Abstract
A method for accurately measuring a sectional profile of a cylinder is proposed in which a sinusoidally vibrating sinusoidal grating is used to generate a sinusoidally vibrating sinusoidal intensity distribution. A light coming from the top point of the cylinder surface is extracted with an optical system to make an image of this point. A sectional profile of the cylinder is measured by detecting a phase of a time-varying signal contained in the image intensity at a position where the amplitude of the signal is maximum. Detection of the amplitude and the phase is carried out easily and exactly.
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Li, J., Sasaki, O. & Suzuki, T. Measurement of Sectional Profile of a Cylinder using a Sinusoidally Vibrating Light with Sinusoidal Intensity. OPT REV 9, 159–162 (2002). https://doi.org/10.1007/s10043-002-0159-0
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DOI: https://doi.org/10.1007/s10043-002-0159-0