Hubei Hannas Tech Co.,Ltd－Professional Piezoceramic Elements Supplier
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Piezohannas
5khz-12khz Broadband FRR Transmitter Ring-type Transducer Large Depth Acoustic Transducer
Measurement Content:
1.1. Conductivity and Susceptance Curves: Measuring the conductivity and susceptance curves of the transducer.
1.2. Transmitting Response: Measuring the voltage transmitting response of the transducer from 5kHz to 12kHz, with a minimum of 144dB at 8kHz.
1.3. Source Level: The source level at the transducer's resonant frequency should be no less than 195dB.
1.4. Horizontal Directivity: Omnidirectional, measured at 8kHz.
1.5. Vertical Directivity: Half-space, frequency point of Measurement at 8kHz.
1.6. Hydrostatic Pressure: 60MPa.
2. Measurement Data: Two transducers were measured, and acoustic performance is as follows.
202601# | 202602# | |||
f/kHz | G/ms | B/ms | G/ms | B/ms |
5 | 0.769 | 4.960 | 0.930 | 4.988 |
5.5 | 1.055 | 5.718 | 1.462 | 5.681 |
6 | 1.824 | 6.336 | 2.211 | 5.958 |
6.5 | 2.551 | 6.495 | 3.007 | 6.004 |
7 | 3.774 | 6.475 | 4.081 | 5.204 |
7.5 | 4.658 | 5.384 | 3.320 | 4.076 |
8 | 3.113 | 3.549 | 2.073 | 4.150 |
8.5 | 1.672 | 4.426 | 1.655 | 4.857 |
9 | 1.398 | 5.284 | 1.519 | 5.387 |
9.5 | 1.276 | 5.766 | 1.416 | 5.729 |
10 | 1.101 | 6.220 | 1.228 | 6.062 |
10.5 | 0.901 | 6.751 | 1.008 | 6.577 |
11 | 0.926 | 7.249 | 1.041 | 6.951 |
11.5 | 0.829 | 7.673 | 0.899 | 7.384 |
12 | 0.747 | 8.141 | 0.819 | 7.828 |
f/kHz | 202601# | 202602# |
5 | 140.6 | 140.1 |
6 | 145.8 | 146.2 |
7 | 145.8 | 146.4 |
8 | 145.7 | 144.2 |
9 | 142.7 | 139.1 |
10 | 140.2 | 137.5 |
11 | 138.3 | 138.6 |
12 | 136.6 | 137.1 |
f/kHz | d/m | U transmitting/Vpp | U receiving/mVpp | M0/dB | SvL/dB | SL/dB | |
202601# | 7.5 | 3 | 860 | 82 | -217 | 146.1 | 195.8 |
202602# | 7 | 3 | 830 | 82 | -217 | 146.4 | 195.8 |
Horizontal Directivity
Hydrostatic Pressure Test:
After undergoing hydrostatic pressure testing at 60 MPa for 1 hour, 0 MPa for 0.25 hours, and 60 MPa for 1 hour, the insulation resistance between the positive and negative terminals of the transducer exceeds 100 MΩ.。
Measurement Results
the transducer meets the technical specifications after confirmation.
