| 光子计数中一种高速可程控参考电压鉴别器的设计 |
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| 引用本文： | 肖迎春,刘学明,张涛. 光子计数中一种高速可程控参考电压鉴别器的设计[J]. 宇航计测技术, 2007, 27(1): 52-55 |
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| 作者姓名： | 肖迎春 刘学明 张涛 |
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| 作者单位： | 中科院上海技术物理所,上海,200083 |
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| 摘 要： | 利用数字电位器和高速比较器MAX9012,设计了一种参考电压可程控用于光子计数的鉴别器,通过I~2C总线对数字电位器的阻值调节实现门限调整。实验表明该鉴别器输出信号质量良好,满足了设计要求。具有调整方便,精确,温度系数小等优点,为微弱光信号检测奠定了基础。
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| 关 键 词： | 鉴别器 比较器 数字电位器 I2C总线 |
| 文章编号： | 1000-7202(2007)01-0052-04 |
| 修稿时间： | 2006-04-11 |
Design of High-Speed Programmable Reference Voltage Discriminator Used in Photon Counting |
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| XIAO Ying-chun,LIU Xue-ming,ZHANG Tao. Design of High-Speed Programmable Reference Voltage Discriminator Used in Photon Counting[J]. Journal of Astronautic Metrology and Measurement, 2007, 27(1): 52-55 |
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| Authors: | XIAO Ying-chun LIU Xue-ming ZHANG Tao |
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| Abstract: | based on digital potentiometer and high-speed comparator MAX9012. Design a discriminator used in photon counting. Threshold adjustment can be realized by controlling the resistance value of digital potentiometer. During experiment, the discriminator output a signal of good quality and meet the goal of design. Further more it's convenient adjustment, precise control, low temperature coefficient which lay a foundation for weak light detection. |
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| Keywords: | Discriminator Comparator Digital potentiometer I~2C bus |
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