CMT型光学密度计数据采集处理系统的设计  

Design of a data sampling and processing system for CMT densitometer.

作　　者：曾科军[1] 黄瑜[1] 

机构地区：[1]91550部队94分队

出　　处：《分析仪器》2006年第1期15-18,共4页Analytical Instrumentation

摘　　要：光学密度计是一种测量胶片感光性能的专用仪器。本文设计了一种用于CMT型光学密度计、基于增强型并行口(EPP)的数据采集卡,实现对测量信号的转换和采集,避免电源波动及其它冲击对模拟电路信号的影响,有效提高了测量的准确性和稳定性。同时,针对数据采集过程编写了专门的数据处理软件,实现对测量参数的自动计算。Densitometer is an apparatus used for measuring photosensitivity of films. In order to increase the accuracy and stability of photosensitivity measurement, a data sampling card based on EPP （enhanced parallel port） has been designed for CMT densitometer. The data sampling card transforms and samples measurement signal and can avoid the influence of power fluctuation and other impacts on analog signals. Special software has been written for data processing and parameter calculation.

关 键 词：光学密度计 数据采集 数据处理 增强型并行口 

分 类 号：TH74[机械工程—光学工程]