1kHz-200kHz High Frequency Hydrophone Acoustic Transducer for Sound Field Measurement

1kHz-200kHz High Frequency Hydrophone Acoustic Transducer for Sound Field Measurement

The HSRHS-10 hydrophone is one of the standard hydrophones in the spherical series. It uses piezoelectric ceramics as the transducer material. The ceramic tubes are arranged in two parallel and two strings to form a bamboo-like structure to improve the sensitivity and anti-interference ability of the hydrophone. The piezoelectric ceramic tubes are bonded and positioned with insulating washers. The ceramic tubes deform under the action of sound pressure, thereby generating electrical signals. The signal is amplified and converted into voltage output through the preamplifier inside the hydrophone.

1. The HSRHS-10 standard hydrophone has the following characteristics:

1. Good directionality. The hydrophone has no directivity horizontally, and no directivity within 240° of the vertical plane.

2. The frequency range is very wide, and it can be used for high frequency measurement above 200KHz.

3. Low sensitivity, suitable for high-intensity sound field measurement.

2. The main technical indicators of HSRHS-10 standard hydrophone:

Operating frequency range: 1kHz～200kHz

Linear frequency range: 1kHz～100kHz

Low frequency receiving sensitivity: -210dB

Horizontal directivity: ±2dB (200kHz)

Vertical directivity: ±2.5dB (200kHz, 240° range)

Maximum working depth: 300 meters

3. Directivity diagram of typical frequency

           200kHz horizontal directivity            200kHz vertical directivity

3. Sensitivity curve of free-field open circuit voltage

4. the external dimensions and the definition of the core wire at the end of the cable

Definition of the core wire at the end of the cable: red wire-signal +; black wire-signal -; shielded wire-ground wire; the standard length of the cable is 15 meters

4. Precautions for use and storage:

1. The piezoelectric element of the standard hydrophone is a fragile item, handle it with care during transportation and use, and pay attention to protection;

2. The standard hydrophone should be stored in a ventilated, dry and cool place to avoid rubber aging;