Abstract
Many techniques for measuring vibration in both the rotating machine and the structure of the machine itself. Generally, these measurement techniques utilize conventional vibration sensors such as eddy-current, swing coil velocity and piezoelectric transducer. Current research provided a free vibration measurement analysis using a micro electro mechanical system (MEMS) sensor type on a small-scale wind turbine blade. A wind turbine blade with a tip mounted on two types of vibration sensors was hit at 5 different positions. The measurement results were changed from the time domain to the frequency domain for analysis. The experiment produced a vibration response with a difference in frequency value of 6% against the comparative frequency. These results indicated that the MEMS accelerometer type sensor can be applied to the measurement of free vibrations in the wind turbine blade.
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