芝加哥 Magnaflux 公司研制成了一种激光系统,用于检查离开生产线的飞机喷气发动机涡轮压缩机叶片的缺陷。该系统被 Pratt 和 Whitney 公司购买以代替人工检查员。以前当叶片经过时,检查员用目视识别叶片上的缺陷。检验系统包括由加州 Omnichrome 公司制造的三台氦镉激光器,其它元件包括六对扫描反射镜,六只光电信增管和一台微型计算机。 Magnaflux of Chicago has developed a laser system for inspecting the flaw in turbine compressor blades of an aircraft jet leaving the production line. The system was purchased by Pratt and Whitney instead of a human inspector. In the past, when the blade passed by, the inspector visually recognized the defect on the blade. The inspection system consisted of three helium-cadmium lasers from Omnichrome, Calif. Other components included six pairs of scanning mirrors, six optical telecom tubes and a microcomputer.