芯片上的光學(xué)傳感器簡化手持式光譜儀設(shè)計

　　近紅外光譜或可見光譜中的光譜學(xué)提供了一種簡單的分析方法，用于在廣泛的應(yīng)用中表征材料。然而，適當(dāng)?shù)脑O(shè)備的成本和規(guī)模使技術(shù)無法獲得新的機會，特別是在移動和手持設(shè)備中。

　　直到最近。現(xiàn)在，AMS的單芯片多通道頻譜分析儀的可用性為開發(fā)人員提供了一個簡單的解決方案，以滿足新興的便攜式光學(xué)光譜學(xué)的需求。

　　How optical spectrum analysis works

　　Optical spectrum analysis is simple in concept. After illuminating a target with an appropriate light source， a reflection spectrometer uses optical filters to capture the distinct wavelengths of light that are reflected off the target. Note that absorption spectrometers operate similarly， but capture the wavelengths that remain after the source illumination passes through a target liquid solution.

　　Because the target’s materials absorb a characteristic set of wavelengths， analysis of the reflected light can reveal information about the target’s chemical composition. From its pioneering use in astronomy， chemistry， and physics， this basic technique has moved out of the lab， enabling a broad array of enterprise-level applications in pharmacology， medicine， and telecommunications.