Improving the measuring resolution of CCD by curve fitting

Li Ding; Songcan Lai; Xinyi Wu

doi:10.1117/12.252108

25 September 1996 Improving the measuring resolution of CCD by curve fitting

Li Ding, Songcan Lai, Xinyi Wu

Proceedings Volume 2894, Detectors, Focal Plane Arrays, and Applications; (1996) https://doi.org/10.1117/12.252108
Event: Photonics China '96, 1996, Beijing, China

Abstract

When the dimension of measurand is measured with a charge couple device (CCD), the measuring accuracy is limited in interval of array photosensor. It we want to improve the measuring resolution, we often finish it by improving the magnifying power of optical system. But if we do this, we shall limit the measuring range of CCD. If using a analog- digital converter, we can get the pulse amplitude of CCD array photosensor. Using numerical method to the pulse amplitude, we can change intersect value to continuous value. With the segmentation level, we can get a improving resolution. In this paper, we give a hardware frame chart and the calculation course.

Citation Download Citation

Li Ding, Songcan Lai, and Xinyi Wu "Improving the measuring resolution of CCD by curve fitting", Proc. SPIE 2894, Detectors, Focal Plane Arrays, and Applications, (25 September 1996); https://doi.org/10.1117/12.252108

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