Audio visual instructional system

A welding instructional system for simulating operations of a welding torch on a welding site, comprising:

• a welding torch simulator;
• display means for displaying images of a welding site;
• location detection means responsive to the display means and the relative location of the torch and the display means for producing a location signal indicative of the relative location;
• addressable memory means for storing information for generating, on said display means, different images of sequential stages of the welding site undergoing welding operation by the torch in dependence on said location signal;
• control means responsive to said location signal and the image currently displayed, for addressing said memory means to address the information used to generate images on said display means representative of changes between the welding site and said torch;
• and
• valve simulation means for simulating oxygen and acetylene valves and for providing signals representative of the valve positions, and wherein said control means addresses said memory means to generate images on the display means to simulate a torch flame which would result from said valve positions.

A welding instructional system for simulating operations of a welding torch on a welding site, comprising:

• a welding torch simulator;
• a display means for displaying images of a welding site;
• location detection means responsive to the display means and the relative location of the torch and the display means for producing a location signal indicative of the relative location;
• addressable memory means for storing information for generating, on said display means, different images of sequential stages of the welding site undergoing welding operation by the torch in dependence on said location signal;
• and
• control means, responsive, to said location signal and the image currently displayed, for addressing said memory means to address the information used to generate images on said display means representative of changes between the welding site and said torch;
• said location detection means detecting the distance of the welding torch from the display means, angle of the welding torch relative to the display means and position of the torch projected onto the display means, and wherein a welding rod is provided with means for sensing the position of the welding rod on the display means, and wherein the control means monitors the parameters of torch distance, torch position, rod position, torch angle, torch circling rate, torch circling width and torch movement across the welding site, and addresses the memory means to address the information used for generating images on the display means representative of changes on said workpiece by said tool operation thereon and in responses to said parameters.

A welding instructional system for simulating operations of a welding torch on a welding site, comprising:

• a welding torch simulator;
• display means for displaying images of a welding site;
• location detection means responsive to the display means and the relative location of the torch and the display means for producing a location signal indicative of the relative location;
• addressable memory means for storing information for generating, on said display means, different images of sequential stages of the welding site undergoing welding operation by the torch in dependence on said location signal;
• and
• control means, responsive to said location signal and the image currently displayed, for addressing said memory means to address information used to generate images on said display means representative of changes between the welding site and said torch;
• said display means being refreshed periodically in a raster scan manner, herein the location detection means comprises a fiber optic cable mounted in said torch for detecting light from said display means, and including counting means for detecting, during a raster scan, the period of time between the beginning of the raster scan and when a fiber optic cable detects light, said period indicating the position of the torch.