中国医疗设备2016，Vol.31Issue(9)：50-53,59,5.DOI:10.3969/j.issn.1674-1633.2016.09.012
X射线管灯丝发射特性曲线的拟合算法
Fitting Algorithm of the Filament Emission Characteristic Curve for X-Ray Tube
王晓明 1闫伟 1徐泽林 1陈荣 1崔少康1
作者信息
- 1. 中山市中医院 设备科，广东 中山528401
- 折叠
摘要
Abstract
As one of the important parameters of the X-ray tube, the filament emission characteristic curve used currently shall be stored in the generator, and then the filament current can be loaded to a predetermined value when the X-ray exposure is prepared. There are two methods to store the curve in the generator: data table format and curve equation method. The former has rapid access to the data and more storage space; and the latter is just opposite. Under the high calculating speed of the modern computers, the generator has adequate speed to acquire the data from the curve equation. This paper uses the VB software interface, and sample the filament emission curve of X-ray tube by point-by-point manner, then applies linear least-squares method to perform curve fitting. Finally, the filament emission characteristic curve is acquired so as to provide the value of X-ray tube filament heating current for the generator.关键词
X射线管/灯丝发射特性曲线/最小二乘法/曲线拟合Key words
X-ray tube/filament mission characteristic curve/the least squares/curve fitting分类
机械制造引用本文复制引用
王晓明,闫伟,徐泽林,陈荣,崔少康..X射线管灯丝发射特性曲线的拟合算法[J].中国医疗设备,2016,31(9):50-53,59,5.
