1 September 2006 Optical laser level
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Optical Engineering, 45(9), 093601 (2006). doi:10.1117/1.2349538
Abstract
An instrument for measuring the level of a liquid surface is described. The device is compact, requires no special handling, is noncontact, and can measure variations in level of the order of a micrometer, although this value can be suitably modified by changing the setup parameters. The instrument was developed as a machine flatness profilometer using the liquid level as a reference surface. Two applications of the instrument as a machine profilometer are presented, the first in order to measure the straightness of the displacement of the spindle of a polishing machine and the second in order to find the flatness error of a coordinate-measuring machine of large dimensions.
Alberto Jaramillo-Nunez, Maribel Lucero Alvarez, "Optical laser level," Optical Engineering 45(9), 093601 (1 September 2006). https://doi.org/10.1117/1.2349538
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