31 October 1980 Optical Measuring Device For Interior Dimensions Of Automobiles
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Abstract
The developed measuring device is a noncontacting system utilizing a He-Ne laser, which permits rapid measurement of interior dimensions of automobiles, based on the principle of optical triangulation. Laser beam is projected from the head of the device to a point to be measured as a spot and this spot is automatically searched by means of a mirror, a lens and a two-element photodetector to measure the length along the projection axis. The head of the device including optical parts is rotated by a motor and the rotating angle is measured by a rotary encoder. Thus, the measured length and rotating angle are calculated into rectangular coordinate values with a microcomputer, and the coordinate values can be represented on a panel and also punched out on a teletypewriter. The values thus obtained with this device have been successfully utilized for a computer aided design system for automobiles.
© (1980) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Satoshi Sugiyama, Nobuaki Takahashi, "Optical Measuring Device For Interior Dimensions Of Automobiles", Proc. SPIE 0247, Advances in Laser Engineering and Applications, (31 October 1980); doi: 10.1117/12.959399; https://doi.org/10.1117/12.959399
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