# The method of geometric leveling

(57) Abstract:

The invention relates to measurement techniques, in particular for geodetic measurements in excess of construction and Assembly production. The sighting axis leveling register counts on the ruler. Line sequentially set in the area of controlled points. The beginning of the scale line is combined with the reference point of reflectorless rangefinder. The optical path of the finder result in vertical position and measure the distance to the monitored points. The excess between the controlled points is calculated by the formula h= (bi-bi+1)-(ai-ai+1), where h is the excess between the controlled points i, i+1;ibi+1- measured range reflectorless rangefinder; aiandi+1- readings on the ruler. The technical result consists in expanding the range of use of the method and increase productivity. 2 Il.

The invention relates to measurement techniques, in particular for geodetic measurements in excess of construction and Assembly production.

The known method of geometric levelling.with. N 1439403, G 01 C 5/00, 23.11.88 g), namely, that the sighting axis leveling Perelada this technical solution is small measuring range, that limits the scope of its application.

Closest to the claimed method is geometric levelling (A. C. Ants, B. I. Gaidashev. Engineering geodesy. M., Nedra, 1982 , page 364 - 365, Fig. 108 b), namely, that the sighting axis leveling register counts on the ruler and tape on the two horizons.

The disadvantage of this technical solution is the complexity, which limits the range of use and productivity.

The invention consists in that in the method of geometric leveling, namely, that the sighting axis leveling record the reading on the ruler, sequentially installed in the area of controlled points, the beginning of its scale line is combined with the reference point of reflectorless range finder, optical path which leads to a vertical position and measure the distance to the monitored points, the excess between the controlled points is calculated by the formula

h = (bi- bi+1) - (ai- ai+1)

where h is the excess between the controlled points i, i+1;

bibi+1- measured range reflectorless rangefinder;

andi, ai+1- timing p is co-located points and consequently to determine the excess between them. This ensures, first, the expansion of the range of use of the method, and secondly, improving the performance of the work.

The invention is illustrated by drawings, where Fig.1 shows the General scheme of the method of Fig.2 - General layout of the line and reflectorless rangefinder.

For implementing the method uses a level 1 and a device that combines line 2, reflectorless rangefinder 3.

The method of geometric leveling is implemented as follows. In the area of the controlled object (e.g., crane tracks overhead crane) establish a level 1. At a pre-broken and marked on the floor points sequentially install the device, companysee line 2 and reflectorless rangefinder 3 (for example, Disto classik) (see Fig. 1). The beginning of the scale line 2 is combined with the reference point of reflectorless rangefinder 3. The optical path of the finder 3 lead (for example, with lifting screws and cylindrical level) in a vertical position. Level 1 take the reading on the ruler 2 and measure distance 3 distance to controlled points located on crane paths (see Fig.2). The excess between the controlled points calculate Sogni points i, i+1;

bibi+1- measured range reflectorless rangefinder 3;

Thus, it is possible to perform measurement of excess highly placed between the inaccessible points (within the range reflectorless distance up to 100 m). This ensures, first, the expansion of the range of use of the method, and secondly, improving the performance of the work.

The method of geometric leveling, namely, that the sighting axis leveling register counts on the line, sequentially installed in the area of controlled points, characterized in that the top of the scale line is combined with the reference point of reflectorless range finder, optical path which leads to a vertical position and measure the distance to a monitored points, the excess between the controlled points is calculated by the formula

h=(bi-bi+1)-(ai-ai+1)

where h is the excess between the controlled points i, i+1;

bibi+1- measured range reflectorless rangefinder;

andi, ai+1- readings on the ruler.

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