Eiji Ogita*, Toshitsugu Ueda, Daisuke Yamazaki

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)


In this paper, we have described a dynamic displacement meter that is capable of simultaneous contactless measurement of the displacement of an object in three dimensions using a single laser beam, by splitting the reflected laser beam. We have confirmed the effectiveness of the meter for measuring the dynamic displacement of a typewriter hammer at impact, for measuring the vibrations of car engines, car bodies, and exhaust pipes, and for measuring the transfer function of robot arms. In the future, it is likely to find application in oscillation/vibration analysis and in distortion/warp and speed measurement for mechanical structures, machines, and high-precision equipment.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsHenri H. Arsenault
Place of PublicationBellingham, WA, USA
Number of pages7
ISBN (Print)0892525916
Publication statusPublished - 1985
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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