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利用线阵CCD自动测量航空相机镜头的焦距
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2009-06-25
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提出了一种以线阵CCD 固态传感器取代读数显微镜的航空相机镜头焦距测量系统。论述了系统的工作原理、软件和硬件的设计及系统的测量误差。结果表明,利用线阵固态图像传感器取代读数显微镜,把特定物体经透镜成像的大小转换为电信号的脉宽,并利用计算机技术自动处理测量数据,从根本上克服了用读数显微镜进行测量的缺陷,实现了航空相机镜头焦距的实时精确地在线测量。
关键词: CCD ; 镜头; 焦距; 硬件; 软件
Abstract : An auto2measuring system of aerial camera lens is presented , which substitutes linear array CCD sensor for read2 ing microscope to measure the focus of aerial camera lens. The principle , the hardware , the software and the measuring error of the system are described. The exprimental resuts indicate : by substituting linear array image sensor for reading miroscope , changing the height of the photo of specific object through lens into the width of electronic pulse , and progressing measuring da2 ta by computer automatically , the disadvantages of microscope can be overcome and the accurate , real2time and on2line measure2 ment of the focus of aerial camera lens can be realized.
Key words : CCD ; lens ; focus ; hardware ; software
关键词: CCD ; 镜头; 焦距; 硬件; 软件
Abstract : An auto2measuring system of aerial camera lens is presented , which substitutes linear array CCD sensor for read2 ing microscope to measure the focus of aerial camera lens. The principle , the hardware , the software and the measuring error of the system are described. The exprimental resuts indicate : by substituting linear array image sensor for reading miroscope , changing the height of the photo of specific object through lens into the width of electronic pulse , and progressing measuring da2 ta by computer automatically , the disadvantages of microscope can be overcome and the accurate , real2time and on2line measure2 ment of the focus of aerial camera lens can be realized.
Key words : CCD ; lens ; focus ; hardware ; software
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