%0 Journal Article %T 红外线透镜穿透率量测技术
Measurement Technology of Transmittance of Infrared Optical System %A 陈德请 %A 叶丰铭 %A 陈伟新 %J Optoelectronics %P 18-30 %@ 2164-5469 %D 2020 %I Hans Publishing %R 10.12677/OE.2020.101003 %X
红外光学系统系使用在8~12 μm红外光谱区域,此波段人眼看不到,可见光光学系统的穿透率量测方法无法使用,因此红外光学系统穿透率量测困难度相当高。红外光穿透率量测目前都是使用FTIR光谱仪,此仪器相当昂贵,维护成本高。本研究整合红外感测电路与精巧型红外准直光束进行红外光学系统穿透率的量测。量测系统由2mm红外准直光束、热电堆检知器(Thermopile sensor)、OP放大器与A/D IC及微处理器等所组成。热电堆将热辐射转换成模拟电子信号,此微弱电子信号再被OP放大器放大、A/D IC转换成数字、8051微处理器处理及量测结果经LCD显示器显示。待测镜组规格:焦距19mm,光圈f/1.1与镜组材料为黑钻石(Black Diamond? chalcogenide glass)。镜组穿透率经测试结果为89%。
Infrared optical system is used in 8~12 μm range of infrared spectrum, which cannot be seen by human eyes, and the transmittance measurement method of visible optical system cannot be used, and the transmittance of infrared optical system was difficult to measure. At present, FTIR spec-trometer is used to measure transmittance of infrared optical system, which is very expensive and expensive to maintain. In this study, the transmittance of infrared optical system is measured by integrating the infrared sensing circuit and the smart infrared collimating beam. The measurement system consists of 2 mm diameter infrared collimating beam, thermopile sensor, OP amplifier, A/D IC and microprocessor. The thermopile converts the thermal radiation into analog electronic signal, and amplifies by OP amplifier, converted into digital by A/D IC, processed by 8051 microprocessor and displayed by LCD. The specifications of the lens to be tested are: focal length 19 mm, the f-number f/1.1 and the material of the lens was made by the black diamond. The test result of transmittance of the lens was 89%.
%K 红外,穿透率,热电堆捡知器
Infrared %K Transmittance %K Thermopile Sensor %U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=34651