| 摘要 |
<p>The partial streams (9, 10) emitted by the cells (7, 8) influence the cells (11, 12) separately. The modulator (13) includes on its periphery two concentric rows (15, 16) of alternatively opaque and transparent strips (18, 17, 19, 20). The partial position-signals emitted by the cells (11, 12) are weighted and subtracted from one another in the circuit (22), so that the position-signal emitted on the line (25) is a corrected sinusoidal signal including a 3rd order harmonic weighted so that the signal approximates the ideal symmetric, triangular shape. <IMAGE></p> |
