Design and construction of a laser microvibration sensor

الملخص EN

Taser is one of the powerful tools in the field of the optical sensors.

In this research a simple system was developed to sense the mechanical micro vibrations of a certain surface.

The laser spot position modulation was adopted to achieve the laser beam modulation.

This system was successfully tested and the audio signal was modulated on the laser beam.

A light dependent resistance (LDR) was used in the receiver as an optical detector and it gave good results.

From the results of this research, one can conclude that laser can successfully be used in micro vibrations measurements and there is a strong correlation between the strength of received signal and the physical contact of the sensor with the vibrated surface.