漏率測量 的英文怎麼說
中文拼音 [lóulǜcèliáng]
漏率測量
英文
testing method of cryo-insulation pressure vessels leakage measurement- 漏 : Ⅰ動詞1 (從孔或縫中滴下、透出或掉出) leak; drip 2 (泄漏) divulge; disclose; leak 3 (遺漏) le...
- 率 : 率名詞(比值) rate; ratio; proportion
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
-
Testing method of cryo - insulation pressure vessels leak and outgassing rate measurement
低溫絕熱壓力容器試驗方法漏放氣速率測量Based on the analysis of the effect on the maximum range of the equation ' s each parameter and the traditional method of extinction ratio, the noncooperative regulable attenuation - measure the minimum detectable power of laser altimeter on the condition of constant miss probability by attenuating the laser power transmitting to the diffuse reflected simulant target - was put forward
在傳統的消光系數法基礎上,根據對月測距方程各系數的影響權重分析,提出了非合作目標可調衰減法,即:通過對漫反射模擬目標,衰減出射激光功率,在一定的漏警概率條件下測量激光高度計的最小可探測功率。The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail
首先,在闡述i / q正交調制基本原理的基礎上,通過對誤差矢量和鄰近通道功率泄漏的詳細分析,定性、定量地討論了各種非理想電路因素(如相位不平衡、幅度不平衡、直流偏差等)對調制器性能的影響;其次,介紹了鎖相環的工作原理和基本組成部分,包括鎖相環的設計和環路濾波器的設計,特別詳述了電荷泵鎖相頻率源;第三,介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後,對整個直接射頻調制系統進行測試,結果基本上達到了課題要求。Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical
通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出:弧根周圍空氣的熱電離導致了電弧的發展,靜電場力對電弧的發展起到了加速作用,電擊穿僅發生在閃絡最終的跳躍階段;通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數,得到了不同階段電弧(電弧起弧階段、電弧發展階段及完全閃絡)的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。Under this program, a community area is divided into independent blocks and each block is installed with flow meters to measure the water revenue rate. then improvement measures, such as examination, repair, pipe replacement and gauging are followed
其主要作法是將社區以街廓畫分成獨立區塊,再裝表計量以核算該區塊售水率,繼而實施檢測修漏抽換管線換表等改善措施。Standard test method for volumetric flow rate of metal powders using arnold meter and hall funnel
用阿諾德測量計和霍爾漏斗測定金屬粉末體流率的標準試驗方法Based on many references form civil and abroad, the author mainly studies the measurment theory and method for flux, raising height, axial power and rotational velocity. avoiding many complicated and intermediate courses for power wastage analysis, introduces the electric measurement and using efficiency curve of motor in measureing axial power, and satisfies the automatization of the device. the paper also provides a new method, inductive winding, in measuring rotational velocity of electromotor, supplys limitations of other method in measuring rotational velocity of electromotor in water, and meet practical needs in developing diving electric pump for corporation
作者在參閱大量國內外有關文獻,著重探討了水泵流量、揚程、軸功率、轉速的測試原理和測試方法,提出了採用電測法並結合電機效率特性曲線測量水泵軸功率,從而避免了損耗分析法中大量復雜的中間過程,滿足了試驗裝置的自動化測量要求;採用漏磁感應線圈法測量電機轉速,彌補了其它轉速測量方法對水下電機測試的局限性,適應了萊恩公司開發潛水電泵的實際需要。The system whose distance precision is within ? 00m is adapt to crude oil gathering and transferring pipelines and long distance pipelines without missing alarm and has low rate of wrong alarm. it detects the real time situation of pipeline " s running. when the system meets the si tuat ion in which the amount of leak is beyond the 1 percent of total pipeline run, it will send out alarm in a instant, give the point of leak and evaluate the extent of leak
該系統適用於原油集輸管線及原油長輸管線,無漏報,誤報率低,定位精度達到了200米,實時監測原油管道的運行狀態,遇有大於管道輸送量的1泄漏時,能夠在短時間內聲光報警,給出泄漏位置及估計泄漏程度。In order to resolve the problem of low accuracy, computing overhead and the high false negative probability that the current detection technology suffered, the protocol misuage detection becomes one of the research fields in the development of network intrusion detection
針對基於模式匹配方法的誤用檢測技術存在的檢測率低、計算量大和高漏報率等問題,使用協議分析方法實現異常檢測技術成了網路入侵檢測的重要研究方向。Abstract : the causes for low efficiency of the heater in no. 2 crude unit of jpc refinery are described and analyzed including water leaking of steam soot blower, dew point corrosion caused by steam, soot deposits in convection chamber owning to poor soot blowing, high flue gas temperature, no heat recovery of flue gas, and poor performance of insulation lining, etc. by using sonic soot removing system, flue gas recovery system, spray coating of fiber and rock wool, as well as adjustment of flow scheme accordingly in the technical revamping. the dew point corrosion is completely eliminated, the insulation performance is improved, the heat loss is reduced by 1. 25 %, the flue gas temperature is reduced to about 170, and the heater efficiency is increased from 83 % to more than 90 %
文摘:分析了金陵石油化工公司煉油廠二套常減壓裝置加熱爐存在的因蒸汽吹灰器漏水,蒸汽引起露點腐蝕及吹灰效果差造成對流室積灰,排煙溫度高,煙氣熱量未回收利用以及爐子保溫襯里效果差等問題,提出採用聲波除灰系統、煙氣回收系統、纖維噴塗和巖棉噴塗及相應的流程調整等改造措施.測定結果表明,本次技術改造解決了因蒸汽吹灰器漏水所造成的露點腐蝕問題,提高了保溫效果,減少散熱損失1 . 25 % ,排煙溫度降至170左右,裝置的爐效率由83 %左右提高到90 %以上The causes for low efficiency of the heater in no. 2 crude unit of jpc refinery are described and analyzed including water leaking of steam soot blower, dew point corrosion caused by steam, soot deposits in convection chamber owning to poor soot blowing, high flue gas temperature, no heat recovery of flue gas, and poor performance of insulation lining, etc. by using sonic soot removing system, flue gas recovery system, spray coating of fiber and rock wool, as well as adjustment of flow scheme accordingly in the technical revamping. the dew point corrosion is completely eliminated, the insulation performance is improved, the heat loss is reduced by 1. 25 %, the flue gas temperature is reduced to about 170, and the heater efficiency is increased from 83 % to more than 90 %
分析了金陵石油化工公司煉油廠二套常減壓裝置加熱爐存在的因蒸汽吹灰器漏水,蒸汽引起露點腐蝕及吹灰效果差造成對流室積灰,排煙溫度高,煙氣熱量未回收利用以及爐子保溫襯里效果差等問題,提出採用聲波除灰系統、煙氣回收系統、纖維噴塗和巖棉噴塗及相應的流程調整等改造措施.測定結果表明,本次技術改造解決了因蒸汽吹灰器漏水所造成的露點腐蝕問題,提高了保溫效果,減少散熱損失1 . 25 % ,排煙溫度降至170左右,裝置的爐效率由83 %左右提高到90 %以上So power systems harmonic analysis is a significant aspect of power systems research. power system harmonic analysis was realized usually with fast fourier transform ( fft ), but the method exits spectrum leakage, and can not analyse all harmonic parameters exactly, such as frequency, amplitude and phase, in particular has big phase error
電力系統諧波分析通常都是通過快速傅立葉變換( fft )實現的,但是這種方法存在柵欄效應和頻譜泄漏,使計算出的諧波參數即頻率、幅值和相位不準,尤其是相位誤差很大,無法滿足準確的諧波測量要求。Testing method of cryo - insulation pressure vessels leakage measurement
低溫絕熱壓力容器試驗方法漏率測量Finally, after the long - term ion migration test, we analyzed the relation between the current and accumulative charge with the test time, computed the ion mobility and migration distance, and analyzed the distribution variety of na + and k + in the test samples
對10支試品進行了長期離子遷移試驗,測量了泄漏電流曲線和累計電荷量隨時間變化曲線,計算了試品的離子遷移率和遷移距離,並對試品na ~ + 、 k ~ +的含量進行了化學分析。In order to realize the flaw identification of link - thread bolt, it establised the flawidentification method which depended on the local maxima abstracted from detecting signal. itsorted all flaws into three kinds, and assayed the characteristics of signal and expounded thecriterion for each kind of flaw
綜上所述,本文在研究場量測量和頻率掃描技術的基礎上,利用同一硬體系統實現了渦流檢測和交變漏磁檢測的缺陷識別和深度測量,同時也實現了螺紋緊固件的缺陷檢測。Measures for further developing concrete mix design were presented based on above work. for example, adopts pfca as an index in designing durability of concrete, uses mortar slump flow test to select cements and water - reducers and to measure saturation dosage of water - reducer in mortar and then determine optimum dosage of it in concrete, uses bar - slump test to determine stability and fluidity of fresh concrete, and consequently, the workability of high fluidity and high stability concrete such as pumped or self - compacting concrete can be designed by adopting proper cfvm determined in terms of rheological properties of designed mortar measured with cone - based rheometer
如採用粗集料破碎率作為耐久性設計的一個指標;採用砂漿坍落擴展度試驗選擇水泥和減水劑,確定砂漿中減水劑的飽和摻量,並通過上述數學模計算混凝土中減水劑的飽和摻量,以此為參照確定最佳摻量;採用障礙坍落度試驗確混凝土的穩定性和流動性,結合由漏斗式砂漿流變儀測定的砂漿流變性能確定合理的砂漿填充系數,從而實現對高流動性高穩定性要求的混凝土(如泵送和免振自密實等)的工作性設計。In order to solve problems existing in current measuring methods for radon exhalation rate ( such as the effect of unequilibrium radon and its progeny, humidity effect, leak and back - diffusion effect, etc. ), based on the principle of surveying radon and its progeny in the medium surface, a rapid arid accurate method for measuring radon exhalation rate taking advantage of the rad7 radon detector was established
摘要本文根據介質表面氡析出率的測量原理,針對目前國內外現有的氡析出率測量方法中存在的一些問題,如對氡及其子體的不平衡影響、濕度效應及泄漏和反擴散等影響未作修正等,實驗研究了一種用rad7型氡氣檢測儀快速測定土壤、巖石、建材和尾礦等介質表面氡析出率的方法。Limiting enclosures. method of control of the leak rate per hour. enclosures of classes 1 and 2. method of measurement of the increase of the oxygen titre in volume
安全殼.時泄漏率檢驗方法.級和級安全殼.提高氧容積濃度的測量方法In the past, this is often done artificially or by the small scale measure - classification system improved slightly, which are of low efficiency, many measure missed, and low precision. hence, it ca n ' t satisfy with the measure and classification of large quantities of li - ion. thus it will affect li - ion battery normal sale and safe usage
以前人們常採用人工檢測,手工分選,和稍加改進小型檢選系統,有效率低、漏檢多、精確度低等缺點,因此無法滿足大批量鋰離子電池的檢選,從而會影響鋰離子電池的正常銷售以及安全可靠的使用。The study instructs simulating valve leakage experiment, perfects valves leakage test technology and bases theoretically for applying valve leakage test in practice. the test stand is constructed and instrumented to accept a variety of valves in order to determine which characteristics of acoustic emission change with leakage rate. the data for each valve type is generated by varying valve type and working medium
建立模擬在用承壓閥門內漏實驗臺,研究典型閥門內漏聲源的聲學特性,確定聲發射特徵參量與泄漏率的關系,為定量評價閥門泄漏率提供實驗數據;通過對不同類型、不同規格、不同工作介質下的典型承壓閥門內漏的實驗研究,確定閥門內漏最佳檢測區域,建立在用承壓閥門內漏聲學檢測方法。分享友人