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The TDH-93 hydrophone utilizes IEPE technology and can function under a constant current output of either 4 mA or 10 mA. It is equipped with a cylindrical piezoelectric ceramic with a sensitivity of -208 dB. By adjusting the amplification factor of the preamplifier, gains of 10 dB, 20 dB, 30 dB can be achieved. It offers a horizontal omnidirectional response within the frequency range of 2 Hz to 84 kHz. contactus
Optionally, threads can be chosen for fixing the hydrophone on pipes.
Application Scenarios
(1) Passive acoustic monitoring;
(2) Measurement of target radiated noise;
(3) Connection to the 4 - 20 mA current loop of the industrial control system.
Technical Specifications
(1) Sensitivity @1 kHz: -178 dB V/μPa ± 2 dB
(2) Output Current: Constant current of 4 mA (or 10 mA)
(3) Operating Frequency Band: 2 Hz - 84 kHz
(4) Amplification Factor: 10 dB, 20 dB, 30 dB
(5) Thread Specifications (Optional): M36x2 with a thread length of 25 mm, M36x2 with a thread length of 14 mm
(6) Weight: 420 g
(7) Materials: 316 steel, acoustic materials
(8) Equipment Power Supply: 5 - 24 V
(9) Driving Cable Length: 1000 m (differential)
(10) Dimensions: Φ28 x 58 mm
(11) Operating Temperature: -10 °C - +60 °C
(12) Storage Temperature: -20 °C - +60 °C
Sensitivity
Directivity
