Distributed fiber optic acoustic sensing system tests different vibrations with PZT and restores the signals.
Distributed fiber optic acoustic sensing system tests different vibrations with PZT and restores the signals., Video of a test of the effect of a DAS-reduced signal using a PZT to generate vibrations of different frequencies for excitation of an optical fiber.
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Subtitles in the video
We Reduce PZT Fiber Vibration Signals with DAS Integrated Module
Module
Module to 1 km of fiber
Fiber optic tail connection PZT fiber optic vibrator
The signal to the vibrator is now a sine wave
200 Hz
The range is 7 volts
This is the demodulated signal from the software
The time domain is sine wave
Frequency of 200 Hz
Now raise the frequency to 500 Hz
500 Hz sine wave
The time domain is sine wave
Frequency 500 Hz
Now raise the frequency to 1,000 hertz
1000 Hz, sine wave
The time domain is sine wave
The frequency is 1,000 hertz
The frequency is now raised to 2,000 Hz
The range is reduced to 4 volts
The time domain is sine wave
Frequency 2000 Hz
Now raise the frequency to 3,000 hertz
The range is down to 2 volts
The time domain is sine wave
Frequency: 3,000 hertz
Now raise the frequency to 4000 Hz
The time domain is sine wave
Frequency: 4000 Hz
