한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제44권12호
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  • Pages.1054-1061
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  • 2016
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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마이크로 터보 엔진 배기 플룸에서의 적외선 신호 측정 및 검증

Measurement and Validation of Infrared Signature from Exhaust Plume of a Micro-Turbo Engine

  • Gu, Bonchan (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology) ;
  • Baek, Seung Wook (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology) ;
  • Jegal, Hyunwook (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology) ;
  • Choi, Seongman (Aerospace Engineering Department, Chonbuk National University) ;
  • Kim, Won Cheol (7th R&D Institute-2, Agency for Defense Development)
  • 투고 : 2016.08.23
  • 심사 : 2016.11.25
  • 발행 : 2016.12.01
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초록

적외선 신호에 대한 측정 시스템은 저피탐 기술 개발 및 전자기 방사의 분광 분석에 기여한다. SR (Spectroradiometer)의 적용은 배기 플룸에서 방사되는 열원만으로 복사량이 측정 가능하다. 마이크로 터보 엔진을 이용한 측정 시스템의 구축은 항공기 플룸을 모사하는데 목적을 두었다. 엔진은 성능 시험을 위해 테이블에 계측 장비와 함께 설치되었다. 배기 플룸 축과 수직을 이루도록 분광복사기를 위치하여 적외선 신호를 측정하였다. 원 데이터에 대한 보정을 위하여 흑체를 사용하여 참조 데이터를 획득하였고 플룸 신호와 비교하기 위해서 배경에 대한 신호도 측정하였다. 보정된 spectral radiance는 데이터 처리를 통해 계산되었고 밴드별로 분석되었다. 본 측정 시스템으로 종합적인 분석 연구가 가능하게 되었다.

Development of an accurate infrared signature (IR) measurement system is expected to contribute in the development of low observable technology and the spectroscopic analysis of electromagnetic radiation. Application of a spectroradiometer (SR) allows for the measurement of detailed infrared signature from the exhaust plume due to its own heat source. Establishment of a measurement system using a micro-turbo engine is intended to simulate the modelling of the aircraft plume. The engine was installed on a test stand to measure the engine performance. The IR signature was measured by placing the SR perpendicular to the axis line of the exhaust plume. Reference data from the blackbody were also measured to calibrate the raw data, and the infrared signature of the background was also measured for comparison with that of the plume. The calibrated spectral radiance was obtained through the data reduction process and the results were analyzed in specific bands. The experiments revealed that the measurement system established here showed sufficient performance for further comprehensive analysis.

키워드

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