| 摘要 |
<p>PURPOSE:To operate the attitude and position based on a predetermined interval and a signal by alternately switching two light sources disposed at fixed positions spaced apart by a predetermined interval, receiving the light from the light source to detect the two-dimensional angle, and then delivering a signal representative thereof. CONSTITUTION:A light receiving unit 11 comprises a light receiving element, i.e., a photodetector 14 split into four 14 or a PSC 20. The unit 11 includes a current/voltage converter 32 for converting a current corresponding to the quantity of light (the photodetector 14) into a voltage. An operating unit 34 performs operations required for calculation of position and attitude, e.g. differentiation or summing, based on the voltage received from the converter 32 and delivers a data to a main body. A switcher 36 switches the data according to the switching of light sources 10a, 10b. The data is passed through bandpass filter 38 in order to remove noise and then passed through a gain regulator 40, a detecting circuit 42, a low-pass filter 44, and an A/D converter 46a to a central processing unit 46 where the attitude and coordinate position are operated.</p> |
