KHz Cylindrical Communication Transducer Underwater Acoustic Transducer
Main Specifications | |
Working frequency bands | 18 kHz-34 kHz |
Maximum transmitting voltage response | ≥140dB@24k |
Maximum receiving sensitivity | ≥-185dB@24k |
horizontal directivity | omni-directional（±1.5dB） |
vertical directivity | ≥200°（-3dB） |
Other Specifications | |
Body size | Diameter 50mm，height 60mm |
Working depth | 300m（custom 2000m） |
Standard cable | 10m watertight cable（custom） |
Metal Materials | 316L/TC4（custom) |
Cable type | General cable/Load-bearing cable (optional) |
interface mode | Customizable (imported, domestic) |
Watertight connector | optional |
1.1. Conductance and capacitance
Measuring the conductivity and capacitance curves of the transducer in the frequency band of 1kHz to 50kHz, where the resonant frequency of the transducer should be in the range, and provide the resistance and capacitance data in the working frequency band.
1.2. Working frequency band
The working frequency band of the transducer is 18kHz-34kHz.
1.3. Transmitting response
Measuring the transmitting response in the working frequency band of the transducer, where the value at 25kHz is not less than 140dB.
1.4. Receiving sensitivity
Measuring the receiving sensitivity in the working frequency band of the transducer, where the value at 25kHz is not less than -190dB.
1.5. Horizontal directivity
Omnidirectional, measuring frequencies 18kHz, 25kHz, 34kHz.
1.6. Vertical directivity
Measuring the vertical directivity of the transducer at 18kHz, 25kHz, and 34kHz, where the opening angle at 25kHz should be not less than 200°.
1.7. Hydrostatic pressure test
The hydrostatic pressure resistance of the transducer should not be less than 3Mpa.
1.8. Cable
The transducer uses a two-core shielded cable with a cable length of 30m.
1.1. Conductivity and capacitance parameters
f/kHz | C/nF | G/ms |
18 | 10.38 | 0.28 |
19 | 10.65 | 0.38 |
20 | 10.92 | 0.54 |
21 | 10.91 | 0.78 |
22 | 9.92 | 1.08 |
23 | 7.71 | 1.36 |
24 | 4.83 | 1.44 |
25 | 2.30 | 1.29 |
26 | 1.23 | 0.97 |
27 | 1.35 | 0.72 |
28 | 1.71 | 0.58 |
29 | 1.99 | 0.49 |
30 | 2.21 | 0.41 |
31 | 2.45 | 0.34 |
32 | 2.66 | 0.29 |
33 | 2.87 | 0.25 |
34 | 3.07 | 0.21 |
1.1. Receiving sensitivity
f/kHz | Mx/dB |
18 | -184.9 |
19 | -184.2 |
20 | -184.1 |
21 | -184.2 |
22 | -183.7 |
23 | -182.7 |
24 | -180.5 |
25 | -180.5 |
26 | -181.9 |
27 | -181.7 |
28 | -182.9 |
29 | -183.4 |
30 | -184.8 |
31 | -185.2 |
32 | -186.0 |
33 | -187.8 |
34 | -188.0 |
1.2. Horizontal directivity
1.1. Vertical directivity
1.6. Hydrostatic pressure test
After the transducer has been subjected to 3MPa/1h, 0MPa/0.5h, 3MPa/1h, and 3MPa/0.5h hydrostatic pressure tests, the insulation resistance between the positive and negative electrodes of the transducer is greater than 200MΩ