Calibration method of theodolite in water survey
A theodolite and vertical axis technology is applied in the field of adjustment in the three-dimensional measurement of the theodolite on water, which can solve the problems of unable to perform a single measurement, unable to adjust the theodolite on the water, unable to accurately measure three-dimensionally, etc., to save the cost of water measurement, The effect of reducing docking and transportation costs and improving measurement efficiency
Inactive Publication Date: 2012-02-01
SHANGHAI SHIPYARD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to overcome: in the past, the theodolite could not be adjusted on the water, the three-dimensional measurement on the water could not be accurately carried out and the situation of one-time measurement could not be achieved, and a method for adjusting the theodolite during the water measurement was provided. 3D measurements on water provide a solution
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[0028] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.
[0029] Such as Figure 1 to Figure 3 Shown, the adjustment method of the theodolite when surveying on water in the embodiment of the present invention, its steps include:
[0030] S 1 , First, according to the required measurement range, establish a coordinate system on a plane parallel to the base plane. A plane coordinate system can be formed by drawing two vertical and horizontal intersecting straight lines on the ship platform or horizontal deck, and the intersection point of the two straight lines O as the coordinate origin 10;
[0031] S 2 ,Such as Figure 2 to Figure 3 As shown, take the coordinate origin 10 as the starting point and away from the origin to measure two pairs of equal line segments with lengths b and a in the vertical direction of the coordinate vertical axis 1...
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The invention discloses a method for adjusting a theodolite when surveying on water, which comprises: first establishing a coordinate system; taking the origin as a midpoint on the horizontal and vertical coordinate axes to measure two pairs of respectively equal line segments to form the horizontal axis and the vertical axis, The end points of the line segment are the four far points on the axis; put the theodolite on the coordinate origin to close its automatic leveling; use the origin as the base point to adjust the theodolite on the vertical axis until the measuring axis is on the vertical axis After the distances of the two far points are equal, do the inversion calibration; rotate the theodolite to the horizontal axis, and adjust the far point on the vertical axis several times until the distances from the center of the measurement axis to the two far points on the axis are completely equal. Do the inverted image calibration of the horizontal axis until it is qualified; repeat the calibration until the distances from the measurement axis to the four far points are completely equal. The invention provides a method for adjusting the theodolite during water measurement, which solves the need of the water three-dimensional measurement of ships and greatly improves the accuracy of the water three-dimensional measurement; the accuracy can reach ±3mm / 100m.
Description
technical field [0001] The invention relates to a method for measuring on water, in particular to a method for adjusting the three-dimensional measurement of a theodolite on water. Background technique [0002] The existing three-dimensional measurement on water generally uses simple tools to measure multiple base surfaces, and it is often impossible to obtain the required data in one measurement. At the same time, the error can reach tens of millimeters, and the accuracy of the measured data is very poor. . Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome: in the past, the theodolite could not be adjusted on the water, the three-dimensional measurement on the water could not be accurately carried out and the situation of one-time measurement could not be achieved, and a method for adjusting the theodolite during the water measurement was provided. Three-dimensional measurement on water provides a solution. [...
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IPC IPC(8): G01C25/00G01B11/00
Inventor 张洪春
Owner SHANGHAI SHIPYARD