| 摘要 |
A method of detecting a position comprising a step for generating two sinusoidal wave signals having phases that are spacially different by 90 DEG , corresponding to the movement of a moving body; a step which detects voltages Va, Vb of the two sinusoidal wave signals to calculate a value alpha which makes the value V = Va.cos alpha - Vb.sin alpha zero; and a step which detects the amount of movement of the moving body by using the above calculated value alpha as data on positions of interpolated division in a cycle of the sinusoidal wave; as well as an apparatus for detecting the position, which is used for putting said method into practice. According to the method and apparatus for detecting position, the moving position of the moving body can be detected with high resolution. |
