20khz-30khz Spherical Communication Transducer for Communication Application
Product Description
20khz-30khz Spherical Communication Transducer for Communication Application
Technical Parameters：
1.1. conductance and susceptance parameters
Measure the conductance and susceptance curve parameters of the transducer.
1.2. Transmitting response
Measuring the transducer's transmitting response within the 20 kHz–30 kHz frequency band; the response at the resonant frequency shall be no less than 145 dB, with fluctuations not exceeding 3 dB.
1.3. Receiving sensitivity
Measure the transducer's receiving sensitivity within the 20 kHz–30 kHz frequency band; it shall be no less than -196 dB.
1.4. Horizontal directivity
Measure the horizontal directivity at 20 kHz, 25 kHz, and 30 kHz; fluctuations shall be less than 3 dB.
1.5. Hydrostatic pressure: 3 MPa.
2. Measurement Data
2.1. Conductance and susceptance parameters
f/kHz |
202601 |
202602 |
202603 |
|||
G/ms |
B/ms |
G/ms |
B/ms |
G/ms |
B/ms |
|
20 |
4.268 |
10.380 |
4.067 |
10.315 |
4.980 |
10.732 |
21 |
5.239 |
10.315 |
4.923 |
10.307 |
6.180 |
10.479 |
22 |
6.170 |
9.958 |
5.860 |
10.032 |
7.280 |
9.786 |
23 |
6.825 |
9.089 |
6.423 |
9.321 |
7.951 |
8.644 |
24 |
6.901 |
8.079 |
6.662 |
8.476 |
7.940 |
7.364 |
25 |
6.553 |
7.370 |
6.412 |
7.764 |
7.366 |
6.408 |
26 |
6.029 |
6.865 |
5.951 |
7.139 |
6.584 |
5.850 |
27 |
5.336 |
6.623 |
5.238 |
6.946 |
5.739 |
5.642 |
28 |
4.633 |
6.639 |
4.579 |
6.964 |
5.008 |
5.724 |
29 |
4.060 |
6.876 |
4.011 |
7.151 |
4.347 |
5.975 |
30 |
3.591 |
7.218 |
3.510 |
7.473 |
3.823 |
6.285 |
f/kHz |
202604 |
202605 |
||
G/ms |
B/ms |
G/ms |
B/ms |
|
20 |
4.003 |
10.357 |
4.904 |
10.786 |
21 |
4.991 |
10.366 |
6.159 |
10.635 |
22 |
5.988 |
10.057 |
7.341 |
10.074 |
23 |
6.770 |
9.135 |
8.296 |
8.874 |
24 |
6.802 |
8.092 |
8.303 |
7.306 |
25 |
6.482 |
7.345 |
7.654 |
6.225 |
26 |
5.936 |
6.870 |
6.777 |
5.652 |
27 |
5.165 |
6.561 |
5.882 |
5.394 |
28 |
4.475 |
6.697 |
5.061 |
5.484 |
29 |
3.912 |
6.922 |
4.377 |
5.735 |
30 |
3.443 |
7.264 |
3.830 |
6.088 |
Transmitting response（dB）
f/kHz |
202601 |
202602 |
202603 |
202604 |
202605 |
20 |
145.3 |
144.7 |
144.6 |
145.2 |
145.4 |
21 |
145.6 |
144.8 |
144.9 |
145.9 |
145.6 |
22 |
146.1 |
146.4 |
145.7 |
146.6 |
146.6 |
23 |
147.2 |
147.3 |
146.2 |
147.3 |
147.7 |
24 |
147.6 |
147.5 |
147.3 |
148.1 |
147.8 |
25 |
147.0 |
147.1 |
147.3 |
147.9 |
148.3 |
26 |
146.7 |
146.9 |
147.3 |
147.8 |
148.3 |
27 |
146.7 |
146.6 |
147.3 |
147.3 |
148.3 |
28 |
146.6 |
146.3 |
146.8 |
146.7 |
148.0 |
29 |
146.5 |
146.3 |
146.6 |
146.1 |
147.7 |
30 |
145.0 |
145.1 |
145.1 |
145.9 |
146.3 |
Receiving sensitivity (dB)
f/kHz |
202601 |
202602 |
202603 |
202604 |
202605 |
20 |
-194.9 |
-195.2 |
-194.1 |
-193.7 |
-195.4 |
21 |
-193.4 |
-193.9 |
-193.3 |
-193.7 |
-194.7 |
22 |
-193.0 |
-192.9 |
-193.3 |
-193.9 |
-194.1 |
23 |
-192.7 |
-192.0 |
-192.4 |
-193.3 |
-193.6 |
24 |
-191.7 |
-191.4 |
-192.0 |
-193.2 |
-192.6 |
25 |
-191.6 |
-191.7 |
-192.4 |
-192.7 |
-192.6 |
26 |
-190.7 |
-190.6 |
-192.0 |
-193.0 |
-192.6 |
27 |
-190.5 |
-189.8 |
-191.5 |
-192.4 |
-192.7 |
28 |
-191.1 |
-190.4 |
-192.2 |
-192.4 |
-192.7 |
29 |
-191.1 |
-190.5 |
-192.8 |
-193.5 |
-193.3 |
30 |
-192.3 |
-191.7 |
-193.6 |
-194.2 |
-194.9 |
1.
1.1.
Horizontal Directivity
Application:
Underwater Acoustics Research
Acoustic Field Calibration
Military and Scientific Applications
Hydrostatic Pressure Test
After undergoing hydrostatic pressure testing at 3 MPa for 0.5 h, 0 MPa for 0.25 h, and 3 MPa for 0.5 h, the insulation resistance between the positive and negative terminals of the transducer exceeds 100 MΩ.
Measurement Results:
The transducer's performance meets the specified requirements.