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Title: A Laboratory Test To Measure Theodolite Operator Bias
Author: K. . Lund
Source: 1976 Measurement Science Conference
Year Published: 1976
Abstract: This paper describes the methods and results of a study which was conducted to determine if significant individual biases exist in the angular measurements of theodolite operators performing astronomic azimuth determinations. A laboratory test was set up using two different types of theodolites to measure the angle between a simulated star and a mirror. Five different operators made several series of measurements with each of the instruments. A limited statistical analysis of the test results yielded several important conclusions about instrument and operator related phenomena. The study also contains observations related to operator vision and experience and included a written examination to determine individual techniques and preferences in observing methods.

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