Moire technique and measurement of vibrations.

摘要

The measurement of processes varying on time is becoming necessary in Science and Technology. At present there is a variety of measurement optical techniques. These techniques involve the technical moire that allows the measurement of forms and changes with certain degree of precision. This investigation presents the ideas and preliminary measurements in the introduction of the measurement of vibrating systems, using an automated shadow moire system. The advantages and disadvantages of using this technique are presented, as well as a comparison with the holographic interferometry and the ESPI. The searching of useful and low cost tools is evaluated for the measurement of dynamic processes in different branches of engineering, such as construction, transportation, mechanical industry, etc.