The development of Special welder Microcomputer System for Highway Isolation Fence

Introduction is given to the function,hardware construction and software design of special welder microcomputer controlling system for highway isolation fence.The controlling system has many work patterns,such as manual,semiautomatic,and automatic,and can compensate for the effect of voltage fluctuation to welding current.The batch process shows that the controlling system has the characteristis of conveniet operation,reliable property and stable welding quatity.