Geodetski list, Vol. 46 (69) No. 3, 1992.
Original scientific paper
Research on the Weights of Horizontal Angle Measurements Made by Modern Electronic Theodolites E2 and T2000S Proposing a Modification of Measurement Methods
Asim Bilajbegović
; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Željko Bačić
; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Valent Stepan
; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Abstract
Based on measurements from a firm concrete pillar made by the gyrus method, with an electronic theodolite Kern E2 and Wild T2000S, in several microtriangulation networks, the function of the best approximation for standard deviation curve for direction has been investigated. The research shows that this is a "power" function with a form Y = a·X^b. Besides, we have examined the accuracy and the weights of the measured directions as functions of a direction number per one stay, and finally got a common formula for a weight p = √((n^3)/s), (n – number of gyruses, s – number of directions). Considering this newly proposed expression for the weight, a proposition for modification of basic methods for measuring horizontal directions and angles respectively has been elaborated.
Keywords
Hrčak ID:
292634
URI
Publication date:
30.9.1992.
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