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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
本文阐述了超声波流量计常用的时差法、多普勒法的测流原理，以及超声波流量计的分类。
This paper explained the commonly used principle of ultrasonic flow meter: time-difference method and Doppler method and introduced the classification of the ultrasonic flow meter.
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.
本公司主要经营工艺品、电子系统集成定制、机械部件制造、商务咨询、超声波流量计代理等。
We focus on handicraft, electronic system integration customization, mechanical component OEM, business consulting, ultrasonic flu.
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.
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.
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.
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.
当采用某种固定的安装方式时，通过调整超声波流量计的安装角度可以在最大程度上降低因为流场扰动产生的误差。
When uses the way of some kind of fixed installs, it would be possible in the greatest to reduce the error that produces from the perturbation of flow field through the adjustment the angle.
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.
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.
如果要进一步提高超声波流量计的测量精度，必须对流场流动特性进行深入细致的研究，这样才能从根本上解决问题，以便更充分地发挥一次仪表的性能改善潜力。
We must careful research on the flow field If we want to further enhance the measuring accuracy, then can fundamentally solve the problem, moreover to fully improvement the performance potential.
如果要进一步提高超声波流量计的测量精度，必须对流场流动特性进行深入细致的研究，这样才能从根本上解决问题，以便更充分地发挥一次仪表的性能改善潜力。
We must careful research on the flow field If we want to further enhance the measuring accuracy, then can fundamentally solve the problem, moreover to fully improvement the performance potential.
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