CAJ | 학술논문

食用油关系人们身体健康,现有技术不能实现快速方便检测。提出以新型叉指电容传感器为基础,基于介电常数测量原理,采用电容数字转换芯片AD7746,利用I2 C串口协议和微控制器PIC18F452单片机进行通信,实现电容数据的采集和处理,构成一个快捷实时食用油检测系统。首先对常见的食用油进行测量,再依次加地沟油进行测量,最后对不同煎炸时间的食用油测量其中电容变化,得出实验数据。结果发现煎炸时间越长,油中极化分子越多,对健康影响越大。
식용유관계인문신체건강,현유기술불능실현쾌속방편검측。제출이신형차지전용전감기위기출,기우개전상수측량원리,채용전용수자전환심편AD7746,이용I2 C천구협의화미공제기PIC18F452단편궤진행통신,실현전용수거적채집화처리,구성일개쾌첩실시식용유검측계통。수선대상견적식용유진행측량,재의차가지구유진행측량,최후대불동전작시간적식용유측량기중전용변화,득출실험수거。결과발현전작시간월장,유중겁화분자월다,대건강영향월대。
Edible oil quality is related to people healthy,existing technology can’t realize the convenient and fast de-tection. This paper studied on the basis of the interdigital capacitance sensor,based on the dielectric constant meas-urement principle,useing capacitance AD7746 digital conversion chip which utilizes I2 C serial interface protocol and communicates with micro controller PIC18F452 single chip, achieves capacitance data acquisition and processing,forms a shortcut edible oil detection system in real time. First of all,to measure common cooking oil,then this experiment measure illegal oil in turn. Finally,by having measured the capacitance change of cooking oil with different frying time,we’ve achieved the rapid detection of different quality cooking oil. The results found that the longer of the frying time,the more of the polarized molecules in oil,the greater the impact on health.