1 July 1997 Method for measurement of the angles of polygons
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Abstract
A simple technique is devised to measure the angles of a pentagon and a hexagon without using expensive spectrometers, autocollimators, and angle gauges. A general technique for measuring the angles of polygons with sides ranging from 5 to 12 is proposed. The technique can be used for carrying out measurements with an autocollimator, when a suitable angle-gauge combination is not available. The method can also be used for both glass and hardened steel polygons with moderate polish.
S. Madhusudana Rao, "Method for measurement of the angles of polygons," Optical Engineering 36(7), (1 July 1997). https://doi.org/10.1117/1.601388
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