The main task was investigation and precision improvement for a positioning drive, installed in a test rig for testing and calibration of the geodetic instruments at Vilnius Gediminas Technical University, Institute of Geodesy. Replacement of a stepper motor and a microstepping controller design increased positioning accuracy to 0.1''. Vibrations and noise of the test rig were significantly decreased using an optimized control algorithm, where resonating step frequencies were bypassed. The time of scale rotation between measurements (every 30°) achieved less than 1.5 min. Methods of the further precision improvement were selected, and this research is in progress now. Article in Lithuanian. Mechatroninės kampų matavimo sistemos tyrimas ir ...
The paper introduces testing procedures of several different geodetic centring devices performed mos...
The aim of the research was to determine the mechanical stabilityof angle measurement comparator’s s...
The precision raster-forming systems creation and development must be based on research in the speci...
The most geodetic instruments are based on measurement of angular values. Such instruments as digita...
The aim of the conducted research was to determine the mechanical stability of angle measurement com...
Most geodetic instruments are based on measurement of angular values. Such instruments as digital th...
The test bench for testing and calibrating the measuring geodetic instruments for flat angle measure...
The article analyzes the methods and devices for angle measurement. An accurate analysis of devices ...
The aim of the conducted research was to determine the mechanical stability of angle measurement com...
The aim of the research was to determine the mechanical stabilityof angle measurement comparator’s s...
In our days precise geodetic instruments are very widely used in geodesy, building structures, surve...
Rotary encoders are the main devices in industrial angle measurement. Accuracy is very important and...
Testing and calibration of precise angle measurement instruments, widely used in various fields of s...
This thesis investigates the requirements in their totality of precision positioning instruments wit...
The article describes the dynamics researches of mechanical system of angle comparator. The goal of ...
The paper introduces testing procedures of several different geodetic centring devices performed mos...
The aim of the research was to determine the mechanical stabilityof angle measurement comparator’s s...
The precision raster-forming systems creation and development must be based on research in the speci...
The most geodetic instruments are based on measurement of angular values. Such instruments as digita...
The aim of the conducted research was to determine the mechanical stability of angle measurement com...
Most geodetic instruments are based on measurement of angular values. Such instruments as digital th...
The test bench for testing and calibrating the measuring geodetic instruments for flat angle measure...
The article analyzes the methods and devices for angle measurement. An accurate analysis of devices ...
The aim of the conducted research was to determine the mechanical stability of angle measurement com...
The aim of the research was to determine the mechanical stabilityof angle measurement comparator’s s...
In our days precise geodetic instruments are very widely used in geodesy, building structures, surve...
Rotary encoders are the main devices in industrial angle measurement. Accuracy is very important and...
Testing and calibration of precise angle measurement instruments, widely used in various fields of s...
This thesis investigates the requirements in their totality of precision positioning instruments wit...
The article describes the dynamics researches of mechanical system of angle comparator. The goal of ...
The paper introduces testing procedures of several different geodetic centring devices performed mos...
The aim of the research was to determine the mechanical stabilityof angle measurement comparator’s s...
The precision raster-forming systems creation and development must be based on research in the speci...