This paper develops a new oil-water interface equipment based on the microchip MSC1210 and pressure differential transmitter. The pressure transmitter with high-precision was used for pressure measurement, and, it applies high precision A/D converter to data collection. To measure and display the height of the oil-water separate interface, relevant software is used to modify parameters. The whole process can indicate and control the discharge time. The application shows that this system runs stably and accurately under industry field environment. The system is practical and worthy of using abroad.%针对目前国内某些油田中油水分离的检测技术仍较为落后的现状,提出一种采用MSC1210单片机为核心的油水界面仪的设计;系统使用高精度的压力变送器进行压力侧量,通过MSC1210的高精度A/D转换器对数据进行采集,使用软件对现场参数进行修正,完成油田开采中对油水界面高度的侧量和显示,指示或控制排放废水或排放油品的时间;应用结果表明,该检测系统在工业现场环境下运行稳定,检测精度高,具有一定的实用和推广价值.
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