Underwater Spherical Hydrophone for Underwater Acoustic

    Underwater Spherical Hydrophone for Underwater Acoustic 

1. The standard hydrophone has the following characteristics:

Good directionality. The hydrophone has no directivity horizontally, and no directivity within 240° of the vertical plane. The frequency range is wide and can cover most of the frequency bands for underwater acoustic measurement. The surface is fully covered with rubber to improve the corrosion resistance of various liquids. The structure is small, and the impact on the sound field is small.

2. The main technical indicators of standard hydrophones:

Operating frequency range: 20Hz～150kHz

Linear frequency range: 20Hz～80kHz

Low frequency receiving sensitivity: -202dB

Horizontal directivity: ±1.5dB (100kHz)

Vertical directivity: ±2.0dB (100kHz, 240° range)

Maximum working depth: 500 meters

3.Directivity diagram of typical frequency

100kHz horizontal directivity

100kHz vertical directivity 

4.sensitivity curve of Free-field open circuit voltage

5.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

6. Precautions for use and storage

1. 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;