Coil-identification algorithm inside a high-precision triangulation sensor for residual shorts measurement of coiling materials

With this publication a coil identification algorithm inside a high precision triangulation sensor for residual shorts measurements of cooling material is presented. The sensor is a stand-alone system. A digital signal processor, a field programmable gate array and a microcontroller collect and process the data of the linear CCD-sensors. The basic element of the sensor is a symmetrical arrangement of two laser emitters and their receiving optics. Due to this arrangement we get a stable thermal behavior of the sensor. Furthermore this paper gives some detailed information about the accuracy, resolution and the measuring range of the sensor. One industrial application is listed at the end of this paper.