Template exploration - for flame cutting, with symmetrical exploration

摘要

Process for exploration of template for flame e.g. plasma arc cutting machines, of the type in which p.e. cells (I) are operated on a mobile carriage and facing each other on each side of the path to be followed and in which an imbalance signal (II) is generated depending on the distance of (I) from the path. (I) are arranged in a circuit connected between two equal supply conductors of opposite potentials, and the appearance of a weak (II) at a point of zero potential point is used to obtain a value and polarity voltage via an operational amplifier to correct the imbalance.