公开(公告)号：US3874798A

公开(公告)日：1975-04-01

申请号：US36764873

申请日：1973-06-06

Applicant: AGA AB

Inventor： ANTONSSON LEIF-GORAN ,  REDLUND JOEL KARL GOSTA ,  ROSENGREN KARL YNGVE KJELL

IPC: G01B11/04 ,  G01B11/08 ,  G01B11/10

CPC classification number: G01B11/105 ,  G01B11/08

Abstract: A method and apparatus for contactless measuring of a dimension of movable objects wherein opposite borders of an image of a movable object are projected in one dimension upon a respective one of a pair of opto-electrical devices, each of the optoelectrical devices being comprised of an array of light sensitive elements. The opto-electrical devices are scanned successively at a predetermined repetition rate, the scanning being performed with a simultaneous start from that end of each opto-electrical device which is covered or shadowed by the image of the object. The signals from the illuminated and shadowed-out light sensitive elements of the opto-electrical devices are then detected and the dimension of the object is then determined.

Abstract translation: 一种用于对可移动物体的尺寸进行非接触式测量的方法和装置，其中可移动物体的图像的相对边界以一个尺寸突出在一对光电装置的相应的一个上，每个光电装置被包括 的一组光敏元件。 光电器件以预定的重复频率被连续地扫描，扫描由从物体的图像覆盖或遮蔽的每个光电器件的端部同时开始执行。 然后检测来自光电器件的照明和阴影的光敏元件的信号，然后确定物体的尺寸。