The welding parameter monitoring and tracking control system of arc sensor was developed with LabVIEW.

A space curve welding seam tracking sys-tem on welding robot with rotating arc sensor is devel-oped.

Considering the non-holonomic constraits of a welding robot system with arc sensor,a robot kinematics model was established.

Signal processing and communication of arc sensor based on DSP;

Design of arc sensor based on rule self-adaptive fuzzy controller;

Development of arc sensor for short circuit transition;

The high speed rotating arc welding sensor driven by motor with air axis is widely used in seam tracking system,the theory of variation detection is introduced at first;the minimization of controller is necessary in putting the technology into products,the work has been done.

Identification of welding torch deviation with rotating arc sensor;

Processing of underwater arc welding signal based on rotating arc sensor

In order to solve the problem of the mechanical arc sensor for seam-tracking,a new type of magnetic-control arc sensor was developed,and its mechanical structure and the correlative circuit diagram were given.

Aimed at some problems of the mechanical arc sensor for seam-tracking,the magnetic-control welding arc technology is applied to seam tracleking,a new type magnetic-control arc sensor and a system structure with two sets of crossed slides are designed.

In order to solve some problems of the sensor for seam-tracking,applied the magnetic-control welding arc technology,developed a new type magnetic-control arc sensor,it s basic principle was analyzed,and mathematic model was built,the main parameters were analyzed,that provided academic foundation for the application of the magnetic-control arc sensor.