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介绍了便携式油罐参数测试仪的工作系统及电路设计。它是以短波吸收为机理，测量油罐中原油的液位、油水界面以及油中含水率等参数的一种仪器。该仪器分为一次表（探头）和二次表两部分。仪表的整个检测过程由电磁波发生器产生稳频、恒幅的电磁波向介质中辐射，通过检测器检测出介质对电磁波能量的吸收，然后再进入信号处理、鉴别，最后把处理完的信号分别输出给含水率指示表和蜂鸣器。该仪器在大庆、辽河等油田使用表明，具有适用性强，测量准确，可防爆、防潮、耐腐蚀等特点。
The working system and circuit design of portable oil tank parameter tester are introduced. It is based on the mechanism of short-wave absorption, measuring the level of oil in the tank, oil-water interface and oil moisture content and other parameters of an instrument. The instrument is divided into a table (probe) and two tables in two parts. Instrumentation throughout the detection process by the electromagnetic wave generator to produce frequency stability, the constant amplitude of the electromagnetic radiation to the medium through the detector to detect the media on the absorption of electromagnetic energy, and then enter the signal processing, identification, and finally the processed signal output Water content indicator and buzzer. The instrument in Daqing, Liaohe and other fields that use, with applicability, accurate measurement, explosion-proof, moisture-proof, corrosion-resistant and so on.