Patent ID: 8238661
Filing Date: 2012-08-07
Classification: G01B

Abstract:
1. A device for contactlessly determining surface profile of moving objects comprising: a pulse illumination unit including a pulsed light source and a transparency, the pulse illumination unit projecting an image of the transparency onto a surface of an object, the object surface distorting the image of the transparency; an image recording unit that records the distorted image of the transparency, the image recording unit including a camera with field interlacing of a first half-field and a second half-field, the camera having a field sweep frequency associated with movement of the object surface; a computer that processes a surface profile for the object according to the distorted image of the transparency recorded by the image recording unit; and a control unit, wherein the control unit synchronizes illumination pulses from the pulse illumination unit with the first half-field associated with the field interlacing of the camera while the image recording unit records the distorted image of the transparency, and the control unit synchronizes the image processing by the computer with the field sweep frequency of the camera.