IRAF is the standard software for CCD photometry,and different values for aperture parameters and annulus are often selected in photometry,generally determined by FWHM,which directly influences the photometric errors.
CCD测光的标准处理软件是iraf,而在测光中常常要选择不同的测光孔径参数apertur和annulus的值,一般来说它们的值由FWHM来决定,FWHM选取直接影响到测光误差的大小,我们利用了云南天文台1。
This article introduced CCD photometry with IRAF which is used specially for astronomic image and data processing based on our long-term research and use.
文章对天文图像和数据处理软件IRAF在CCD测光中的使用做了介绍,在我们长期研究和使用该软件的基础上,对IRAF的CCD测光给出了我们研究与应用的结果,提出了最佳的参数设置,同时我们对IRAF在RedhatLinux中的安装过程进行了探研与总结。
We can get many important physical parameters of the objects by CCD photometry, such as the visual magnitude, the color index, the curve of variability, the timescale of variability, the distribution of spectrum power of faint objects and so on.
通过CCD测光，可以直接得到天体的视星等、色指数、光变曲线、光变时标、暗星的光谱能量分布等重要的物理参数。
Research for integration time of CCD photometric and observation;
CCD测光观测积分时间研究
On-line Inspection System for Coaxality Error of Journal Bearing Accessory Based on CCD;
基于CCD的滑动轴承套类零件同轴度误差实时检测系统
CCD-NIR Analysis of Acidity and Sugar Content in Apples;
苹果中糖酸度的CCD近红外光谱分析
A CCD Measuring System for the Rotary Precision of Spindle of Machine Tools;
机床主轴回转精度的CCD测量系统
The optical system construction and working principles of intelligent north-finding gyroscope system based CCD(charge coupled device)image sensor and DSP(digital signal processing)technology is described.
介绍了基于CCD图像传感器与DSP技术的陀螺仪智能寻北系统的结构与工作原理,重点介绍了与DSP有关的电子硬件和软件部分,寻北方法在DSP特定环境下的应用,给出了系统的硬件原理图和软件流程图,最后总结了这套系统在陀螺仪寻北中的优点。
An instrument for auto measuring the width and length of wood board which based on the one-dimensional linear array CCD(charge coupled device)sensor and computer technique is introduced.
本文采用一维线阵CCD,利用照相机镜头成像的方法,通过调节镜头焦距就能获得木材直径的一维图像,打破了其他检测装置用平行光扫描的局限性,消除了光线不平行带来的误差,省去了平行光产生、扫描、会聚装置(如抛物镜等),使复杂精密的光学系统简单化,降低了成本。
Charge Coupled Devices Applied in Digital Storage Oscilloscopes;
CCD器件在数字存储示波器中的应用
The driving schedule generator with optional output has been designed for CCD camera.
在分析了CCD器件驱动时序关系的基础上,设计了可选输出的驱动时序发生器。
It is not a negligent process of the calibration of CCD cameras in the processingimages which captured by CCD image system.
CCD 相机检校是 CCD输入影象处理的一个必不可少的过程。
A method using CCD camera and the laser triangulation principle to design a height adjusting system for laser cutti.
本文提出一种以CCD摄像机为检测工具,以激光三角测量法为原理的激光切割机高度跟随检测系统的设计方案。
Analysis of the Aperture Photometry for Blazar;
Blazar短时标光变的孔径测光分析
The calibrations of the CCD on HST WFPC2 are very important to improve the precision of astrometry and photometry.
对于哈勃空间望远镜(HST)来说,其广角行星照相机(WFPC2)的CCD性能的数据处理校正对提高天体测量和测光结果的精度有着重要意义。
This thesis is concerned with space·-based high--resolution opticalimaging of globular cluster cores,and the subsequent application ofimage—restoration and crowded—field photometry techniques,thus we maygain an improved understanding of the nature of the dynamics of globularclusters and the galax.
本文主要利用哈勃太空望远镜(HST)的行星广角照相机(WFPC2)对NGC6656的多历元、多波段观测资料来开展对该星团的高精度测光和动力学研究。