【摘要】 用PIC16C63单片机的捕捉功能来计算超声波在液体中的传播时间,进而计算出超声波在液体中的传播距离来实现对液位的精确测量。该系统测量精度高,性能稳定可靠。本文介绍了利用PIC16C63捕捉功能测量脉冲间隔的方法和超声波液位传感器的组成。更多还原

【Abstract】 The time between the send pulse and the back pulse can be captured using the capture function of the PIC16C63.The distance can be calculated by the time,the liquid level can be detected by this way.The system has the high precision and stabilizes performance.The measurement of the time between the send pulse and the back pulse using the capture function of the PIC16C63and consists of the liquid level detector have been described in this article.更多还原