说明：  液位测量一直与自动化密切相关，几乎遍及生产与生活的各个领域。近年来由于新 检测原理及微电子技术的发展和应用，使得液位测量仪更趋向小型化和智能化，逐步实 现了故障诊断和报警，高精确度、高可靠性、安全性和多功能化。 本文研制的液位和液体流速实时检测系统可以自动检测液位，精确测量液体流速， 并能将每个下位机的液位和液体流速信号传送至上位机，在上位机对各个下位机的信号 进行巡回检测和显示。当液位低于设定下限值、液体流速过高或过低时，在上位机和相 应下位机都能发出声光报警，提醒有关人员及时处理。 本系统以8051为核心，检测液体的液位、液体流速和有无气泡，从而可以显示、 报警。同时与上位机通过无线方式传送每个下位机的数据。
(The location measurement of the liquid has been closely related to automation all the time, nearly spread all over production and each field of living. Measure development and application of the principle and microelectric technique newly in recent years, make the location measuring apparatus of the liquid tend to miniaturize and intelligent even more, has realized progressively the trouble is diagnosed and called the police, high accuracy)