
利用超声波测量液面高度是一种精度较高、费用低廉的测量技术。介绍了已研制完成的超声波液面仪的原理、系统构成和软、硬件设计思路,并提出了适合89C51 单片机的数据滤波算法。
英文摘要:The measurement of liquid level height by using ultrasonic is a measuring technique with high precision and low cost . An ultrasonic liquid level indicator that we developed was introduced in this paper. It included the principle and systematic structure , as well as the design of its software and hardware. A filtering algorithm suitable for 89C51 single-chip microcomputer data was proposed.