SEARCH CONTROL SYSTEM OF MULTIDEGREE-OF-FREEDOM MECHANISM

摘要

PURPOSE:To calculate true max. output, by spatially moving the leading end of an article to be adjusted by a multidegree-of-freedom mechanism. CONSTITUTION:In order to obtain predetermined beam output in a laser diode 16, it is necessary to positionally match the optical axis of a laser diode chip 1 with that of an optical fiber 4. Then, a support 5 is grasped to be moved to X-, Y- and theta-directions to be plastically deformed to perform desired positioning. In order to automate this work, the support 5 is grasped by a multidegree-of-freedom mechanism 6 (3-degree-of-freedom fine adjustment mechanism) and the mechanism 6 is controlled on the basis of the output of the diode 16 to deform the support 5. The output of the diode 16 is detected by a detector 14 to be normalized to be sent to a control apparatus 15. This apparatus 15 calculates the drive quantities in X-, Y- and theta-directions from the normalized displacement quantity and the displacement quantity of the mechanism 6 and applies the corresponding voltages to actuators 11-13. The mechanism 6 displaces in proportion to the voltages applied to the actuators 11-13 to perform the matching of optical axes.