An automated method for measuring load coaxiality of universal testing machine was presented in two aspects: basic hypothesis, math modeling for calculating and processing.

The inspection method of error of the coaxality;

A New Way of Coaxality Inspection for 3D Electric Trigger Probe;

A Coaxality On-line Inspecting Instrument of the Inner and Outer Diameters of Cable;

Quick test of coaxiality error of small-hole parts between processes;

The influence of "non-standard accuracy" on coaxiality of turnover boring on NC horizontal boring machine;

A discussion of measurement errors of coaxiality of long-distance bores;

Radial run-out tolerance and axiality tolerance that often used in tolerance of form and position are positioning tolerance.

Belt conveyor main axle happens tired breaking,main reason is axiality that havenzt reach design require,need adjust.

Based on the analyses of positioning relationship among bored holes inbox frame parts,a conversion formula is developed while axiality deviation calculationtakes the center axis of a reference hole and the common axis as the baseline respectively.

Measures for improving the concentricity of the bearing s minor hole at the two ends;

On the principles of intelligent concentricity measuring instrument and the determination of its precision;

Computer-aided Measurement for the Concentricity of Turbogerevator Rotor;

The automatic detecting of the coaxial degree;

The horizontal coaxial degree has error in use,incited by year coupling,which leads to much more vibration,damage machinery and bearing lower service life of facilities as it turns.

When checking coaxial degree by 3D coordinate measuring machine, because of unsuitable measuring methods, a big measuring deviation appeared.