改良された等電位線自動追跡装置

抄録

Servomechanism is applied to improve the automatized operation of equipotential line plotter furnished with an electrolytic tank. The working principle is that the speed of the probe in x-direction on xy-plane of plot is made to become inversely proportional to the deviation between reference and probe potentials that causes the probe to move in y-direction. The speed of the probe in x-direction is thus slowed down when steep curves are plotted with no fear of the y-control servomotor being saturated. The above device enabled correct plotting to be made with the speed much faster than ever reported.
The gain of pre-amplifier is controlled by the potential gradient detected by a sub-probe, by which means the operation of y-motor control system becomes optimal and a high accuracy comparable to that of maps calculated by conformal representation is attained.
A relay system operated by limit switches effects automatic plotting of successive equipotential lines to be made within a desired area.
Theoretical analysis, detail of circuits, comparison of results with theoretical computation and examples of application are given.