Ruler combinative/composite water level for dual type observation

Abstract

The invention discloses a ruler combinative / composite water level for dual type observation. The water level is provided with a columned ruler body (1) and a water level (6); a leveling staff (2) and an observation unit (3) capable of sliding up and down are fixed on a same columned surface of the columned ruler body (1); the observation unit (3) comprises an opposite-side altitude signal measurer (4) and an own-side altitude signal measurer (5) which are mutually and fixedly connected; and the collimation axis of the opposite-side altitude signal measurer (4) is parallel to that of the own-side altitude signal measurer (5) and the collimation axis is vertical to the leveling staff (2). Point-to-point direct leveling measurement is really realized; the selected points and arranged points are not limited by terrain and environment; and leveling measurement can be conveniently carried out on complex terrains, such as abrupt slopes, channels, rivers, and mountain areas.

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