phase-lock

The magnetooptic self-nulled ellipsometer,with ac Farady magnetooptic modulating and phase locking to detect nulled point,has the high abilities of prevent interference and angular recognize.

磁锁相椭偏仪采用交流法拉第磁及相敏检波来检测消点,具有抗干扰能强,角辨能高等优点。