Interchangeable Parameter Determination Method for Composite Level

Abstract

The invention discloses a parametric measurement method for a compound water gage. The parametric measurement method comprises the following steps: firstly installing a plane mirror parallel to a scale surface near a scale of the compound water gage; selecting two ground points such as x and z on flat ground, and placing a compound water gage A and a compound water gage B respectively; using collimation axis of a respectively opposite height finder to collimate the scale through a mirror on the opposite compound water gage, observing and reading the scale data of the scale; using the collimation axis of the respectively opposite height finder to collimate the scale on the opposite compound water gage, observing and reading the scale data of the opposite scale; then interchanging the compound water gage A and the compound water gage B on the ground points x and z, and similarly observing and reading the scale data of the scale and the scale data of the opposite scale; and finally calculating the i angle of the compound water gage and the height H of the height finder through the measured data.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to a composite level gauge interchangeable parameter measurement method which improves measurement efficiency. Background technique [0002] At present, there are two types of equipment used in leveling: traditional level and composite level. [0003] The characteristic of the traditional level is that the ruler and instrument are separated, and one level and two leveling rods are used together. When measuring, first place the two leveling rods on the ground at points A and B respectively, then set the level at the middle position of the two points A and B, and use the horizontal line of sight of the leveling instrument telescope to read the two points respectively. The elevation value of the leveling rod, and the difference between the measured elevation values ​​is the level difference between the two points A and B on the ground. The deficiencies of the traditio...

AI Technical Summary

Problems solved by technology

The shortcomings of the traditional level are: (1) low measurement efficiency and reliability

Realizing the reasonable allocation of the position between the three points of 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

(2) The measurement is limited by the terrain environment

[0004] In order to cooperate with the use of compound levels, the Chinese invention patent No. 201310049994.1 "leveling measurement method suitable for compound levels" discloses how to measure and correct the remaining i-angle of the compound level, how to correct and eliminate the influence of the remaining i-angle on the measured value However, this method has the following deficiencies: (1) If you directly use the pointer as a mark and measure the height of your own side through a ruler, on the one hand, there is an error because it is difficult to accurately determine the collimating axis position of the other side's altimeter (telescope) , on the other hand, it is also affected by the zero point difference of the local scale; (2) If a vertical electronic distance measuring device such as a macro camera, laser or infrared rangefinder, or an absolute linear grating is used to obtain the height of the local side, not only the cost is high, but also the There is an installation matching error with the collimation axis position of the telescope, and there is also the influence of the zero point difference of the local scale

However, in the application practice of the composite level, it is found that the instrument parameter determination method of the above-mentioned patent application requires two exchange measurements to complete the determination, which is time-consuming and laborious, and the determination efficiency is low.

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