便携式矿物近红外光谱仪器的研制

Development of the Portable Mineral NIR Spectrometer

为实现野外现场矿物分析,仪器采用了交叉复折式单光路光栅扫描分光系统。解决了系统部件安装空间与系统体积之间的矛盾。采用正弦传动等结构,保证了仪器的精度;采用锁定放大、同步累积等微弱信号检测方法,提高了系统的信噪比;采用低功耗设计和间断式工作方式,大大降低了系统的功耗。测试实验对比表明其主要技术指标已经接近国外同类产品的水平。

In order to implement the field mineral analysis in situ,the portable NIR spectrometer includes a cross single optical path grating scan framework to settle the conflict between the setting space of parts and the system volume. A sine gearing is used to ensure its precision, the week signal acquiring techniques of locking and amplifier, synchronization cumulation is taken to improve its signal-to-noise ratio, the methods of low power design and interrupted working is used to reduce the system power. The experiment indicates its main technical parameters have achieved the level of the congener foreign products.