The application of CPLD (complex programmable logic device) in ultrasonic flow measurement system is researched.
研究了复杂可编程逻辑器件(CPLD)在超声波流量测量系统中的应用。
In this paper, the principle of transit-time differential method of ultrasonic flow measurement is introduced along with the discussion of its advantages and disadvantages.
本文讨论了时差法成品油超声波流量计的基本原理、优缺点等。
Ultrasonic measurement methods are expected to solve the problem of dynamic flow measurement.
超声检测方法有望解决动态流量测量这一工程难题。
The characteristics of natural gas ultrasonic flowmeter and the problems to be in need of solution are described, and the result of practical flow measurement is analyzed.
阐述了天然气超声波流量计的特点和待解决的问题，分析了实流测试的结果。
To study a new type ultrasonic Doppler flow meter for industry flow measurement of the liquid in the airtight pipeline.
文中研究一种用于工业密闭管道流体流量测量的新型超声波多普勒流量计。
For the measurement of industrial sewage flow, a measuring system for sewage flow based on ultrasonic wave is introduced.
针对工业污水流量的测量问题，提出一个基于超声波的污水流量测量系统。
Ultrasonic flow meter is widely used in oil, gas and chemical industry because of its advantages of non-contact measurement, ease installation, low cost and so on.
超声波流量计因为其非接触测量、安装简便和费用低等优点，广泛的应用于石油、天然气和化工等领域。
On the analysis of the principle of ultrasonic distance measurement based on, given the realization of ultrasonic reversing radar system hardware design circuit diagram and software design flow chart.
在分析超声波测距原理的基础上，给出了实现超声波倒车雷达系统的硬件设计电路图和软件设计流程图。
This paper introduced the flow measuring principle of time-difference method of ultrasonic flow meter and the flow calculating method in flow measurement with velocity instrument.
论述了流速仪法测流及水轮发电机组现场效率试验的原理和计算方法。
This paper introduced the flow measuring principle of time-difference method of ultrasonic flow meter and the flow calculating method in flow measurement with velocity instrument.
论述了流速仪法测流及水轮发电机组现场效率试验的原理和计算方法。
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