基于dsPIC通用数字信号控制器的液体折射率测量系统  

Liquid Index of Refraction Measurement System Based on dsPIC Digital Signal Controller

作　　者：张波[1] 孙鑫[1] 程传东[1] 

机构地区：[1]上海大学自动化系,上海200072

出　　处：《仪表技术》2009年第5期20-22,共3页Instrumentation Technology

摘　　要：提出一种基于dsPIC通用数字信号控制器(Digital Signal Controller,DSC)的液体折射率测量系统。分析了CCD图像传感器的工作时序、A/D转换器的工作时序。DSC器件内部集成的2个ADC模块简化了系统电路结构,节约了设计成本。实验证明利用此系统可以方便准确地测量液体折射率,准确度为±0.0005。A liquid index of refraction measurement system based on dsPIC Digital Signal Controller （DSC） which integrates two ADC modules is designed. As a result, the DSC device simplifies the circuit arrangement and reduces the cost of the measurement system. Measurement theory, overall design and CCD＇s driver are introduced. The CCD work timing and the ADC work timing are emphasized. The experiment shows it is convenient to measure the liquid index of refraction through application of this measurement system and the measuring accuracy is ± 0. 0005.

关 键 词：液体折射率 DSC CCD A/D转换器 

分 类 号：TM930[电气工程—电力电子与电力传动]