METHOD FOR HIGH PRECISION OPTICAL DISTANCE MEASUREMENT USING AN ADJUSTABLE POINT LIGHT SOURCE AND MULTI-CHANNEL CCD SENSOR ARRAYS BASED ON OPTICAL TRIANGULATION AND POINT BY POINT SCANNING, ESPECIALLY CONTACTLESS MEASUREMENT OF THREE DIMENSIONAL OBJECTS

摘要

The invention relates to a method for high precision optical distance measurement using an adjustable point light source and multi-channel CCD sensor arrays based on optical triangulation and point by point scanning, especially contactless measurement of three dimensional objects. According to the invention, measurement values exceeding a given threshold value with respect to a measuring point are centrally and simultaneously captured in all channels. Said values form an initial local measurement pulse value, whereby peripheral data indicates in each case a measurement pulse. The measurement pulses are subsequently evaluated with respect to pulse form, amplitude, width, multi-pulses or the like, together with pulse location in order to output assembled, averaged measurement data that corresponds solely to given test criteria for external data storage and further processing.