渦街流量計 的英文怎麼說
中文拼音 [guōjiēliúliángjì]
渦街流量計
英文
vortex flowmeter- 渦 : 渦名詞1. (漩渦) eddy; whirlpool; vortex 2. (酒窩) dimple
- 街 : 名詞1. (街道; 街市) street 2. [方言] (集市) country fair; market
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 流量 : rate of flow; flow; runoff; discharge; throughput; (flow) rate; quantity (of flow); flux
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Ulp smart capacitance vortex flowmeter based on msp
430的超低功耗電容式渦街流量計Development of intelligent vortex street flowmeter based on hart protocol
協議的智能渦街流量計的開發In this work, a new dual triangulate bluff body vortex flowmeter was developed, the flux lower limit value of which lower by 50 % that of the old single bluff body vortex flowmeter. the linear correlation of the correlation between the velocity pressures of fluid disturbs wave and that of vortex precession in vortex precession flowmeter was brought to light, and a spectrum phase discrimination method based on fft to remove the effect of fluid pulsating interference on vortex precession flowmeter was advanced
研製出比傳統單鈍體渦街流量計流量下限降低約50的新型雙鈍體渦街流量計;揭示出脈動流中旋進旋渦流量計流體振動特性,並在此基礎上提出基於fft相位判別的數字信號處理方法來消除流場脈動對旋進旋渦流量計的干擾的方法。The study and practice of the turbine flowmeter of downhole
井下渦街流量計的研究與實踐In the second chapter, the fluid mechanics principle of vortex flowmeter at first was introduced. the classical theory about vortex flowmeter and the method of computational fluid dynamics about flow around body were expanded on, and the model of the single bluff body and the dual bluff body vortex flowmeter were constructed. and then, fvm - finite volume method - analysis software fluent was applied to analyze the flow phenomenon of flow over single bluff body or dual bluff body
然後通過大量實驗和理論分析給出雙鈍體渦街流量計的設計準則:當管徑為d ,鈍體形狀為三角形,則鈍體設計參數為:銳邊寬度= 0 . 26d ,高度= 0 . 34d ,鈍體之間的距離= 1 . 2d (即當兩鈍體寬度相等且鈍體距離等於單鈍體兩列旋渦之間的距離) 。The intelligence vortex flowmeter system is consisted of vortex sensor, temperature sensor, pressure sensor, lcd module and master controller, etc. the master controller uses a single - chip computer to collect, analyze, compute and compensate the signals of all sensors, and gets the needed data, then displays all data via the lcd
智能渦街流量計系統由渦街傳感器、溫度傳感器、壓力傳感器、液晶顯示模塊、主控制器等幾個部分組成。主控制器使用單片機對各個傳感器的信號進行採集、分析、計算,並進行補償,得到所需數據,再將各種數據送到液晶顯示器顯示。Measurement and control system of intelligent vortex flowmeter
智能渦街流量計測量控制系統( 3 ) flow measurement system based on vortex flowmeter
( 3 )基於渦街流量計的流量測量系統。And then technology of human and machine interface is described in detail
並對渦街流量計的人機介面技術做了詳細的闡述。Current status of study on signal processing method and system for vortex flowmeter
渦街流量計信號處理方法與系統的研究現狀Vortex - shedding flowmeter
渦街流量計Abstract : the measuring principle and application of vortex flowmeter are introduced
文摘:介紹渦街流量計的測量原理及應用。At the base on this, the hardware circuit of data acquisition and compensation of temperature and pressure
在此基礎上完成了渦街流量計的數據採集通道和溫壓補償電路的硬體設計。Because vortex flowmeter has no movable mechanical parts, the output signal of it is a frequency signal that is proportional to flow signal, and it has less pressure loss, wider measurement range, it is used widely
由於渦街流量計具有無機械可動部件,可得到與流量成正比的頻率輸出信號,壓力損失較小和量程比較寬等優點,因而應用相當廣泛。In the third chapter, the method and choosing principle of the test system component at first were brought out. the component of test device was introduced. and then, the characteristics, such as strouhal number, vortex street strength, vortex street stability and pressure drop coeffi
縱觀全文,本文成功地將cfd技術和實驗流體力學方法應用於新型雙鈍體渦街流量計的研究,並對旋進旋渦流量計的流體振動特性和抗干擾方法進行系統研究,提出了旋進旋渦流量計抗干擾設計的新方法。By analyzing result of simulation, the intensity amplification effect of velocity pressure, which is induced by flow over dual bluff body, and the measurement accuracy of the dual bluff body flowmeter were projected
按照該參數設計出的樣機,其測量精度1 ,重復度0 . 3 ,流量下限與單鈍體渦街流量計相比下降約50 。There are two kinds of vortex type oscillatory flowmeter : vortex flowmeter and vortex precession flowmeter
基於旋渦流體振蕩原理的流量計主要有兩種:渦街流量計和旋進旋渦流量計。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. the methods that restrict measurement range or do n ' t measure small flow have to be adopted
目前渦街流量計所採用的放大、濾波、整形、計數的處理方式,在從噪聲中提取流量信號方面存在較大的局限性,只能採用限制量程比、不測小流量等方法來抑制噪聲。With the rapid development of network communication and micro - electronic technology and vortex shedding flow meter widely used in the flux control system, the paper has an advanced research on low power consumption vortex shedding flow meter based on network communication
論文根據當前網路通信技術和微電子技術迅猛發展,以及渦街流量計在流量測量系統中廣闊的應用前景提出了基於網路通信的低功耗渦街流量計。The methods and developing status of flow measurement and physical parameter of fluid, the principle of vortex flowmeter, the theory of ar model spectrum estimation are described at the beginning of the thesis. the author develops a flow measurement system comprising the signal processing circuit and measurement software to measure flow and do qualitative and quantitative to measurement results that gain by count method and ar model spectrum estimation method
論文依次講述了流量的測量方法和發展趨勢,流體的物理參數,渦街流量計的測量原理, ar模型譜估計的基礎理論,並針對渦街流量計設計了信號處理電路和測量軟體,最後對用計數方法和ar模型譜估計方法得出的測量結果進行了定性和定量分析。分享友人