Estimation of sound source level of underwater acoustic transducer in shallow water
Development and Application of Underwater Acoustic Transducer Sensor
Overview of the development of deep-water low-frequency transmitting underwater acoustic transducers
Design, Development and Application of Broadband Combined Underwater Acoustic Transducer
New Type of Underwater Acoustic Transducer and New Technology of Transducer
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Piezohannas
200Hz~600Hz Low Frequency Transmitting Transducer Underwater Acoustic Transducer
1. Measurement content:
1.1.1. Conductance and capacitance curves
Measure the transducer conductance and capacitance curves.
1.2. Send voltage response and sound source level
Measure the voltage response and sound source level sent by the transducer. The measurement frequency band is 200Hz~600Hz. The response at the resonant frequency is not less than 125dB and the sound source level is not less than 180dB.
1.3. Hydrostatic pressure: 0.5MPa.
2. Measurement data
After the transducer has passed the 0.5MPa/0.25h, 0MPa/0.25h, 0.5MPa/0.25h, 0MPa/0.25h hydrostatic pressure test, the insulation resistance between the core wires of the transducer is greater than 200MΩ. The acoustic performance measured after the hydrostatic test is as follows.
2.2.1. Conductance and capacitance curves
1.1. Transmitting voltage response and sound source level
01# | ||||||
f/kHz | d/m | U transmitting /V | U receiving/mv | M0/dB | SvL/dB | SL/dB |
200 | 1 | 1560 | 10 | -206.5 | 102.6 | 157.5 |
250 | 1 | 1550 | 20 | -206.5 | 108.7 | 163.5 |
300 | 1 | 1618 | 50 | -206.5 | 116.3 | 171.4 |
350 | 1 | 1734 | 120 | -206.5 | 123.3 | 179.0 |
400 | 1 | 1910 | 260 | -206.5 | 129.2 | 185.8 |
450 | 1 | 1862 | 150 | -206.5 | 124.6 | 181.0 |
500 | 1 | 1850 | 110 | -206.5 | 122.0 | 178.3 |
550 | 1 | 2098 | 100 | -206.5 | 120.1 | 177.5 |
600 | 1 | 2176 | 80 | -206.5 | 117.8 | 175.5 |
02# | ||||||
f/kHz | d/m | U transmitting /V | U receiving/mv | M0/dB | SvL/dB | SL/dB |
200 | 1 | 1606 | 10 | -206.5 | 102.4 | 157.5 |
250 | 1 | 1130 | 20 | -206.5 | 111.5 | 163.5 |
300 | 1 | 1526 | 50 | -206.5 | 116.8 | 171.4 |
350 | 1 | 1362 | 120 | -206.5 | 125.4 | 179.0 |
400 | 1 | 1916 | 210 | -206.5 | 127.3 | 183.9 |
450 | 1 | 2066 | 130 | -206.5 | 122.5 | 179.7 |
500 | 1 | 2086 | 90 | -206.5 | 119.2 | 176.5 |
550 | 1 | 1946 | 70 | -206.5 | 117.6 | 174.4 |
600 | 1 | 1722 | 60 | -206.5 | 117.3 | 173.0 |
200Hz~600Hz Low Frequency Transmitting Transducer Underwater Acoustic Transducer
1. Measurement content:
1.1.1. Conductance and capacitance curves
Measure the transducer conductance and capacitance curves.
1.2. Send voltage response and sound source level
Measure the voltage response and sound source level sent by the transducer. The measurement frequency band is 200Hz~600Hz. The response at the resonant frequency is not less than 125dB and the sound source level is not less than 180dB.
1.3. Hydrostatic pressure: 0.5MPa.
2. Measurement data
After the transducer has passed the 0.5MPa/0.25h, 0MPa/0.25h, 0.5MPa/0.25h, 0MPa/0.25h hydrostatic pressure test, the insulation resistance between the core wires of the transducer is greater than 200MΩ. The acoustic performance measured after the hydrostatic test is as follows.
2.2.1. Conductance and capacitance curves
1.1. Transmitting voltage response and sound source level
01# | ||||||
f/kHz | d/m | U transmitting /V | U receiving/mv | M0/dB | SvL/dB | SL/dB |
200 | 1 | 1560 | 10 | -206.5 | 102.6 | 157.5 |
250 | 1 | 1550 | 20 | -206.5 | 108.7 | 163.5 |
300 | 1 | 1618 | 50 | -206.5 | 116.3 | 171.4 |
350 | 1 | 1734 | 120 | -206.5 | 123.3 | 179.0 |
400 | 1 | 1910 | 260 | -206.5 | 129.2 | 185.8 |
450 | 1 | 1862 | 150 | -206.5 | 124.6 | 181.0 |
500 | 1 | 1850 | 110 | -206.5 | 122.0 | 178.3 |
550 | 1 | 2098 | 100 | -206.5 | 120.1 | 177.5 |
600 | 1 | 2176 | 80 | -206.5 | 117.8 | 175.5 |
02# | ||||||
f/kHz | d/m | U transmitting /V | U receiving/mv | M0/dB | SvL/dB | SL/dB |
200 | 1 | 1606 | 10 | -206.5 | 102.4 | 157.5 |
250 | 1 | 1130 | 20 | -206.5 | 111.5 | 163.5 |
300 | 1 | 1526 | 50 | -206.5 | 116.8 | 171.4 |
350 | 1 | 1362 | 120 | -206.5 | 125.4 | 179.0 |
400 | 1 | 1916 | 210 | -206.5 | 127.3 | 183.9 |
450 | 1 | 2066 | 130 | -206.5 | 122.5 | 179.7 |
500 | 1 | 2086 | 90 | -206.5 | 119.2 | 176.5 |
550 | 1 | 1946 | 70 | -206.5 | 117.6 | 174.4 |
600 | 1 | 1722 | 60 | -206.5 | 117.3 | 173.0 |
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