便携式近红外光谱矿物分析仪分光系统研制  

Development of Spectrometric System of the Portable Mineral NIR Spectrometer

作　　者：王智宏[1] 林君[1] 武子玉[1] 朱虹[1] 占细雄[1] 

机构地区：[1]吉林大学智能仪器与测控技术研究所,吉林长春130026

出　　处：《岩矿测试》2005年第1期59-61,共3页Rock and Mineral Analysis

基　　金：中国地质大调查项目"野外现场矿物红外光谱分析方法研究及仪器研制"(199920190116)

摘　　要：自行研制了光机电一体化的便携式近红外光谱仪的分光系统,采用单光路光栅扫描机构,以单片机控制微型步进电动机驱动,正弦传动实现分光系统的线性波长扫描。仪器波长范围1300～2500nm,光谱分辨率7nm,波长准确性和重现性均小于2nm,全谱扫描时间小于70s,重量小于5kg,体积为260mm×190mm×130mm。The spectrometric system of the portable NIR spectrometer self-developed to measure the continuous diffused reflection spectrum of minerals in the field is a single optical path grating scan framework. It is driven by a mini-step motor controlled by a SCM (Single Chip Micyoco) and a sine gearing to linearity wavelength scan. This spectrometric system is an optical-mechanical-electronic integration, and its wavelength range is 1300~2500 nm with spectrum resolution of 7 nm.The wavelength veracity and reproducibility are all less than 2 nm . The full spectrum scanning time is less than 70 seconds, and its weight is less than 5 kg with volume of 260 mm×190 mm×130 mm.

关 键 词：分光系统 便携式 近红外光谱仪器 单片机 波长扫描 

分 类 号：TH744.123[机械工程—光学工程]