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    • 1. 发明授权
    • Method of, and device for effecting contact-free measurement by optical
scanning
    • 用于通过光学扫描实现无接触测量的方法和装置
    • US4097159A
    • 1978-06-27
    • US712179
    • 1976-08-06
    • Per Strandberg
    • Per Strandberg
    • G01B11/02G01B11/04
    • G01B11/02
    • To measure the cross-section of an object in a contact-free manner (that is to say without contacting the object) use is made of an optical sensor system and means for causing relative movement of the sensor system and the object being measured, the sensor system comprising at least two emitters which emit respective scanning rays at an angle to one another and directed to respective receivers which supply signals to an evaluation unit upon interruption of each ray by the object and subsequent cessation of said interruption; at least two of said co-operating emitter-receiver pairs are so arranged that their scanning rays (or projections thereof on a common plane parallel to the scanning rays) cross one another and extend at angles to the direction of relative movement.
    • 为了以无接触的方式(也就是说不接触物体)来测量物体的横截面,使用光学传感器系统和用于引起传感器系统和被测量物体的相对运动的装置, 传感器系统,其包括至少两个发射器,其发射彼此成角度的各个扫描光线并且被引导到各个接收器,所述接收器在被对象中断每个射线并随后停止所述中断时向评估单元提供信号; 所述配合的发射器 - 接收器对中的至少两个被布置为使得它们的扫描光线(或其平行于扫描光线的公共平面上的突起)彼此交叉并且相对于相对运动的方向成角度地延伸。