扫描仪位置误差自动修正方法  

Method for auto modification of position error of scanner

作　　者：张全法[1] 冯书庆[1] 齐永奇[1] 庄春意[1] 

机构地区：[1]郑州大学物理工程学院,河南郑州450052

出　　处：《传感器与微系统》2007年第4期76-78,共3页Transducer and Microsystem Technologies

摘　　要：在使用扫描仪测量微生物抑菌圈直径的过程中,受扫描仪工作原理的影响,存在着较大的系统误差。讨论了如何对扫描仪测量结果进行自动修正。通过Visual C++6.0编程,利用TWAIN标准,自动确定出随意摆放的被扫描物体在扫描仪工作平面上的位置。利用已知大小的物体,预先确定出各处的修正系数。实际测量时,可根据被测物体的位置,对结果进行自动修正,有效地减小位置误差的影响。实验获得了很高的测量精度,最大误差为0.18%。When using scanner to measure the diameter of microbe bacteriostatic rings, the system error is very big because of the principle of scanner. Method for auto modification of measurement result is discussed. By Visual C＋＋ 6.0 programming,the position of the scanned object that is placed on the work plane of scanner at will is determined by technology without an interesting name （TWAIN） protocol. Using a circular object, whose diameter is measured manually using high accurate tool, modifying coefficients are determined in advance. In real measuring, measurement result can be modified automatically according to the object position to reduce the influence of position error. Experiment maximum error is 0.18 percent.

关 键 词：扫描仪 位置误差 自动修正 TWAIN标准 VISUAL C++编程 

分 类 号：TM930.9[电气工程—电力电子与电力传动] TM930.115