Stock 8khz-15khz Low Frequency Transmitting Transducers for Underwater Acoustic 

We independently developed acoustic transducer products cover a full range of hydrophones, transmitting transducers, transceiver transducers, sonar array transducers and ultrasonic transducers, covering overflow rings, flextensional and curved discs. and composite materials, etc., achieving full coverage from low to medium frequency to high frequency, from shallow water to 10,000-meter water depth, and can be widely used for listening and homing detection, communication networking, positioning and navigation, seabed surveying and mapping, forward-looking side scanning, industrial and medical ultrasound and other types of acoustic equipment.

Specification:

1.Measurement content

1.1. Conductance and capacitance curve

Measuring the conductance and capacitance curve of the transducer, and the resonant frequency should be (12.5±1.5) kHz.

1.2. Transmitting response and sound source level

Measure the response and sound source level of the transducer within 8kHz~15kHz, of which the response at 12kHz is not less than 130dB and the sound source level is not less than 185dB.

1.3. Horizontal directivity

Omnidirectional, measuring frequencies 8kHz, 12kHz, and 15kHz.

1.4. Vertical directivity

Measuring the vertical directivity of the transducer at 8kHz, 12kHz, and 15kHz, of which the vertical opening angle at 12kHz is greater than 50°.

1.5. Hydrostatic pressure: 4.5MPa.

2. Measurement data

1. 

2.1 Static Capacitance

2.2 Transmitting response and sound source level

2.3 Horizontal directivity

Vertical directivity

Hydrostatic pressure test

After the transducer was subjected to 4.5MPa/1h, 0MPa/0.25h, 4.5MPa/1h, 0MPa/0.25h hydrostatic pressure test, the insulation resistance between the positive and negative electrodes of the transducer was greater than 200MΩ.

Measurement results:

After inspection, all transducers met the technical index requirements.