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不透明矿物反射光谱目前广泛应用的是可见光波段(尤以对470、546、589、650毫微米波长单色可见光最为常用)。近几年来,利用近红外反射光谱鉴别不透明吸收性矿物引起了人们的重视。除了多碱阴极的光电倍增管以外,对近红外光特别灵敏的接收器件是硅光电池。这种半导体新元件具有极不易老化、经济、简便、耐用的突出优点。
Opaque mineral reflectance spectroscopy is currently widely used in the visible light band (especially for the 470,546,589,650 nm wavelength monochromatic visible light is most commonly used). In recent years, the use of near infrared reflectance spectroscopy to identify opaque absorbent minerals has aroused people’s attention. In addition to the polybasic-cathode photomultiplier tube, a particularly sensitive receiving device for near-infrared light is a silicon photovoltaic cell. The new semiconductor components with very easy to aging, economic, simple, durable outstanding advantages.