| 摘要 |
A converter of displacement includes magnetic modulation head placed near the scale to which magnetic marks with alternating polarity are applied, former of sinusoidal excitation current to which excitation windings of magnetic modulation head are connected, first-sixth signal windings, resolver of direction of motion in set of the first and the second triggers, the first and second differentiating circuits, the first and second logical elements AND, reversible counter, the first-fourth phase detectors, first and second resonance amplifiers of voltage of second harmonics, phase change by &pgr;/2 circuit, adder and circuit for phase pickup. |
