Surveying instrument
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United States of America Patent
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Jul 12, 2022
Grant Date -
Oct 15, 2020
app pub date -
Apr 9, 2020
filing date -
Apr 15, 2019
priority date (Note) -
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Abstract
There is provided a surveying instrument including a tripod which is installed on an installation surface and a surveying instrument main body which is provided on the tripod and laterally rotatable around a longitudinal axis, wherein the tripod includes a reference leg has a known relationship between a lower end of the reference leg and a machine reference point which is a machine center of the surveying instrument main body, and two auxiliary legs, the reference leg is installed in such a manner that a lower end of the reference leg coincides with a reference point, wherein the surveying instrument main body calculates a position of the machine reference point with respect to the reference point based on the positional relationship between the lower end of the reference leg and the machine reference point.
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