位相シフト走査モアレ法による実時間等高線・等変位線表示装置の開発

概要

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A scanning moire method was previously proposed to measure shapes in real-time. In this method, contour lines of an object are obtained in a moment as a moire pattern with sampling a grating image at every several scanning line. The disadvantage is that the image has jagged noise. In this paper, therefore, a new method to obtain a smooth scanning moire without the noise is proposed. In this method, the image of contour lines is obtained by sampling process synchronized with the phase of a projected grating that is shifted continuously. It is called the phase shifting scanning moire method. The principle, applications to shape and displacement measurements for actual objects and a real-time display system developped using this method are shown.
公益社団法人精密工学会の論文
2000-08-05