Automatic Plotting of Equipotential Lines
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概要
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The manual operation of plotting equipotential lines between model electrodes in an electrolytic tank has been made automatic by applying a servomechanism. In the arrangement, the probe, which itself consists of three needles rotatable about the center, is moved in the X and Y directions by two servo-motors arranged correspondingly. The outer two needles of the probe incessantly seek out the tangent of line and follow up the direction automatically. And in this direction the probe is made to move at a preset constant speed. On the other hand, any deviation of the probe from the line is detected by the center needle, and is corrected continually in the normal direction. By these means, any closed or open equipotential line may be automatically traced out. The detailed constructions, circuits and the performance of the arrangement with a few examples of plot are described in this paper.