| 基于电流镜积分读出电路的X射线CMOS图像传感器研究 |
| |
| 引用本文： | 张文普,袁祥辉,吕果林,黄友恕.基于电流镜积分读出电路的X射线CMOS图像传感器研究[J].传感技术学报,2004,17(4):647-650. |
| |
| 作者姓名： | 张文普 袁祥辉 吕果林 黄友恕 |
| |
| 作者单位： | 重庆大学光电技术及系统教育部重点实验室,重庆,400044;解放军重庆通信学院,重庆,400035;重庆大学光电技术及系统教育部重点实验室,重庆,400044 |
| |
| 摘 要： | 基于电流镜积分读出电路的X射线CMOS图像传感器(CMI-X-IS)的原理,并对电流镜积分读出电路进行了计算机模拟.对CMI-X-IS的性能参数进行了测试,并对光电转换特性曲线进行了分析.设计了CMI-X-IS的应用电路,得到了不同密度、不同尺寸材料的视频信号波形.测试结果和实验表明,CMI-X-IS具有较低的暗噪声、较大的响应度、较高的输出电压和较宽的动态范围,可以应用于X射线实时成像检测领域.
|
| 关 键 词： | 电流镜积分读出电路 X射线图像传感器 计算机模拟 光电转换特性 应用电路 视频信号 |
| 文章编号： | 1004-1699(2004)04-0647-04 |
| 修稿时间： | 2004年4月30日 |
Research for X2Ray CMOS Image Sensor Based on Current
Mirroring Integration Readout Circuit |
| |
| ZHANG Wenpu,YUAN Xianghui,LU Guolin,HUANG Youshu.Research for X2Ray CMOS Image Sensor Based on Current
Mirroring Integration Readout Circuit[J].Journal of Transduction Technology,2004,17(4):647-650. |
| |
| Authors: | ZHANG Wenpu YUAN Xianghui LU Guolin HUANG Youshu |
| |
| Affiliation: | ZHANG Wen pu 1,2,YUAN Xiang hui 1,LU Guo lin 1,HUANG You shu 11. Key Laboratory of the Ministry of Education: Laboratory of Optoelectronic Technology andSystem in Chongqing University,Chongqing 400044,China,2. PLA Chongqing Communication Institute,Chongqing 400035,China |
| |
| Abstract: | The principle of X ray CMOS Image Sensor baesd on readout circuit called Current Mirroring Integration (CMI X IS) was introduced,and computer simulation of the current mirroring integration readout circuit was fulfilled. Performance parameters of CMI X IS were measured, and the curve of photoelectric conversion characteristic of CMI X IS was analyzed. The application circuit of CMI X IS was designed, the video signal waveform of different density and different size material was obtained. The measurement result and experiment show that CMI X IS has some characteristics of lower noise of dark output voltage, larger responsivity, higher output voltage and wider dynamic range. CMI X IS can be used for X ray real time radioscopy inspection fields. |
| |
| Keywords: | current mirroring integration readout circuit X-ray image sensor computer simulation photoelectric conversion characteristic application circuit video signal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《传感技术学报》浏览原始摘要信息 |
|
点击此处可从《传感技术学报》下载全文 |
|
