CAJ | 학술논문

为满足野外现场矿物分析、遥感地而验证光谱分析等的需要,研制了实现光谱覆盖范围在400～2 500nm的宽谱段光纤光谱仪,介绍了仪器研制过程中的光学、机械与电子学设计.光学系统采用了光栅分光的水平反射式光路,对于不同的光谱探测谱段,采用了三路线阵探测器在光谱面的3个方向立体交错放置进行探测;用CPLD(complex prograrnmable logic device)实现对三路线阵光电器件时序逻辑信号的发生与驱动;采用14位高速ADC进行数模转换;采用USB2.0实现通讯.仪器体积小、光谱分辨率高、信号质量和测量速度等方面均达到了满意效果,测试结果表明,仪器实现了宽谱测量,光谱数据理想.
위만족야외현장광물분석、요감지이험증광보분석등적수요,연제료실현광보복개범위재400～2 500nm적관보단광섬광보의,개소료의기연제과정중적광학、궤계여전자학설계.광학계통채용료광책분광적수평반사식광로,대우불동적광보탐측보단,채용료삼로선진탐측기재광보면적3개방향입체교착방치진행탐측;용CPLD(complex prograrnmable logic device)실현대삼로선진광전기건시서라집신호적발생여구동;채용14위고속ADC진행수모전환;채용USB2.0실현통신.의기체적소、광보분변솔고、신호질량화측량속도등방면균체도료만의효과,측시결과표명,의기실현료관보측량,광보수거이상.
To meet the requirements of outdoor field mineral analysis and remote sensing ground verification spectral analysis,the wide-range fiber spectral instrument covering 400 nm-2 500 nm was developed.The present article illustrates the design of the optical,mechanical and electrical parts of the instrument.The optical system utilizes grating horizontal-reflecting light routeto implement the full coverage of the spectrum.Three line-array sensors are intercrossed in three directions on the spectrum sur-face to sense different spectrum ranges.CPLD device generates the sampling and driving temporal logic signals to the three line-array photoeleetrical devices.Fourteen bits high speed AD converts the analog signals into digital ones.USB 2.0 is used forcommunication.The final results demonstrate that while implementing the measurement of wide spectrum,the instrument is im-proved in size,spectrum resolving power,signal quality and measuring speed.Ideal spectrum data were acquired.