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本文提出了一种可靠性很高的在线原油水份测定的微波装置。此装置利用了微波反射原理,其中没有对温度或频率敏感的元件。组装的传感器结构简单紧凑,它由振荡器、定向耦合器、波导开关、功率探头,天线探头,电极板和特殊的阀体组成。传感器不仅提供了对应不同含水量的直流电压,而且提供了状态识别信号。实验结果表明,测量误差小于±1.5%。
This paper presents a highly reliable online measurement of crude oil moisture device. This device makes use of the principle of microwave reflection, with no temperature or frequency sensitive components. The assembled sensor has a simple and compact structure and consists of an oscillator, directional coupler, waveguide switch, power probe, antenna probe, electrode plate and a special valve body. The sensor not only provides the DC voltage corresponding to different water content, but also provides the status identification signal. The experimental results show that the measurement error is less than ± 1.5%.