寬量程的 的英文怎麼說
中文拼音 [kuānliángchéngde]
寬量程的
英文
wide planting-
Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results
這種方法的積分方程的積分核里含有復雜的微積分運算,為了簡化計算,本文在推廣的海倫積分方程的基礎上,對方程進行了簡化,推導了nakano方程,並以平面阿基米德螺旋天線,平面等角螺旋天線,軸向模圓柱螺旋天線,具有固定升角的圓錐螺旋天線和圓錐等角螺旋天線為例,用矩量法求解了天線上的電流分佈,研究了螺旋天線輻射的寬頻帶特性,所得的結果均與參考文獻吻合很好。This product is a type of professional handset infrared rays used thermometer, not need to touch with testing object, with facility - using, stability - design, exactitude - measurement, wide - measuring range. it has laser ranging, apheliotropic display, automatic numerical reading lock - in and automatic tailoff
手持式紅外線本產品是一種專業型的手持式非接觸紅外線測溫儀,使用簡易,設計堅實,測量準確度高,測溫量程范圍寬等特點。The author has finished the following several jobs in core of the centre : 1 ) the active compensation method based on bang - bang control was put forward to realize the wide range current transformer. the method converts the complex statement space to i / o description by the two - stage current transformer. with the compensation method, the accuracy of 0. 2 grade current transformer can be improved to less than the 0. 1 grade standard at 100 % rating when the primary side current is changed from 2 % to 120 % of the rating
圍繞這一工作核心,作者完成了以下幾項工作: ( 1 )以實現寬量程電流互感器為目標,提出了基於bang - bang控制的有源補償方法,採用雙級電流互感器,將復雜的狀態控制分量轉化為偏差控制,該方法結構簡單,調試方便,有源補償器輸出電流小,可以將0 . 2級的電流互感器經過補償后提高到一次電流從額定值的2變化到120時,測量誤差不超過一次電流額定值100時準確度為0 . 1級的測量標準。In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data
本文根據漫灘水流的運動特點,將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區,並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點,提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上,對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析,提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式,得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解,並與實測資料吻合較好To avoid the serious electromagnetic interferer, the analog signals are transformed to frequency pulses which are transferred to the kernel of the system. in the measure of the groove voltage, the method of float - ground is adopted to avoid the high common signal and the range switch circuit is designed to solve the conflict of the wide dynamic range and the high precision. least square curvefit is adopted to reduce the system error
鋁電解生產現場電磁干擾非常嚴重,為此我們將需要測量的模擬信號就近轉換為頻率脈沖后再傳送到控制核心;採用浮地接入方式消除槽電壓信號中的共模成分;設計了量程自動切換電路以解決槽電壓的動態范圍寬和測量精度高的矛盾;用最小二乘法進行曲線擬和以降低測量的系統誤差。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同,敏感元件採用高度對稱的四梁結構,其中每個軸向上均採用帶折疊梁的雙側叉指電容結構,採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件,具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算,並利用有限元法進行了模擬分析,根據模擬結果得出了優化參數;在確定敏感結構的基礎上,研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v介面電路進行相位調制處理,然後通過解調輸出與加速度成正比的電壓信號。In the section of fabricating technology, i first discuss the ion beam technology. through the analysis of the effects of each parameter on the surface smoothness, profile fidelity and linewidth resolution in the process of ion etching, the suitable angle of incident ion beam, ion energy, density of ion beam and time of etching are selected combining the actual status of the mask
在製作工藝的研究方面,首先研究了離子束刻蝕技術,通過對離子束刻蝕過程中各個參數對刻蝕元件的表面光潔度、輪廓保真度和線寬分辨的影響分析,結合掩膜的實際情況選擇出了合適的離子束入射角、離子能量、束流密度和刻蝕時間等參數。The purpose is that the current transformer often working in wide range current could always get the output current with less error, what means that the ct is in steady low error grade
為了使經常工作于寬量程電流的電流互感器始終獲得較小誤差的輸出電流,也就是讓它具有穩定的低誤差等級。This text is by way of would rather analyses the yellow river hydrology silt characteristic, river course property of ningmeng as well as after the long liu reservoir application to the influence of meng heduan, the importance would rather to have expounded that train in the ning meng river course. by way of analysing the present situation of the ningmeng course river course management and father, and puts forward the major problem that exists, and carries on corresponding countermeasure research be dead against these problems. according to property and the engineering present situation of river course, engineering experience and the correlation theory are used, to renovates the principle and renovates the scheme and the measure has carried on the analysis research of overall system
通過分析寧蒙河段河道整治及河道管理的現狀,提出存在的主要問題,並針對這些問題進行相應的對策研究。根據河道的特性和工程現狀,運用工程經驗及相關理論,對整治原則、整治方案和措施進行了全面系統的分析研究;對整治流量、整治河寬和整治半徑進行了分析和計算;對河道整治工程的幾種結構形式進行了分析和評價;提出了具體的整治措施及工程整體布局;對黃河上的幾種新型結構形式進行了特性分析以及功效評價;最後對寧蒙河段今後治理和研究提出了若干建議,並對前景進行了展望。This paper introduces the development of fiber - optic mach - zehnder interferometer during measuring linewidth parameter of single - frequency lasers, and the experiment result has been given
摘要介紹了作者在測量單縱模激光器線寬參數的過程中,研製的馬赫曾德爾光纖干涉儀,並給出了實驗結果。This paper expatiated that the mathematics models of ac motor is higher order, non - linear and closed coupling, multivariable input - output system. and introduces the principle and the algorithm of sine pulse width modulation ( spwm ), opened - loop space voltage pulse width modulation control ( svpwm ) and field oriented control ( foc ). finally, realized the control strategies of variable - frequency speed regulating using assembly and c language
文中闡述了交流異步電機的數學模型是高階、非線性、強耦合的多變量輸入輸出系統,介紹了交流電機的正弦脈寬調制、開環電壓空間矢量的u / f控制和磁場定向控制的原理及控制演算法,並利用dsp構成控制系統,通過匯編語言和16位定點c語言混合編程的方法實現了上述的變頻調速控制策略。Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered
在此基礎上,給出了一整套bbo - opo激光參數設計方案:計算了不同泵浦強度下的參量放大倍數;詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線,以及非共線類相位匹配調諧曲線;分析了走離角對非線性系數和群速匹配的影響;計算了參量過程的允許角;計算了bbo - opo的理論閾值條件;分析了飽和與泵浦光束的消耗過程;給出了轉換效率與超過泵浦閾值的倍數的關系;討論了轉換效率與輸出鏡反射率的關系;討論了線寬控制的各種方法;研究了利用非穩腔改善光束質量的方法;考慮了bbo晶體的設計。The system uses hpc as a detector, based on the computer and network technology, reaches the design requirements of high - sensitivity, wider range, full automation and no - man on duty
該系統採用高壓電離室為探測器,利用計算機及網路技術,基本達到了靈敏度高、量程寬、全自動無人值守的設計要求。The qinshan power station environment supervisor system for the nuclear radiation dosage is an intelligent continual online supervisor system. it is equipped with high alert automated device with rs131, which makes it getting stronger functions and higher abilities
秦山核電站環境輻射監測系統是一個全自動智能化連續在線輻射監測系統,它配備了高靈敏度、寬量程的輻射探測儀和自動采樣設備,該系統功能強,可靠性高。Depend on the precise blast design with small error and strictly controlling the explosive consumption, they controll blasting construction for rock availably, complete the excavation for rock cuttings of broaden and rebuilding project for city roads successfully, and obtain well social benefit and economical benefit
通過續密的微差爆破設計,嚴格控制裝藥量,有效地控制了巖石爆破施工,成功地完成了城市道路拓寬工程的巖石路塹邊坡開挖工程。The design of this phase transformer can turn the error into the phase transform capacity. this compensation device is fit for measure in wide range
這種移相器的設計可以很好的將誤差轉化為相移量。該補償裝置適用於寬量程的測量。The practice indicates that if the change of the slope in length and breadth of road surface is under 0. 5 %, the problems above can be avoided, and this can be taken as the control criterion of discrepancy settlement of road widening engineering
實踐表明,當路堤縱橫坡的改變量小於0 . 5時,能有效的避免上述問題的產生,並以此作為拼接拓寬工程的差異沉降控制標準。Vhl serial current transformer is one of the new generation micro - precision current transformer which is designed for the wide current range watt - hour meters
Vhl系列互感器是為寬量程電子式電能表設計的新一代微型精密電流互感器。An introduction on development and application of high strength, wide measure range gross logging instrument is presented
摘要介紹了高強度、寬量程總量測井儀器的研製及應用。In some place of electric system, the load change wide range and the existing current transformers ca n ' t meet the measure request. on the base of consulting a great amount of materials, a deep research on wide range current transformer by active compensation was done in this paper
本文對電流互感器進行了深入研究,查閱了大量相關資料,針對目前電力系統中某些負荷點變化范圍較大,現有互感器不能滿足計量要求的情況,進行寬量程電流互感器有源補償方法的研究。分享友人