相干電磁能 的英文怎麼說
中文拼音 [xiānggāndiàncínéng]
相干電磁能
英文
coherent electromagnetic energy- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 干 : 干Ⅰ名詞1 (事物的主體或 重要部分) trunk; main part 2 (幹部的簡稱) short for cadre Ⅱ動詞1 (做...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 磁 : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
- 能 : 能名詞(姓氏) a surname
- 相干 : 1 (多用於否定句或疑問句) have to do with; be concerned with 2 [物理學] coherent; 相干散射 coher...
- 電磁 : [電學] [物理學] electromagnetism電磁安(培) abampere (電磁系電流單位); 電磁泵 electromagnetic ...
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Some studies on control modes of the system, especially on a dc, pm, brushless and sensor - less motor driven systems. a method of rotor position identification without sensors has been developed. using a microchip to increate system efficiency, anti - disturbing ability and reliability of pwm modulation
研究了適于直流、無刷、永磁、無位置傳感器電機轉子位置的檢測方法;採用單片機實現了該種電機的運行控制,提高了系統在pwm調制時位置檢測換相控制過程的抗干擾能力。Some features of this chip are listed below : firstly, it opts for ir data transmit technology, so it have the advantages of little emi, simple operation, low cost, etc. secondly, the synchrony method makes it have good noise suppression and ber quality
該「紅外名片交換專用晶元」能獨立完成名片交換和管理的任務,具有顯著優點: 1採用紅外數據通信的方式,具有技術方案成熟,交換方法簡單,保密性好,相互電磁干擾小,成本低、簡單易用等優點。Thirdly, the paper discusses the driver of the peripheral equipment, how to port the uc / os - n and uclinux, h. 323 protocol and the application of the system in the digital speech classroom. also some software and hardware measure are adopted to enhance the system stability. at last, the shortcoming and the something to be improved are given. dsp can be used to realize real - time speech coding algorithm, and after porting ( ac / os - n, arm can manage the keyboard, the lcd and the ethernet peripheral etc. then the embedded network system with specific purpose can be used in others fields, such as pda, set of top, web tv, ect
在實際設計實現中,為提高系統軟、硬體整體穩定性和可靠性,使用了以下幾種方法: ( 1 )低電壓復位、抗電源抖動能力、增加時鐘監測電路、抗電磁干擾能力、散熱等技術; ( 2 )多層pcb設計,線路板結構緊湊,電源部分採用數字5v 、 3 . 3v 、 3v 、 1 . 8v和模擬5v多電源供電; ( 3 )選用表面貼和bga封裝的器件; ( 4 )按照軟體工程的要求進行系統分析,規劃系統框圖、流程分析、模塊劃分,減小了不同模塊的相關性,從而最大限度避免了錯誤的發生。A very important one is the intersystem prediction and analysis of electromagnetic compatibility to the radio systems in this electromagnetic environment. this paper presents research on the intersystem prediction and analysis of electromagnetic compatibility to the radio systems positioned by the geographical longitude and latitude coordinate system and the elevation system. it can give assistant solution to the interference among the radio systems so as to avoid functional degradation and even failure after the systems disposed and mounted and the money and time wasting
本文對處于陸上局部區域內的、以經緯度地理坐標系和高程系進行定位的無線電系統間的電磁兼容性預測進行了研究,以對系統間的相互干擾情況作出預測,給解決局部區域中無線電系統間相互干擾問題的方案提供支持,以避免在系統布置、安裝完成之後出現相互干擾情況而使系統性能下降,甚至失效,造成資金和時間的浪費。The criteria for site selection were very strict. because of the sensor s high sensitivity, there should not be electromagnetic interference and building obstructions around the site. there is also the need for appropriate communication lines at the site
閃電監測站之選址要求嚴格:由於探測儀器非常靈敏,附近不能有電磁噪音干擾,四周必須極少阻擋,並且要有相應的通信線路配合等。It is found that the fwm field can cause the asymmetry of electromagnetically induce transparency profile. in addition, the effect of different propagating orientations of probe field on the electromagnetically induced transparency is also discussed. in the molecular multi - level system with the perturbed superposition levels, we discuss the electromagnetically induced transparency, spontaneous emission enhancement, double dark resonance and double electromagnetically induced transparency by using the density matrix equation under weisskopf - winger approximation and dressed - state density matrix equation
針對實際的實驗條件,考慮了一種影響量子干涉的新的因素-四波混頻場,研究了四波混頻場對雙光子探測的-型能級體系的eit的影響,發現四波混頻場能夠導致雙光子探測的eit線型的不對稱,在此基礎上,討論了不同探測場的傳播方式對eit的影響,針對分子中實際存在的包含有微擾能級的不同多能級系統,我們分別採用綴飾態繪景下的密度矩陣方程和weisskopf - wigner近似下的密度矩陣方程詳細地討論了電磁感應透明、自發輻射的干涉相消和相長、雙暗態共振和雙電磁感應透明現象。Ddsy951 electronic single - phase advace - payment electric energy meter following as meter with a shielded and sealed construction, adops microelectromic technoligy to measure electricity and comes up to standard of gb t17215 - 1998 and gb t18460 - 2001. it collects handles and stores dataset with advanced monolithic processing system. the meter features in good abti - electromagnetism, low power loss, high precision, abstraction - of - electricity prevention, high overload and long service life
Dtsy951電子式三相預付費液晶電能表下稱電表採用微電子技術計量電能,符合gb t17215 - 1998和gb t18460 - 2001標準的電表,採用全屏蔽全封閉結構,用先進的單片機處理系統進行數據的採集處理和保存,具有良好的抗電磁干擾低自耗節電高精度不需校表防竊表高過載長壽命的特點。Compared with three - level atomic system, the atomic coherence effects in four - level can lead to eit and eia, which depend on the intensity of control light and the relaxation of the fourth level
與三能級原子系統相比,四能級原子相干效應即可導致電磁感應透明的產生,也可產生電磁感應吸收現象,取決于控制光的強度和第四個能級衰變率的大小。Wire antennas are still very popular on vehicles, ships and aircrafts. they are easily to be interference sources and sensitive bodies. in our calculation we must take account of the mutual coupling between wire antennas when they are very close
線天線在移動通信系統中被廣泛地應用,它作為許多機載、艦載、衛星、通信電子設備中電磁能量的發射和接收埠,最有可能成為輻射干擾的干擾源和敏感體,特別是當天線靠得很近的時候,必須考慮相互之間的互耦。Compared with other methods, it is better used in the electrical station as it has some other feature such as simple structure, high anti - interference ability and reliable performance
與目前存在的其它方法相比,具有結構簡單、性能可靠的特點,更加適用於在電磁場干擾很強的變電站內使用。Due to restriction with the array aperture transition time, traditional phased array radar works under relative narrow signal bandwidth, so this restricts the application of phased array radar in the field where high performance is demanded. however, optically controlled phased array radar ( ocpar ) adopts the photoelectron technology, counteracts the aperture transition time via the method of optical true time delay ( ottd ), so it can realize wide instantaneous bandwidth and squint - free operation ; meanwhile, it can realize the miniaturization of phased array radar and has super anti - electromagnetism interference capability
而光控相控陣雷達採用光電子技術,通過光實時延遲的方法來抵消孔徑渡越時間,可以實現相控陣雷達的寬帶寬角掃描;同時也可以使得相控陣雷達小型化,並具有強的抗電磁干擾的能力;另外,由於光纖傳輸具有損耗低、頻帶寬等固有優點,採用光纖連接雷達天線和雷達控制中心,可以使兩者的距離較採用同軸電纜有較大的提高,更有利於保護雷達控制中心。Efforts are concentrated on how to improve the performances of the synchronous and velocity sensor of high speed rotating mirror camera, creative ideas in this paper are displayed as follows. ( 1 ) high speed rotating mirror camera signal is processed by means of opto - electronic system. the advantages of the opto - electronic system, such as good emi resistance and fast processing ability, are employed to optimize the design
本文的工作就是圍繞如何提高高速轉鏡相機同步與轉速傳感器的性能開展的,主要工作內容和創新點如下: ( 1 )利用光電系統對高速轉鏡相機同步與速度傳感信號進行處理本文利用光電傳感系統的抗電磁干擾及可高速處理的特性,把高速旋轉狀態下反射鏡的時間參量轉換為光信號,再經過光探測器轉換為電信號。Problem relating to design of high speed board and electro - magnetic compatibility ( emc ) in this module is analyzed also. hardware performance and the ability of anti - interference are improved effectively to satisfy with the requirements of awg
同時,本文對高速電路板設計和電磁兼容性作了一定分析,並針對波形發生器的要求,採取了相應的措施和技術,有效地提高了硬體性能和抗干擾能力。Compared with traditional sensors, the saw sensors can be used for wireless passive sensing with no need for a separate power supply, which makes it possible to measure parameters of fast moving or rotating objects. in addition, wireless passive sensing in extreme environment likes strong electromagnetic interference and low temperature becomes obtainable
與傳統傳感器相比,其最大優勢在於它能實現無源無線遙測,這使得它能運用在諸如快速移動物體、旋轉體等無接觸測量中,並且在強電磁干擾、低溫等極端工作條件下也能正常工作。Abstract : one of the unsolved problems of the high power application of high temperature superconductors is how to lower the energy dissipation induced by flux motion. due to the extremely high anisotropy, small coherence length and weak pinning potential, the mixed state phase diagram which is tightly related to the flux dynamics becomes very complicated. a brief account is given of the field induced crossover of criticalities of energy dissipation, which has been observed in our recent sensitive electromagnetic measurement
文摘:高溫超導體在強電方面應用的關鍵問題是如何克服磁通運動所造成的能量損耗.由於存在極強的各向異性、短的相干長度和小的磁通釘扎勢,因此與磁通運動緊密相關的混合態相圖變得很復雜.文章綜述了根據一系列靈敏的電磁測量所觀察到的磁場誘導的能量耗散行為的轉變Optical fiber process tomography ( ofpt ) is a new technology in the field of optical fiber sensor ( ofs ). the probe of ofpt is small, safe, free of electromagnetic interference and has high sensitivity in low - density medium case same as ofs, more important and different is that it can detect the medium distribution and contents of the cross - section to be investigated simultaneously, which makes ofpt show potential and extensive applications in petroleum, chemical, energy, medicine, food and sanitation fields to control product quality, realize safe production and reduce the cost
光纖過程層析成像是光纖傳感領域的一門新型技術,具有光纖傳感器的測量低濃度物質解析度高、體積小、抗電磁干擾以及可以進行分散式測量的共同優點和可以同時測量物質截面內部結構的獨特優點,在多相流動廣泛存在的石油、化工、能源等工業部門和醫療、衛生、食品等領域具有廣泛的應用前景,對監控產品質量、降低成本以及保證生產安全具有非常重要的意義。On the other hand, fiber transmission remedy the lacks of cable transmission. fiber system can resist electromagnetism interference but light module is easier to be affected by temperature
與之相對應,如果採用光纖傳輸波控信號,就很好的彌補了電纜傳輸的不足,系統抗電磁干擾的能力大大提高。A device which transmits an extremely narrow and coherent beam of electromagnetic energy in the visible light spectrum
一種能夠發射可見光譜電磁能的極細的相干光束的裝置。In order to make the converter operate normally without the interference by emf, the cable connecting the converter to a 3 - phase motor must have high resistance to emf interference, low effective capacitance and low transmission impedance
為保持變頻率器正常工作不受電磁干擾,因此連接變頻器與三相交流電機之間的電纜就要求具有抗干擾性能、較低的有效電容及較低的傳輸阻抗。分享友人