Paired type observing ruler and gauge combined composite leveling instrument

Abstract

The invention discloses a paired type observing ruler and gauge combined composite leveling instrument; the composite leveling instrument is provided with a column-shaped ruler body (1) and a level (6), wherein a leveling staff (2) and an observing unit (3) are fixed on the same column surface of the column-shaped ruler body (1); the leveling staff (2) is parallel to the axis of the column-shaped ruler body (1); the observing unit (3) can slide up and down; the observing unit (3) is provided with an opposite side height signal detector (4) and a home height signal detector (5), which are fixedly connected with each other; and a collimation axis of the opposite side height signal detector (4) is vertical to the axis of the column-shaped ruler body (1). Point-to-point direct leveling is truly realized; point selection and point arrangement are not limited by terrain environments; and leveling can be conveniently carried out in complicated geographic conditions, such as abrupt slopes, ditches, rivers, mountainous areas and so on.

Description

technical field [0001] The invention belongs to the technical field of surveying, and in particular relates to a dual-type observation ruler-meter-integrated composite level that can effectively improve the working efficiency and reliability of leveling surveys and is not restricted by the terrain environment. Background technique [0002] At present, the known leveling device is made up of a level and two leveling rods. When measuring, first place the two leveling rods on the ground at points A and B respectively, and then set the leveling instrument at the middle position of the two points A and B. In order to ensure the measurement accuracy, the horizontal distance between the leveling device and the two leveling rods is generally required. Equal or approximately equal. Use the horizontal line of sight of the leveling instrument to read the elevation values ​​of the two leveling rods respectively. The difference between the measured elevation values ​​is the level differ...

AI Technical Summary

Problems solved by technology

[0003] (1) Low measurement efficiency and reliability

[0004] Realizing the reasonable configuration of the position between the leveling instrument and the leveling rod in a complex terrain environment often consumes a lot of energy and time of the surveyors, which affects the measurement efficiency; using a leveling instrument for measurement, it is impossible to carry out multi-observation system for the measured height difference data In order to improve the reliability of leveling, the round-trip measurement and verification mode is often used, which not only consumes a lot of energy and time of the surveyors, affects the measurement efficiency, but also its reliability is difficult to guarantee due to human factors;

[0005] (2) The measurement is limited by the terrain environment

[0006] When encountering complex terrain environments such as steep slopes, potholes, ponds, ditches, ravines, rivers, mountains, etc., it is often impossible to set the level at the middle of the two leveling rods, resulting in the impossibility of leveling measurement

Images