摘要
本文介绍了一种新型超声波气体流量计的研制。利用超声波检测流量原理,针对超声波在气体流体中衰减极大的问题,结合单片机技术和高频电路设计技术,设计了一种全新的脉冲串发射电路,能极大的改善接收波形,提高测量的精度和抗干扰能力。它采用分离式设计,显示模块提供了多种标准输入输出接口,亦可作为单独使用的仪表。
The paper presents a new ultrasonic gas-flowmeter. With the theory of measuring flow by ultrasonic, a new high voltage pulse cluster transmitting circuit is designed based on the singlechip and high frequency circuit technology. It can improve received waves obviously. The display module provides several I/O interfaces, and can be used as an individual instrument.
出处
《自动化技术与应用》
2005年第5期67-69,共3页
Techniques of Automation and Applications
