Study on the Judgement of Two Lines Relative Position;

Analysis of structure design and control of a linear switched reluctance motor[LSRM];

Drawing and Clipping of Lines and Curves;

A kind of synthesizing method for accurate trace guiding mechanism of straight lines and circles;

A universal algorithm for tracing straight line;

Designs for presentation of straight line and line segment;

A general synthesis model of mixed-point straight-line linkage in the general condition was established,and some key parameters in the equations were solved.

Based on the synthesis theory concerning the mixed point straight-line four-bar linkage in the special condition, a research method with the circle center and circle point as parameters is proposed.

This paper introduces the method of route survey using RTK GPS and discusses the matter of precision of the beeline.

Turned the distance between the space point and the beeline and the distance between the two beelines which are not in the same plane into the maximum of the distance between the point and the plane pencil.

This beeline displacement sensor is based on the principle of electromagnetism influ- ence,using film inductance coil twisted on the cylinder to get a high frequency electromagnetic field,and it has two coils with the same parameter.

A Fast Evaluation Method for Flatness and Straightness Tolerance by Means of Incremental Algorithm;

Research on Regular Polygon Continuous Forming Principle and Mathematical Model Based on Straightness Constraint Condition;

Uncertainty calculation of spatial straightness in three-dimensional measurement;