摘要
简要介绍一种新型的井下超声波石油流量计。采用的是倾斜式换能器布放方式,可以提高井下石油流量的测量精度;该流量计利用新一代高性能车用温度级别的CPLD芯片LC4128ZC-75T100E代替分立元件,能简化超声流量计的电路设计,也提高了系统的稳定性和测量精度,解决了井下系统需要的体积和温度要求。
A new kind of downhole ultrasonic flowmeter is introduced, which increases the measurement accuracy of downhole flowmeter by using a leaning mode to deploy transducers. Instead of discrete devices, a new CPLD chip, LC4128ZC-75T100E, is used in the circuit design, leading to a compact and robust system.
出处
《声学技术》
CSCD
北大核心
2006年第5期411-414,共4页
Technical Acoustics
关键词
超声流量计
井下仪器
高温高压
CPLD
ultrasonic flowmeter
downhole tool
high temperature high pressure
CPLD
