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文章介绍激光扫描定位仪的原理以及其信号处理方法。该仪器利用压电陶瓷扫描器PZTA产生激光扫描线，二象限光电管接收激光，光电流引入单片机处理，再数字显示偏差值，定位长度大于3m，灵敏度优于25μm，在线性范围为±1．5mm，非线性误差0．6％。
The article introduces the principle of laser scanning locator and its signal processing method. The instrument uses a piezoelectric ceramic scanner PZTA to generate laser scanning lines. The two-quadrant phototube receives the laser light. The photocurrent is introduced into the single-chip microcomputer for processing. The digital deviation value is displayed. The positioning length is greater than 3m and the sensitivity is better than 25μm with a linear range of ± 1. 5mm, non-linear error of 0.6%.