严兵, 李建彬, 孙红胜, 张虎, 李世伟, 魏建强, 任小婉. 动态高温温场测量装置研究[J]. 红外与激光工程, 2014, 43(4): 1312-1315.
引用本文: 严兵, 李建彬, 孙红胜, 张虎, 李世伟, 魏建强, 任小婉. 动态高温温场测量装置研究[J]. 红外与激光工程, 2014, 43(4): 1312-1315.
Yan Bing, Li Jianbin, Sun Hongsheng, Zhang Hu, Li Shiwei, Wei Jianqiang, Ren Xiaowan. Dynamic high temperature field measurement device[J]. Infrared and Laser Engineering, 2014, 43(4): 1312-1315.
Citation: Yan Bing, Li Jianbin, Sun Hongsheng, Zhang Hu, Li Shiwei, Wei Jianqiang, Ren Xiaowan. Dynamic high temperature field measurement device[J]. Infrared and Laser Engineering, 2014, 43(4): 1312-1315.

动态高温温场测量装置研究

Dynamic high temperature field measurement device

  • 摘要: 在航天用试验件进行风洞加热热试验时,试验件表面特定区域的温度可达1700℃甚至更高,对这种动态变化的区域温度场测量难度较高,一般只能使用成本昂贵的测温型红外热像仪实现,且对恶劣环境适应性不高。采用比色温度测量模型,选用近红外波段900nm附近两个波长作为测量波长,采用高动态响应CCD成像器件作为信号采集设备,保证了两个测量通道采集图像在空间上的对应,实现了测量区域内温度分布的测量,测量帧频最高可达40Hz,测量准确度小于6%。

     

    Abstract: On thermal test of aerospace research filed, wind tunnel is usually used for heating the sample up to 1 700℃. It is very difficult to measure dynamic temperature filed without using the expensive and non-flexible temperature metrical IR-camera. Based on colorimetric model, two selected near-infrared wavelengths near 900 nm were used and a high dynamic response CCD device was hired. Mechanic and optical design guaranteed space synchronization of collected images of two measurement tunnel. The device achieved temperature filed measurement, frame rate is up to 40 Hz, and the measurement accuracy is less than 6%.

     

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