实验表明选通细化超声流量计准确度等级为1.5级。
Experiment indicated that this flow meter reached 1.5 precision grade.
介绍了存储式超声流量计的仪器结构、测量原理和特点。
Introduced are the structure, measuring principle and speciality of the memory ultrasonic flowmeter.
超声流量计是通过检测流体流动对超声束（或超声脉冲）的作用以测量流量的仪表。
Ultrasonic flow meter fluid flow through the detection of ultrasonic beam (or ultrasonic pulse) effect to measure the flow meter.
介绍了生产测井超声流量计设计的理论基础以及仪器结构、电路原理、工作方式和特点。
Introduces the theory basis, structure, circuit principle, working mode and characteristics of ultrasonic flowmeter we designed.
本文介绍了电脑超声流量计的工作原理及软硬件系统设计思想，给出了提高测量精度、增强可靠性的方法。
This paper presents the principle of a ultrasonic flowmeter and its design on software and hardware. Some methods to improve the precision and reliability are also given in the article.
对杏711 63 2井的测井资料进行了分析，证明了该超声流量计设计合理，可以满足油田注入剖面测井的需要。
Logging data analysis of Well X7-11-632 proves that the design of this ultrasonic flowmeter is proper and can meet the need of injection profile logging of oilfields.
介绍了一种多声道超声气体流量计的电路设计。
This paper presents the electrocircuit design of a multi-path ultrasonic gas flowmeter.
简单叙述了超声传感器用于明渠流量计的测量原理。
The measuring principle of ultrasonic transducer in open ditch flowmeter is described briefly.
用于监测液态烃传输的超声多路径流量计。
Ultrasonic multipath flowmeters for liquid hydrocarbon custody transfer.
以多普勒法的谷物收获超声波流量计为研究对象，进行谷物收获系统和超声波流量计的前期研究。
We research corn harvest system of ultrasonic flowmeter by Doppler in this paper, start the prophase research work on corn harvest system and ultrasonic flowmeter.
并根据宽波束超声波流量计的特点重点进行了自动增益控制放大器和跟踪带通滤波器的设计。
Based on the characteristic of the Wide-beam ultrasonic flowmeter, automatic gain control amplifier and the tracking band-pass filter are devised.
文章报导了一种新型高精度超声波流量计的系统设计。
This article describes the design of a high precision ultrasonic flowmeter.
小管径频差法超声波流量计的测量精度受各种因素的影响，因而获得较高精度比较困难。
The precision of the ultrasonic flowmeter with small tube diameter and frequency difference method is affected by several factors, so to gain more accuracy is difficult.
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。
To study a new type ultrasonic Doppler flow meter for industry flow measurement of the liquid in the airtight pipeline.
本文主要概述了U 2000型超声波流量计原理、安装要求及其特点和应用。
The paper is mainly described the design principle. Erect requirement and application of U2000 type ultrasonic flow meter.
介绍了热量表采用的电磁式、超声波式、机械式流量计的技术特点。
The technical characteristics of electromagnetic, ultrasonic and mechanical flowmeters used in heat meters are introduced.
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。
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.
介绍了超声波流量计的工作原理，测量方法及其在制盐生产中的应用，并提出了选用时应注意的一些问题。
Work theory, measure method of ultrasonic waves flowmeter and its application in salt production is introduced, some questions in selection and application of the flowmeter are pointed out.
文章指出采用便携式超声波流量计可以实现在线大口径流量计的检测及校准，并介绍了检测步骤和检测时需要满足的条件。
This article points out that using the portable ultrasonic flowmeter can realize the large-caliber flowmeters on-line testing and calibration.
论文根据时差法超声波流量计的测量原理，设计了一款超声波流量计专用芯片。
In the thesis, an ASIC for ultrasonic flowmeter is designed based on the principle of time difference.
介绍了管外夹装式超声波流量计的基本原理、类型及其最新进展；
Principles, types and latest development jacketed ultrasonic flowmeter are also introduced.
超声波流量计在大管径天然气计量中具有突出的优点。
There is obvious advantage of the ultrasonic flow meter for the metering on the large diameter gas pipeline.
通过研究大量的资料，提出了以DSP为核心的时差法超声波流量计测控模块。
By researching on plenty of data, we put forward a DSP-core ultrasonic flowmeter's measurement and control module with Time-difference method.
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。
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.
该方法已应用在超声波流量计中，收到了很好的效果。
The method in this paper is used by the ultrasonic flowmeter and a very good effect has been obtained.
提供了一种通过利用超声波多普勒频移来测量流体(10)的流速的多普勒型超声波流量计(1)。
There is provided a Doppler type ultrasonic flowmeter (1) for measuring a flow rate of a fluid (10) by using an ultrasonic Doppler shift.
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。
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.
便携式超声波流量计的超微粒子- 20，人类工程学的先进设计，以便在超微粒流行基于同样- 10，具有重大的规模缩小。
The Portable Ultrasonic Flowmeter UFP-20, based on the same, ergonomically advanced design so popular in the UFP-10, features significant size reduction.
介绍超声波流量计与物位计的声学原理。
The acoustic principle of detecting flowrate and the level of material by ultrasonic is introduced.
介绍超声波流量计与物位计的声学原理。
The acoustic principle of detecting flowrate and the level of material by ultrasonic is introduced.
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