CAJ | 학술논문

针对电导率传感器在测量时电导池存在电容效应，严重影响测量精度问题，提出了选频电导率测量法，设计了以 ATMEGA128单片机为主控制器的电导率测量系统。本文首先介绍电导率传感器测量原理和存在的问题，其次介绍选频法原理和实现，最后介绍系统整体硬件结构和功能，并以实际的测量结果证明了系统在提高测量精度方面的可行性。
침대전도솔전감기재측량시전도지존재전용효응，엄중영향측량정도문제，제출료선빈전도솔측량법，설계료이 ATMEGA128단편궤위주공제기적전도솔측량계통。본문수선개소전도솔전감기측량원리화존재적문제，기차개소선빈법원리화실현，최후개소계통정체경건결구화공능，병이실제적측량결과증명료계통재제고측량정도방면적가행성。
Conductivity sensor exists capacitance effect when measuring,which seriously affects the measurement accuracy.So we put forward the frequency selection measurement method and designed the electrical conductivity measurement system based on ATMEGA128 microprocessor,This paper firstly introduced the measurement principle and the existing problems of the conductivity sensor; then introduced the principle of frequency selection method; finally gave the whole hardware structure of the system and proved the feasibility in improving measurement precision based on the actual measurement results.