@article{oai:kanagawa-u.repo.nii.ac.jp:00007288,
 author = {Amano, Chikara and 天野, 力 and Sugitani, Yoshinori and 杉谷, 嘉則 and Takei, Takaya and 武井, 尊也 and Fujiwara, Shizuo and 藤原, 鎮男},
 journal = {年報},
 month = {Mar},
 note = {Measurement and analysis of fluctuations of structural objects are useful for monitoring the condition of these structures. In this paper, we propose a laser beam technique for studying these fluctuations, and report some results of our investigations, including an observation of forced vibration of a refrigerator, rotational frequency of an electric motor, and the appearance of a fluctuation in rotational speed due to fatigue. This technique has also been applied to real structural objects, a resonance of a automobile due to rotation of the engine, and intrinsic vibrations of buildings. Standard techniques used in fluctuation analysis are compared in a detection of an abnormal state of an electric motor. Data processing techniques of higher-orders are tested. Fluctuation analysis should be an important objective of analytical chemistry. The results obtained with this laser beam technique should form a useful collection of data regarding fluctuation analysis of various objects.},
 pages = {103--113},
 title = {Measurement of the Fluctuation of Structures by Reflection of Laser Beam. I},
 volume = {'93.'94},
 year = {1995}
}