[光学成像的精度有多高?]

Deutsche zahnarztliche Zeitschrift Pub Date : 1991-09-01

C Benz, P Schwarz

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引用次数: 0

摘要

本研究的目的是评估用cerec装置获得的光学压印精度。Cerec提供了z数据和高度(r = 1)之间的线性相关性，一个比特代表49微米。重复测量可提供+/- 49微米范围内的像素-z数据和+/- 5微米范围内的表面平均值(484像素)。偏差发生在与测量方向平行的区域附近。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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[How precise is the optical Cerec impression?].

The purpose of this investigation was to evaluate the precision of optical impressio obtained with the Cerec-device. Cerec provides a linear correlation between z-data and altitude (r = 1), one bit representing 49 microns. Repeated measurements deliver pixel-z-data within a range of +/- 49 microns and surfaceaverages (484 pixel) within +/- 5 microns. Deviations occur near areas with parallel orientation to the direction of measurement.

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Deutsche zahnarztliche Zeitschrift

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