Cheap 28khz Cylindrical Acoustic Transducers for Underwater Positioning

Cheap 28khz Cylindrical Acoustic Transducers for Underwater Positioning

1. Measurement content:

Resonant frequency：

Voltage Transmitting Response and Sound Source Level:

At the resonant frequency, the response must be no less than 141dB, the sound source level must be no less than 196dB, and the transmit response bandwidth must be no less than 3.5kHz.

Receiver Sensitivity: No less than -189dB at the resonant frequency.

Hydrostatic Pressure: 7MPa.

Measurement Data

There are two transducers, 202501# and 202502#. The measurement data is as follows.

Resistor and Capacitor Parameters

Resistor and Capacitor Parameters

Transmitting voltage response and sound source level (dB)

Receiving sensitivity（dB）

Hydrostatic Pressure Test:

Afte hydrostatic pressure tests at 7 MPa/1 hour, 0 MPa/0.25 hour, and 7 MPa/1 hour, the insulation resistance between the positive and negative electrodes of both transducers was greater than 100 MΩ.

Application:

Underwater Acoustics Research 

Acoustic Field Calibration

Military and Scientific Applications