Abstract
Walking speed of pipe automatic welding bug influences directly the quality of pipe welding. Measurement of walking speed of pipe automatic welding bug is very necessary. Direct measurement of walking speed of pipe automatic welding bug has the certain difficulty. Indirect measurement of walking speed of pipe automatic welding bug is realized by angle transducer installed in pipe automatic welding bug. Measuring precision of walking speed of pipe automatic welding bug is influenced by angle signal sampling frequency , angle resolution of angle transducer, walking speed of pipe automatic welding bug, the resolution of the AD converter and so on. The method of subsection of speed is adapted to measure indirectly walking speed of pipe automatic welding bug . Its effect is well.
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