Laser measurement and error compensation for positioning accuracy of revolving stage on hybrid NC machine tools;

Theoretical Analysis on Two Evaluating Methods for Machine Tool Positioning Accuracy;

Investigation of Positioning Accuracy of CNC Machine Tools;

Quasi-GPS ultrasonic ranging system and its location precision analysis;

Simulation analysis of location precision unrder GPS signal repeater jamming;

Based on the linear relation between the distance and the time label,a flaw location precision about 0.

Improved measurement methods for positioning precision of USBL;

Effects of crown cover and hill country on RTD GPS positioning precision and corresponding reducing countermeasures;

Back gauge is one important mechanism which influences on positioning precision of mould-cutting machine.

Simulation analysis for hyperbola locating accuracy;

This paper introduces the cnstruction and principle of atlto -- welder for temperature -sensing cylinder, it analyzes with the emphasis on how to obtain higher locating accuracy of work - piece and even slow feeding rate of welding wire to ensure the welding quality by using the simple structure.

The lower locating accuracy is one of the key problems that always affect its application.