应用光学
應用光學
응용광학
JOURNAL OF APPLIED OPTICS
2009年
6期
889-894
,共6页
直升机%夜间飞行观察系统%光电传感器%环境适应性%热设计
直升機%夜間飛行觀察繫統%光電傳感器%環境適應性%熱設計
직승궤%야간비행관찰계통%광전전감기%배경괄응성%열설계
helicopter%night vision pilotage system%photoelectric sensor%adaptability to environment%thermal design
根据直升机驾驶员夜间飞行观察系统(NVPS)的特点,对NVPS的环境适应性设计、光电传感器选取以及控制系统设计等问题进行仿真分析与计算.在系统热设计中热像仪传感器通过传导、对流或辐射将热传递到壳体上,由系统采取统一的散热措施,给出NVPS中伺服系统的2个主要工作模式,即随动与锁定的控制回路原理.仿真和计算结果表明:设计的NVPS系统中光学系统焦距为14 mm,f/#为1.9,瞬时视场为2.13 mrad,透射比≥80%;NVPS稳定性能可达到0.1 mrad,转弯速度为30°/s,机动飞行期间的锁定误差不超过0.1 mrad,对头盔的位置随动误差不超过1.5 mrad,系统随动速度可达到250°/s,角加速度可达到500°/s~2.
根據直升機駕駛員夜間飛行觀察繫統(NVPS)的特點,對NVPS的環境適應性設計、光電傳感器選取以及控製繫統設計等問題進行倣真分析與計算.在繫統熱設計中熱像儀傳感器通過傳導、對流或輻射將熱傳遞到殼體上,由繫統採取統一的散熱措施,給齣NVPS中伺服繫統的2箇主要工作模式,即隨動與鎖定的控製迴路原理.倣真和計算結果錶明:設計的NVPS繫統中光學繫統焦距為14 mm,f/#為1.9,瞬時視場為2.13 mrad,透射比≥80%;NVPS穩定性能可達到0.1 mrad,轉彎速度為30°/s,機動飛行期間的鎖定誤差不超過0.1 mrad,對頭盔的位置隨動誤差不超過1.5 mrad,繫統隨動速度可達到250°/s,角加速度可達到500°/s~2.
근거직승궤가사원야간비행관찰계통(NVPS)적특점,대NVPS적배경괄응성설계、광전전감기선취이급공제계통설계등문제진행방진분석여계산.재계통열설계중열상의전감기통과전도、대류혹복사장열전체도각체상,유계통채취통일적산열조시,급출NVPS중사복계통적2개주요공작모식,즉수동여쇄정적공제회로원리.방진화계산결과표명:설계적NVPS계통중광학계통초거위14 mm,f/#위1.9,순시시장위2.13 mrad,투사비≥80%;NVPS은정성능가체도0.1 mrad,전만속도위30°/s,궤동비행기간적쇄정오차불초과0.1 mrad,대두회적위치수동오차불초과1.5 mrad,계통수동속도가체도250°/s,각가속도가체도500°/s~2.
Night vision pilotage systems (NVPS) are used to assist helicopter pilots to realize taking off, landing and hedgehopping at night by providing the high-definition and large-area images. Based on the engineering application requirements and the state of art of the NVPS, the design methods of the NVPS are studied by analyzing and calculating some important issues, such as the design of adaptability to environment, the selection of photoelectric sensors and the design of control systems. The analysis and calculation results confirm the feasibility of the design, and the design shows that it is suitable when it applied in the engineering.
