Accuracy of the thin metallic wires diameter using fraunhofer diffraction technique

摘要

The purpose of this paper is to improve the metallic wire diameter measurement. The size of some thin wires and slits has been achieved using the spectrogoniometer which represents good alternative system of detection. The fact that, the technique of measuremnet may be regarded as bringing more calibrated diameter. Since it provides wide range of detection, possibility of control the out put signal readjusting a minimum of points per fringe and few image error to deal with comparing to other measurement techniques. The target-arm of detection rotated and drifted by a stepping motor of high resolution.