23.5kHz Cylindrical Underwater Acoustic Transducer for Underwater Communications
Product Description
23.5kHz Cylindrical Underwater Acoustic Transducer for Underwater Communications
Technical Parameters：
Technical parameters | |
| Model | YH-T235 |
Resonant frequency | 24kHz |
Working frequency | 15kHz-35kHz |
Horizontal directivity | omni-directional±2dB |
vertical directivity | Hemisphere type |
Impedance at resonance point | 3400Ω |
Input maximum electric power | 400W impulse condition |
Working depth | 2000M |
material | aluminium alloy PVC |
Cable model | Dia.5mm,Polyurethane sheath |
Cable length | Standard 3 meters, extra lengths need to be ordered separately |
storage temperature | -40 - +80 ºC |
operating temperature | -5 - +70 ºC |
Application:
Underwater Acoustics Research
Acoustic Field Calibration
Military and Scientific Applications
Types of Underwater acoustic transducer
Product main categories and characteristics:
1 Hemispherical deep-water transducer*
- Resonnance frequency Fr (kHz) : 12 to 40
- Working frequency range (kHz) : 7 to 50
- Transmitting voltage response @Fr (dB) : 137 to 133
- Receiving sensivity @Fr (dB) : -176 to -195
- Sound source level @Fr (dB) : 195 to 185
Can work till 6000m underwater.
Can be used for vertical channel acoustic communication, acoustic release transponder,
USBL positioning system.
2 Broadband cylindrical transducer*
- Resonnance frequency Fr (kHz) : 10 to 75
- Working frequency range (kHz) : 6 to 100
- Impedance @Fr (Ohms) : 800 to 1300
- Capacitance (nF) : 105 to 10
- Beam angle @Fr (-3dB, degrees) : 50 to 25
- Transmitting voltage response @Fr (dB) : 140 t0 143
Can work till 300m underwater.
Can be used for acoustic calibration, acoustic long distance communication, underwater acoustic
simulator, hydrophone.
3 Broadband Topilz transducer*
- Resonnance frequency Fr (kHz) : 4 to 60
- Working frequency range (kHz) : 3 to 75
- Beam angle @Fr (-3dB, degrees) : 90 to 60
- Sound source level @Fr (dB) : 195
Can work till 6000m underwater.
Can be used for vertical channel acoustic communication, single beam echosounder, active sonar,...
4 1-3 composite high-frequency broadband spherical crown transducer*
- Resonnance frequency Fr (kHz) : 150 to 600
- Working frequency range (kHz) : 100 to 800
- Spherical beam angle @Fr (degrees) : 40
- Curvature radius (mm) : 120
- Transmitting source level @Fr (dB) : >= 200/205
Can be used for directional high-frequency standard sound source, communication system,
3-dimmensional sonar,...
5 1-3 composite high-frequency broadband cylindrical crown transducer*
- Resonnance frequency Fr (kHz) : 150 to 600
- Working frequency range (kHz) : 100 to 800
- Vertical beam angle @Fr (degrees) : 20
- Transmitting source level @Fr (dB) : >= 195
Can be used for directional high-frequency standard sound source, multibeam, echosounder,
communication system.
6 1-3 composite high-frequency broadband piston transducer*
- Resonnance frequency Fr (kHz) : 150 to 1200
- Working frequency range (kHz) : 45 to 360
- Impedance @Fr (kHz) : 120 to 35
- Capacitance (pF) : 10000 to 2500
- Beam angle @Fr (degrees. - 3dB) : 5 to 2.7
- Receive sensivity (dB, Ref. 1 Volt/microPa) : - 176 to -195
- Transmit voltage response (dB, Ref. 1 microPa/Volt): 179 to 189
Used for ADCP/DVL, single beam echo-sounder, parametric acoustic sonar,
directional high-frequency communication system,...
7 BD series flexural disk low-frequency transducer*
- Resonnance frequency Fr (kHz) : 0.5 to 6
- Working frequency range (kHz) : 0.4 to 12
- Transmitting voltage response @Fr (dB) : 130 to 146
- Sound source level @Fr (dB) : 196 to 180
Can be used for low frequency sound source, long distance communication system,
low frequency passive receiving,...
8 SP series spherical transducer*
- Resonnance frequency Fr (kHz) : 15 to 60
- Working frequency range (kHz) : 8 to 100
- Transmitting voltage response @Fr (dB) : >= 145
- Sound source level @Fr (dB) : 192
Used as wideband sound source, hydrophones.
2. Calibration of Vector Hydrophones in Deep Water ,The maximum working depth can reach 3000m, which can be used for oil-filled linear array elements
3. The highest emission response of the stacked spherical acoustic transducer can reach 156dB, and the highest sound source level can reach 202dB, which is more than 6dB higher than ordinary spherical transducers of the same size.
4. single-crystal vector hydrophone transducer
Compared with piezoelectric ceramic transducers, the size of PIN-PMN-PT single crystal transmitting transducer is reduced by more than 1/3, the transmitting voltage response level is 2~10dB higher, the impedance bandwidth is about twice higher, and the -3dB bandwidth is about two times higher. Times; the receiving sensitivity is 3~5dB higher. The single crystal vector hydrophone has low motion self-noise, and the sensitivity is 4~6dB higher than the piezoelectric vector hydrophone of the same size.
5.Fixed installation vector hydrophone
Using the center column as the fixed base, the ceramic shearing working mode, the working frequency band is 100-5000Hz, the installation is simple, the performance is stable, and it can replace most vector hydrophones installed on various platforms.
The cone-shaped reflector is used to reflect the circumferentially radiated sound waves of the toroidal transducer to the end surface to work, and relatively stable acoustic radiation of the beam can be realized on the end surface.