http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Zibo Zhuang (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Visibility Measurement in an Atmospheric Environment Simulation Chamber
Hongda Ta,Zibo Zhuang,Lihui Jiang,Dongsong Sun 한국광학회 2017 Current Optics and Photonics Vol.1 No.3
Obtaining accurate visibility measurements is a common atmospheric optical problem, and of vitalsignificance to civil aviation. To effectively evaluate and improve the accuracy of visibility measurements,an outdoor atmospheric simulation chamber with dimensions of 1.8×1.6×55.7 m3was constructed. Thesimulation chamber could provide a relatively homogeneous haze environment, in which the visibility variedfrom 10 km to 0.2 km over 5 hours. A baseline-changing visibility measurement system was constructedin the chamber. A mobile platform (receiver) was moved from 5 m to 45 m, stopping every 5 m, tomeasure and record the transmittance. The total least-squares method was used to fit the extinctioncoefficient. During the experiment conducted in the chamber, the unit weight variance was as low as1.33×10-4under high-visibility conditions, and the coefficient of determination (R2) was as high as 0.99under low-visibility conditions, indicating high stability and accuracy of the system used to measure theextinction coefficients and strong consistency between repeated measurements. A Grimm portable aerosolspectrometer (PAS) was used to record the aerosol distribution, and then Mie theory was used to calculatethe extinction coefficients. The theoretical results were found to be consistent with the measurements andexhibited a positive correlation, although they were higher than the measured values.
DBpia
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
