【摘要】 介绍了荧光分析法的原理并基于此原理设计了水中微量油在线检测仪。本文重点介绍了此仪器的控制系统的设计,通过采用信号放大器、滤波器及AD转换器实现了微弱信号的高精度放大。结合单片机和特定的程序流程,使仪器在水中微量油在线检测和自动控制方面得到了很好的应用。更多还原

【Abstract】 A new instrument for testing oil in water online by fluorimetry is introduced. the weak signal has been amplified by using operational amplifier ICL7650, second- order reverse- phase low pass filter, analog- digital converter AD574. As a center part, MCU control the instrument to achieve testing online, auto- control and communication.更多还原