一种新型单片集成光谱传感器的波长定标方法

摘要

新型短波红外单片集成光谱传感器(MCSS)是光谱传感物联网的核心感知部件.提出了一种MCSS的波长定标方法,根据相对光谱响应度和波长分配原则把相邻像素组成一个定标通道.分别采用MCSS和两款商用光谱仪测量标准物质的光谱.实验结果表明,平均定标偏差为1.8 nm,与一款具有相似FWHM和取样间隔的商用光谱仪接近,能够满足实际应用的需要.%A new near-infrared monolithically integrated multichannel spectral sensor (MCSS) serves as a key component of Spectral-sensing Internet of Things (SSIOT).A wavelength calibration method for the MCSS was proposed.The method is based on the relative spectral response and includes specific principles of wavelength allocation.Several pixels comprised a channel with the calibrated wavelength.Experimental tests Were conducted in the calibrated MCSS and other two commercial spectrometers.The compared spectrum results demonstrated calibration accuracy of 1.8 nm on average,with performance as good as a commercial spectrometer equipped with similar FWHM and sampling intervals,which can meet the application demand.