| 具有自动增益控制的零盲距半导体激光测距仪 |
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| 引用本文： | 余向东,张在宣,汪伟,郭宁,陈永良,吴晓彪.具有自动增益控制的零盲距半导体激光测距仪[J].激光与红外,2001,31(5):298-300,303. |
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| 作者姓名： | 余向东 张在宣 汪伟 郭宁 陈永良 吴晓彪 |
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| 作者单位： | 中国计量学院光电子技术研究所, |
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| 摘 要： | 文中从分析近距反射光强与距离之间关系入手，提出了一种自动增益控制电路。该动增益控制电路可根据反射信号幅度大小自动调节光电放大器的增益，使光电放大器输出的信号幅度稳定在一定范围内，从而降低了近距离因光电放大器输出信号幅度变化过大，甚至饱和失真而引起的测距误差，提高了近距测量精度，大大降低了近距盲距。
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| 关 键 词： | 自动增益控制 激光测距仪 零盲距 半导体 |
| 文章编号： | 1001-5078(2001)05-0298-03 |
A Pulse Type Semicondutor Laser Range Finder with Automatic Gain Control Technology |
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| YU Xiang-dong,ZHANG Zai-xuan,WANG Wei,GUO Ning,CHENG Yong-liang,WU Xiao-biao.A Pulse Type Semicondutor Laser Range Finder with Automatic Gain Control Technology[J].Laser & Infrared,2001,31(5):298-300,303. |
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| Authors: | YU Xiang-dong ZHANG Zai-xuan WANG Wei GUO Ning CHENG Yong-liang WU Xiao-biao |
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| Abstract: | An automatic gain control circuit is designed after analyzing the relationship between reflecting optical intensity and distance in this paper.The automatic gain control circuit can automatically control the gai n of the photoelectric amplifier by detecting amplitude of the reflecting signal .Such that the output signal amplitued of photoelectric amplifier can be control led in a constant range,then the measure tolerance caused by variable signal amp litude and signal saturation distortion in short distance can be deduced.Finally ,the range finder acquires higher precision,and the blind zone can be eliminated . |
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| Keywords: | range finder laser automatic gain control |
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