焦源距 的英文怎麼說
中文拼音 [jiāoyuánjù]
焦源距
英文
focus source distance-
The focal length of the conelensing lens should be such that the image of the source just fills the projecting lens.
聚光透鏡的焦距應使光源的像正好照滿放映透鏡。The focal length of a thermal imaging system was assessed by the magnification method using 4 - bar targets as infrared objectives
摘要採用實驗室中四桿靶紅外目標源，使其成像在熱成像系統自身的焦面探測器上，採用放大倍率法測量與計算出系統的焦距。Firstly, the system is divided into many modules according to different point of view ; secondly, to the hardware equipment - vidicon, lenses, revolver, shield and decode device, their principle of work has been explained ; thirdly, according to image identification experience and other indexes of the system, the focus of the lenses and relative aperture are calculated, and the type of the camera is confirmed, at the same time, the energy of infrared lamp is also computed in the thesis ; at the same time, synthesis control box is devised
首先，按照角度的不同，將系統劃分成許多模塊。其次，對硬體設備? ?攝像機，鏡頭，雲臺，防護罩，解碼器等的工作原理進行了闡述，再次，以人的成像辨認的經驗判據為依據，結合系統的其它指標，設計計算出鏡頭的焦距f 、相對孔徑d ，同時確定攝像機的型號，並計算出紅外燈光源。最後，對綜合控制箱進行設計，指出了設計的意義，實現的功能，並附上了綜合控制箱的外形圖。Hence, single station passive locating system has gradually received extensive attention for the advantages of being hard to be detected, strong antijamming ability and long detecting range
單站無源定位系統以其隱蔽性好、抗干擾能力強、作用距離遠等優點逐漸成為研究人員的關注焦點。分享友人