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Accelerometer-based Acoustic Vector Sensor

Key Features
3D (or 2D) high-sensitivity accelerometers + phase-reference hydrophone

First-of-its-kind commercial single crystal acoustic vector sensors and its performance characteristics

Description
Design and Performance Specifications
Size
(w/o pre-amp)
Ø65 mm spherical for 3D design
Operating
Frequency
100 Hz to 3 kHz
Sensitivity
(w/o pre-amp)
Hydrophone:
Accelerometer:
-194 dB re 1V/µPa
120 mV/g (per x-, y- or z-accelerometer)
Beam Pattern Nice cosine beam pattern with null depth of > 20 dB per accelerometer
Bouyancy Neutral (to within 5%)
Noise Level Close to SS0




Noise Level near Sea State Zero Beam Pattern, showing more than -20dB Null Depth


Drawing for 2D Acoustic Vector Sensor