【摘要】 基于小管径流量检测,采用高性能CPLD,实现了一种新的测量超声波渡越时间的方法。实验结果表明,应用CPLD技术可以显著地提高测时精度,简化电路的设计,提高了系统的稳定性和抗干扰能力,从而提高对流量的测量精度。更多还原

【Abstract】 A new ultrasonic transit time measure method is realized based on small tube flow-measurement,with the CPLD.The experimental results indicate: CPLD technique can improve time measuring precision,simplify circuit design,improve stability and anti-interference capability.Consequently,the measurement precision of flow is improve.更多还原