据美国俄勒冈州尤金市的诺斯勒系统公司经理J.诺斯勒说,自一年前该公司研制成一种激光计数系统以来,美国已有50多家印刷厂安装了这种系统,它能对正在印刷中的报纸计数.一台输出1毫瓦的氦-氖激光器及位置传感探测器能监控印刷机送出的一叠报纸的厚度.每张报纸边沿如出现厚度不连续,则会触发系统软件作一次计数. 诺斯勒已为这种报纸计数系统申请专利,他于 According to J. Northler, manager of Northler Systems in Eugene, Oregon, since the company developed a laser counting system a year ago, more than 50 printers in the United States have installed the system The ability to count the number of newspapers being printed on, and an output of 1 milliwatts of He-Ne laser and position sensing probe to monitor the thickness of a stack of newspapers delivered by the press. Trigger system software to make a count. Northler has applied for this newspaper counting system patent, he