| 基于CompactRIO的平面型黑体温度控制 |
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| 引用本文： | 徐惠,肖功海,亓洪兴.基于CompactRIO的平面型黑体温度控制[J].红外,2011,32(4):7-10. |
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| 作者姓名： | 徐惠 肖功海 亓洪兴 |
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| 作者单位： | 中国科学院上海技术物理研究所,上海,200083 |
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| 摘 要： | 机载多光谱扫描仪大多采用大口径平面型黑体作为机上实时热参考源.由于机载环境温度的变化范围宽,而且黑体表面温度容易受气流的影响,如何对大口径平面型黑体进行高精度温度控制是机载多光谱扫描仪设计的一个难点.设计了一种新的平面型黑体温度控制系统.该控制系统先通过基于CompactRIO的嵌入式PID算法产生PWM信号,然后用H...
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| 关 键 词： | 平面型黑体 CompactRIO 温度控制 |
| 收稿时间： | 2011/2/25 0:00:00 |
| 修稿时间： | 3/2/2011 9:59:02 AM |
Planar Blackbody Temperature Control Based on CompactRIO |
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| Xuhui,Xiao Gonghai and Qi Hongxing.Planar Blackbody Temperature Control Based on CompactRIO[J].Infrared,2011,32(4):7-10. |
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| Authors: | Xuhui Xiao Gonghai and Qi Hongxing |
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| Affiliation: | Shanghai Institute of Technical Physics Chinese Academy of Sciences,Shanghai Institute of Technical Physics Chinese Academy of Sciences,Shanghai Institute of Technical Physics Chinese Academy of Sciences |
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| Abstract: | Airborne multispectral scanners usually use large diameter planar blackbodies as their thermal reference sources.Because of the wide temperature range in air environment and the fact that the surface of a planar blackbody is susceptible to air flow,it is difficult to control the temperature of a large diameter planar blackbody accurately when designing an airborne multispectral scanner.A new temperature control system for planar blackbodies is designed.The system firstly uses an embedded PID algorithm based on CompactRIO to generate PWM signals and then uses the PWM signals amplified via an H bridge to control the heating and cooling of a thermopile.The experimental result shows that in air environment,the control system can adjust the temperature of a planar blackbody to the range of±20℃of the ambient temperature with a control accuracy of±1℃.It can meet the application requirement of a thermal infrared source. |
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| Keywords: | planar blackbody CompactRIO temperature control |
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