Study on Accuracy Measure of Trigonometric Leveling

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Abstract:

How to reduce the errors of the total station in vertical angle measurement is a main problem for improving the accuracy of trigonometric leveling. The leveling method combining the total station with a tracking bar is becoming increasingly more popular, and also the limitations of the traditional trigonometric leveling method have been shown. After a long period of exploration, a new method is proposed for trigonometric leveling. The results show that the error sources of trigonometric leveling are reduced by the method combining with the total station on any spot, and also instrument height and prism height are unnecessarily measured in each determination, so that the field workload and the error sources for improving accuracy are reduced, and then the accuracy of trigonometric leveling is further improved and the speed of implementing the leveling becomes faster. This height determination method is with certain applicability and reference value in the practical work.

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373-377

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June 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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