Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2017 - September 06, 2017
Measuring or calculating structural intensity (SI) affords us to understand the propagation paths of vibration and the amount of the transmitted power. In this paper, a new SI measurement system is developed. This system simultaneously uses many of MEMS sensors to save time. The requirement for this development is firstly summarized. An example of the system developed is presented. Secondly the characteristics of the MEMS accelerometers were tested from the view points with mismatch among the MEMS sensors each other. Also the frequency response characteristics of the MEMS sensors were tested by comparison with the results of the ordinary accelerometers. As a results, the accuracy of the MEMS sensors are not so high but are applicable practical uses by correcting signals. Finally it is demonstrated that the SI measurements on the beam and the plate are correct by comparison with the results by the ordinary SI measurement methods.
