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Products Distortion Measurements at High Signal Amplitudes Some hydrophones produce low distortion at low signal amplitudes, but greater distortion when exposed to greater signal amplitudes. GeoSpectrum’s high-speed hydrophone calibrator can be equipped to measure distortion, sensitivity and capacitance as a function of signal amplitude up to 100 mbar rms. The measurements can also be done as a function of depth and temperature.
Typical graph of the amplitude of the first harmonic re the fundamental
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