Langevin and Mass Loaded Elements

Langevin and Mass Loaded Elements

SensorTech manufactures langevin and mass loaded elements for low frequency sonar transducer and other applications. These transducers have clean response characteristics and are offered in wide range of frequencies, sizes and configurations. SensorTech will also be happy to integrate them into transducer housing and calibrate the transducers if necessary. SensorTech can also customize the elements to suit your requirements for beam angle, frequency and other requirements. Please contact our technical support for further details or to discuss your specific needs.

Langevin   Elements

Mass Loaded Elements
 
Resonance Frequency    (Fr kHz) 10 18 25 40 40 65 75 28 35 50 55
Antiresonance
Frequency (FakHz)		 11.8 19.0 27.2 44.1 42.8 73.0 83.01 30.2 38.3 54.3 57
Impedance at (Fr Ohms) 40 400 45 100 40 100 125 35 85 80 65
keff 0.53 0.32 0.39 0.42 0.36 0.46 0.43 0.37 0.41 0.39 0.26
Capacitance (pF) 18,000 4,000 2,600 1,000 4,200 450 550 1,500 1,200 3,700 7,500
Dissipation Factor 0.003 0.009 0.003 0.003 0.006 0.002 0.003 0.002 0.003 0.007 0.006
Beam Angle (degrees) 165 70 85 85 60 90 60 65 50 35 40
Diameter (mm) 32.0 38.1 31.0 19.0 38.1 10.0 10.5 50 50 50 40
Length (mm) 150 90 75 43 58 25 23 80 67 22 38
Radiating Face (mm) 55x55 square 75 mm dia 42.5 mm dia 26 mm dia 38.1 mm dia 15 mm dia 20.5 mm dia 50 50 50 40