【摘要】 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 89C5 1单片机的数据滤波算法更多还原

【Abstract】 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.更多还原