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Question:

How to take the most accurate total station instrument height?

How to take the most accurate total station instrument height?

Answer:

Mark down from the natural instrument with the plumb line, the vertical ball tip just reaches the ground, and then take the instrument sign ruler of plumb line end to plumb tip distance.
Out of the total station, in station on the Lishui screeds with ruler alignment, integer partition of water scale, reading level alignment ruler, 2 readings difference is the instrument, reading can be estimated to read 0.1mm, and use the same method to measure prism.
In the end the distance and vertical angle measurement using total station, from the station right away, the erection of leveling with ruler alignment instrument center reading level in the reading on the ruler.

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