一种新型透明溶液浓度检测系统的设计

Design of a Novel Detection System for Transparent Solution Concentration

为了实时、快速准确检测透明有机溶液浓度,以电容传感器作为检测装置,单片机STC89C51作为处理器,液晶LCD1602作为显示模块,提出了一种透明溶液浓度检测系统。系统主要针对二元有机溶液进行检测。当溶液浓度变化引起电容值变化,通过谐振电路转换成频率的变化量,再由单片机系统处理并显示出来。对系统硬件和软件进行了设计,并且针对乙醇溶液与葡萄糖溶液进行测试。

For real-time,fast,and accurate detection of transparent organic solution concentration,with a capacitive sensor as the detecting device,a microcontroller STC89C51 as the processor,a LCD 1602 as the display module,a detection system for transparent solution concentration,the research proposes a detection system for transparent solution concentration.The system is mainly intended for detection of binary organic solutions.The solution concentration variations lead to capacitance value variations.They can be further converted into frequency variations through the resonant circuit,and processed and displayed by a single chip microcomputer system.This paper involves designing of the system hardware and software and testing of the ethanol solution and glucose solution.