【摘要】 为满足光谱仪微型化、便携化的要求,并克服基于台式电脑处理系统的光谱仪在户外使用不便的缺点,研制了一种基于Android系统的微型光谱仪。介绍了仪器研制过程中的光学、机械、电子学以及应用软件(APP)的设计。光学系统利用平场全息凹面光栅简化系统光路结构,机械结构使用3D打印技术一体化成型。选用线阵CCD(TCD1304DG)作为光电探测器,用全新的STC15系列嵌入式微控制单元(MCU)为控制核心,采用Android USB(系统通用串行总线)接口用于通信,完成了Android系统下高分辨率光谱数据采集系统的设计。编制APP用于实时处理光谱数据。运用电子快门技术,实现了Android设备对CCD积分时间的实时在线可调,满足了便携式光谱仪在不同环境下的工作要求。设计方案以Android系统作为数据处理平台,代替了传统台式电脑处理系统,体现了较好的便携性优势。更多还原

【Abstract】 A spectrometer based on the Android processing system instead of the traditional personal computer system is developed in order to overcome the inconvenience in outdoor using and satisfy the needs of miniaturization and portability.The design of the optical system,mechanical structure,electronics and application program(APP)is introduced.To simplify the structure of the optical system,aplane holographic concave grating is used in the system,and the 3D printing technology is used to shape the mechanical structure.With a linear CCD array(TCD1304DG)as the photoelectric detector and an STC15 microcontroller unit(MCU)as the core,a high resolution spectrum data acquisition system based on the Android system is designed with Android USB(universal serial bus)communication.APP is developed for real-time processing of spectral data.The electronic shutter technology is utilized to realize the real-time adjustment of CCD integral time and satisfy the requirement on the portable spectrometer working in different environmental conditions.The design scheme uses the Android system as the data processing platform instead of the traditional personal computer system,exhibiting portability advantage.更多还原