| 摘要 |
<p>An electro-magnetic control system has an air gap-less iron circuit (1) with windings for several electrical inputs (W1, W2, W3, W5) of which one (W1) is for direct current for magnetic permeability control, and with an output (W4) in functional relationship to the input quantity. The permeability is adjusted to its maximum value and the magnetic circuit has blocking magnetic system (W5) fed by an alternating voltage as an extension of the input quantity for control of its electromagnetic resistance. The system may be arranged as a modulator multiplier, inverting member, or magnetic amplifier and is of simple construction.</p> |
