A pulse output model digital vortex flowmeter is developed successfully.
成功实现了一台脉冲输出型数字涡街流量计。
Vortex flowmeter is one of the most widely used flow measurement devices.
涡街流量计是最为常用的流量测量装置之一。
The measuring principle and application of vortex flowmeter are introduced.
介绍涡街流量计的测量原理及应用。
Abstract: The measuring principle and application of vortex flowmeter are introduced.
文摘：介绍涡街流量计的测量原理及应用。
Experiments were carried out to the research on mass flow rate measurement using vortex flowmeter.
对利用差压原理进行质量流量测量的方法进行实验研究。
Vortex Flowmeter is one of the most important implements of flow measuring in modern chemical industry.
涡街流量计是现代化工生产中测量流量的重要工具之一。
There are two kinds of vortex type oscillatory flowmeter: vortex flowmeter and vortex precession flowmeter.
基于旋涡流体振荡原理的流量计主要有两种：涡街流量计和旋进旋涡流量计。
The processing circuits in the vortex flowmeter are unable to ensure the measuring accuracy in the industrial fields.
涡街流量计中的处理电路不能保证仪表在工业现场的测量精度。
The intelligent Vortex Flowmeter introduced in this paper expands the low limitation through hardware combining with software.
本文中设计的智能涡街流量计采用硬件和软件相结合的方案来扩大仪表量程下限。
On the basis of traditional vortex flowmeter, a multi-variable vortex flowmeter based on HART communication protocol is designed.
在传统涡街流量计的基础上，设计出带有HART通讯协议的多变量涡街流量计。
The measuring principle of Vortex flowmeter is introduced and the causes are analyzed, which could affect the precision of flow measuring.
另外还简述了涡街流量计的测量原理，分析了影响涡街流量计测量精度的因素。
This paper discussed the design principle of detection circuits for explosion-proof vortex flowmeter and analyzed some specific circuits in detail.
本文论述了防爆型涡街流量计检测电路的设计原则，并对具体电路作了较详尽的剖析。
The intelligence vortex flowmeter system is consisted of vortex sensor, temperature sensor, pressure sensor, LCD module and master controller, etc.
智能涡街流量计系统由涡街传感器、温度传感器、压力传感器、液晶显示模块、主控制器等几个部分组成。
This paper, based on flow measuring, presented the selection, design and application of gas measuring by the Yokogawa vortex flowmeter made in Japan.
在介绍流量计量基础上，重点介绍由日本横河涡街流量计进行煤气计量的选型及应用。
Vortex flowmeter is a widely used hydro-vibration flowmeter. Its poor noise to signal ratio and anti-jamming ability, however, limit its application.
涡街流量计测量应用广泛，但小流量信噪比低、抗干扰性能差。
Through experiments, it is indicated that the measurement range is expanded within accuracy level by vortex flowmeter with nonlinear modified method.
实验表明，该方法在保证精度的前提下可以有效地扩展量程。
The dissertation is focusing on the detection of vortex frequency, which is the key technical problem of vortex flowmeter, a sort of promising and rapidly developing flowmeter.
本论文主要研究目前发展势头十分良好的涡街流量计中的关键技术问题——旋涡频率的检测。
At the same time, the experimental results show that the method of the isolate elasticity has little effect on the anti-jamming performance of the dual bluff body vortex flowmeter.
运用正交实验法研究了不同双钝体组合对斯特劳哈尔数影响，得出通过选择适当的钝体及钝体组合，通过试验可以设计出满足要求的涡街流量计的结论。
The assemble criterion of sensor for design was advanced. At last, a method of increasing signal-to-noise ratio and reducing flux lower limit value of vortex flowmeter was advanced.
椐此提出通过双钝体诱发卡门涡街增强涡街强度、提高涡街流量计的信噪比，进而降低涡街流量计的流量下限的方法。
The traditional signal processing methods that amplify, filter, rectify signal and count, which are used in vortex flowmeter now, has shortage in extracting real flow signal from noise.
目前涡街流量计所采用的放大、滤波、整形、计数的处理方式，在从噪声中提取流量信号方面存在较大的局限性，只能采用限制量程比、不测小流量等方法来抑制噪声。
The spectrum center correcting is applied to the digital signal processing system for vortex flowmeter, and the results show the measuring precision of flowmeter is improved by this method.
将频谱重心校正方法应用于涡街流量计数字信号处理系统，实验结果表明该方法提高了流量计的测量精度。
According to installation requirements of vortex flowmeter the preparation work is introduced as well as the matters needing attention in installation in order to provide reference for engineers.
结合涡街流量计安装的一般要求，就其安装前的准备工作进行了介绍，着重阐述了仪表安装中应注意的几个问题，以便更好地为安装涡街流量计提供一些帮。
Therefor, using the dual bluff body configuration and the differential sensing technique, a novel prototype of vortex flowmeter with excellent noise immunity and improved sensibility was developed.
采用双钝体组合结构和差动传感技术，能够研制出抗干扰性能良好和高灵敏度的新型涡街流量计。
A real time processing system based on a digital signal processor is described in this paper, and the signal frequency of vortex flowmeter is computed by means of an adaptive notch filtering method.
本文介绍了以数字信号处理器(dsp)为核心的实时处理系统，采用自适应陷波方法计算涡街流量计信号的频率。
The sixth chapter made an experiment study upon the fluid oscillation characteristics of vortex precession flowmeter.
论文第六章对旋进旋涡流量计的流体振动特性进行实验研究。
This article recommends the basic principle and test measure as well as the installation structure of vortex street flowmeter, solves the problems occurred on the jobsite application.
介绍涡街流量计的基本原理、检测方法及其安装结构，提出了现场使用中出现问题的解决方法。
Intelligent vortex street flowmeter is a new type of checking instrument on the basis of microprocessor.
智能型涡街流量计是以微处理器为基础的新型流量检测仪表。
The paper introduces a new kind of vortex gas mass flowmeter, which can measure gas mass flow by testing the vortex frequency and the horizontal varying lifting force.
介绍了一种利用检测漩涡频率和横向变动升力的方法测量气体质量流量的漩涡式气体质量流量计。
The paper introduces a new kind of vortex gas mass flowmeter, which can measure gas mass flow by testing the vortex frequency and the horizontal varying lifting force.
介绍了一种利用检测漩涡频率和横向变动升力的方法测量气体质量流量的漩涡式气体质量流量计。
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