24khz Multibeam Echosounder Transducer for Echo-sounders
Product Description
24khz Multibeam Echosounder Transducer for Echo-sounders
Measurement content
1. Working frequency band
The working frequency band of the transducer is.
2. Transmitting response
Measure the transmitting response within the working frequency band of the transducer, of which the value at 24kHz should not be less than 165dB.
3. Receiving sensitivity
Measure the receiving sensitivity within the working frequency band of the transducer, of which the value at 24kHz should not be less than -178dB.
4. Directivity opening angle
@24kHz.
5. Hydrostatic pressure test
The hydrostatic pressure resistance of the transducer should not be less than 0.5Mpa.
Measurement data
1. Conductance and susceptance parameters
f/kHz | 2401# | 2402# | 2403# | |||
G/ms | B/ms | G/ms | B/ms | G/ms | B/ms | |
20 | 6.33 | 19.48 | 6.47 | 19.99 | 5.47 | 18.00 |
21 | 10.95 | 21.27 | 10.99 | 21.82 | 8.50 | 19.47 |
22 | 17.95 | 19.49 | 18.24 | 19.48 | 12.96 | 18.79 |
23 | 22.58 | 12.12 | 20.89 | 11.67 | 16.53 | 15.36 |
24 | 19.81 | 4.48 | 18.22 | 6.25 | 16.93 | 10.32 |
25 | 14.92 | 1.63 | 14.01 | 3.71 | 14.59 | 7.10 |
26 | 11.37 | 1.50 | 10.66 | 3.62 | 11.92 | 5.77 |
27 | 8.57 | 2.31 | 8.29 | 4.58 | 9.52 | 5.89 |
28 | 6.96 | 3.50 | 7.06 | 5.65 | 7.85 | 6.33 |
f/kHz | 2404# | 2405# | 2406# | |||
G/ms | B/ms | G/ms | B/ms | G/ms | B/ms | |
20 | 5.10 | 18.22 | 5.24 | 19.85 | 5.06 | 19.48 |
21 | 8.27 | 19.92 | 9.56 | 22.56 | 9.34 | 22.30 |
22 | 12.90 | 19.63 | 17.20 | 21.70 | 17.00 | 21.70 |
23 | 17.30 | 15.90 | 22.60 | 13.92 | 23.40 | 15.03 |
24 | 18.00 | 10.56 | 20.90 | 6.48 | 22.40 | 6.03 |
25 | 15.30 | 6.72 | 15.60 | 2.39 | 17.20 | 0.61 |
26 | 12.10 | 4.93 | 11.00 | 2.25 | 11.70 | 0.26 |
27 | 9.77 | 5.48 | 8.33 | 3.34 | 8.12 | 1.34 |
28 | 8.03 | 6.12 | 6.38 | 4.71 | 6.15 | 2.94 |
1.1. transmitting response（dB）
f/kHz | 2401# | 2402# | 2403# | 2404# | 2405# | 2406# |
20 | 162.4 | 163.6 | 162.0 | 161.3 | 162.8 | 161.5 |
21 | 164.9 | 166.5 | 164.2 | 163.9 | 165.4 | 164.4 |
22 | 166.6 | 168.4 | 166.0 | 165.8 | 167.9 | 166.4 |
23 | 168.2 | 169.1 | 167.4 | 167.2 | 169.2 | 167.8 |
24 | 168.4 | 169.2 | 167.7 | 167.5 | 169.1 | 167.9 |
25 | 167.3 | 168.5 | 166.9 | 167.3 | 168.3 | 167.0 |
26 | 165.9 | 167.3 | 166.2 | 166.2 | 167.1 | 165.5 |
27 | 165.1 | 166.4 | 165.3 | 165.4 | 165.9 | 164.0 |
28 | 164.3 | 165.9 | 164.8 | 164.9 | 165.2 | 163.1 |
1.2. Receiving sensitivity（dB）
f/kHz | 2401# | 2402# | 2403# | 2404# | 2405# | 2406# |
20 | -179.6 | -178.7 | -180.3 | -181.3 | -180.4 | -181.6 |
21 | -178.8 | -176.6 | -178.6 | -179.5 | -178.7 | -179.8 |
22 | -177.4 | -173.6 | -175.5 | -176.1 | -175.2 | -177.3 |
23 | -176 | -173.5 | -174.2 | -174.5 | -173.0 | -175.2 |
24 | -173.9 | -173.7 | -174.1 | -174.5 | -173.2 | -175.5 |
25 | -174.1 | -171.5 | -173.4 | -173.9 | -172.2 | -174.3 |
26 | -172.3 | -173.8 | -174.0 | -174.2 | -174.2 | -172.8 |
27 | -172.7 | -172.3 | -172.3 | -172.1 | -172.0 | -173.0 |
28 | -172.4 | -172.9 | -173.1 | -173.2 | -172.9 | -173.3 |
Directivity opening angle
1.3. Hydrostatic pressure test
After the transducer is subjected to 0.5MPa/1h, 0MPa/0.5h, 0.5MPa/1h, and 0MPa/0.5h hydrostatic pressure tests, the insulation resistance between the positive and negative electrodes of the transducer is greater than 200MΩ.