CAJ | 학술논문

利用激波管加热技术,得到1000K～3000K温度范围内的高温空气,利用宽波段能量计、光电探测器以及滤波片等设备,测量出高温空气在0.3μm～9μm宽波段范围内绝对辐射功率,以及中心波长在4.26μm、5.23μm、8.32μm处、单位波长的绝对辐射功率;实验结果表明,在1000K～2000K温度范围内,高温空气宽波段的辐射功率约为60 W/cm~3·MP,且辐射主要集中在21μm～8μm波段范围内;当温度高于2000K以上,辐射功率随着温度的升高增大较快,且辐射向紫外、可见方向移动;在3000K时,高温空气在0.3μm～9μm宽波段范围内的辐射功率约为150W/(cm~3·MP).
이용격파관가열기술,득도1000K～3000K온도범위내적고온공기,이용관파단능량계、광전탐측기이급려파편등설비,측량출고온공기재0.3μm～9μm관파단범위내절대복사공솔,이급중심파장재4.26μm、5.23μm、8.32μm처、단위파장적절대복사공솔;실험결과표명,재1000K～2000K온도범위내,고온공기관파단적복사공솔약위60 W/cm~3·MP,차복사주요집중재21μm～8μm파단범위내;당온도고우2000K이상,복사공솔수착온도적승고증대교쾌,차복사향자외、가견방향이동;재3000K시,고온공기재0.3μm～9μm관파단범위내적복사공솔약위150W/(cm~3·MP).
The radiation in the wavelength range from 0. 3μm -0. 9μm emitted by shock - heated air at temperature from 1000K to 3000K has been experimentally estimated. With the energy detectors, photodiode detector and narrow-band infrared filters, the radiation intensities at 4.26μm, 5.23μm and 8. 32μm versus temperature are also intemperature from 1000K to 2000K, the radiation is mainly from the infrared band from 21μm to 8μm. The radiation power is increasing quickly when the temperature is above 2000K, and the radiation moving to ultraviolet -visible, the radiation power(0.3～9μm)is about 150W/(cm~3· MPa) when the temperature is up to 3000K.