磁場開關 的英文怎麼說
中文拼音 [cíchǎngkāiguān]
磁場開關
英文
magnetic field switch-
Finally, because high - speed power solenoid valve is one of the most important executive parts in the electronic control diesel engine and the performances of diesel engine are strongly related to the solenoid valve, the response performance of the solenoid valve is investigated. the response performance of the solenoid is influenced by many factors, such as driving voltage, electric driving unit etc. in order to have high excitation voltage and in low maintaining voltage, a high - low voltage electric driving unit is designed, and in order to make the solenoid valve close more rapidly, an active free - wheeling circuit and a bootstrapping circuit are designed in the electric driving unit, too. in the high - low electric driving unit, high voltage and low voltage are supplied by the dc - dc device and by the accumulator respectively
高速強力電磁閥的響應性能除了與閥本身的結構和材料有關外,與驅動電壓、驅動電路的設計密切相關,本文通過分析,首先開發出一種高低壓驅動電路,高壓電源是山升壓式dc - dc原理獲取的,低壓由蓄電池本身提供,實現高壓強激和低壓維持的功能,電路中採用有源續流電柴汕機中卜軌知介系統的設訓及其七川j敝略的叭究路進行續流,加誣了電磁閥的關閉速度;採用自舉吐路,降低了場效應管對驅動電壓的要求。Power mosfet is adopted to switch heavy current of magnet core in order to control rotating magnetic field effectively
為了使磁場得到有效控制,本文採用功率nosfet實現電磁線圈大電流的開關。Dry reed relays are also operated by energizing a coil, but in this type of relay, the coil is wound around the switch so that the induced magnetic field closes the switch
干簧繼電器也是靠激勵一個線圈進行工作的,但是在這種類型的繼電器中,線圈環繞著開關,從而感應的磁場使開關閉合。The product vacuum arcing chamber adopts porcelain case, cup shape and longitudinal magnetic field contactor structure, copper and chrome contactor material, it has the capacity of good open and close short circuit current
本產品真空滅弧室採用陶瓷外殼,杯狀縱磁場觸頭結構,銅鉻觸頭材料,具有優良的開斷和關合短路電流能力。To show the applicability of the proposed algorithm for engineering problems, the thesis computed the radiated electromagnetic field of a switched mode power supply, with special attention on the analysis of the emi in the electronic control circuit. different numerical results and two valuable guidelines are drawn
從而以實際高頻開關電源為工程背景,通過對高頻開關電源產生的輻射電磁場的分析,重點計算了該開關電源控制迴路處的主要電磁干擾,得出了相應的數值計算結果和可供實用參照的結論。The main products of our company : series of mining emulsion pump station, series of electric haulage shearer, sparying pump station, series of mining flame - proof vacuum / air electromagnetic starter, series of mining vacuum / air feeding switch, series of mining fame - proof and natural - safe. type ac soft starter, series of hydraulic stand valve and pipe system, high flow rate quick - moving valve, the new product nearing into market - the hydraulic support electric - control system, mining electric drill, hydraulic valve test table, electric performance test table
公司主導產品為:系列電牽引採煤機、系列礦用乳化液泵站、噴霧泵站、礦用隔爆兼本質安全型交流軟起動器、系列礦用隔爆真空、空氣電磁起動器、系列礦用真空、空氣饋電開關、系列液壓支架閥類及管路系統、大流量快速移架閥、即將投入市場的新產品? ?液壓支架電液控制系統、煤電鉆系列、液壓閥試驗臺、電性能試驗臺等。In 1990s, a calculation of the ground - state energy of an exciton confined in a cylindrical quantum wire in the presence of a uniform magnetic field is reported as a function of wire radius, using a variational approach by gang li, spiros v. branis and k. k. bajaj. a. balandin and s. bandyopadhya present variational calculations of the ground - state exciton binding energy and exciton radius in a quantum wire subjected to an external magnetic field. these studies have been primarily responsible for our current understanding of the nature of excitonic states in a quantum wire subjected to an external magnetic field
九十年代中期,人們就開始了關于在外加磁場時量子線中激子特性的研究, gangli , spirosv . branis和k . k . bajaj利用變分法,對于圓柱形的量子線中激子的基態束縛能進行了計算,發現對於一個給定的磁場值,激子的基態束縛能比不加磁場時變大。In order to find an explanation and to determine the possible mechanism of these biological effects, many in vitro and in vivo studies of emf effects have been published. these studies were involved in many enzymes ( such as odc, succinate dehydrogenase, pkc ), pro - oncogene ( c - myc, c - fos, etc. ), gap junction and protein synthesis, and so on
為了揭示工頻磁場生物效應的機制,尤其是與腫瘤發生發展的關系,人們開展了較為廣泛的體內及體外的實驗研究,涉及到各種生物酶類( odc 、琥珀酸脫氫酶、 pkc等) 、原癌基因( c - myc 、 c - fos等) 、細胞間縫隙連接及蛋白合成等方面。Electromagnetic field analysis of magnetic saturation characteristics of bearingless switched reluctance motor
無軸承開關磁阻電機磁飽和特性的電磁場分析The influence of msfvw bandwidth on the diffraction efficiency is also considered. for the nonuniform bias magnetic field of u - type parabola profile, when the msw frequency is less than the cut - off frequency at the edge of mo film, the effective mo interaction length reduces. the edge cut - off frequency is determined by the maximum of the nonuniform field
對于拋物型分佈(開口向上)的偏置磁場,當激發靜磁波的rf頻率小於邊緣截止頻率時,磁光作用的有效長度減小(與靜磁波頻率有關) ;邊緣截止頻率由不均勻磁場的最大值決定,靜磁波的下限截止頻率由不均勻場的最小值確定。Results show that the levitation force is generated between the high temperature superconductor and the magnetic field under the critical temperature. the value of the levitation force is determined by the temperature and the gradient of magnetic field. that is the smaller of the gap, the larger of the levitation force when the temperature is fixed, and the value of the levitation force is an exponential function of the gap
研究表明,當高溫超導體的溫度低於其臨界溫度時,在磁場中開始受到力的作用;受到的懸浮力大小由溫度和磁場梯度共同決定;即溫度一定時,懸浮間距越小,對應的磁場梯度越大,懸浮力就越大,力的大小與懸浮間距成指數關系;而當懸浮間距一定時,溫度越低,對應的懸浮力也越大,且超導體剛進入超導態的一段溫度區間懸浮力增大最快。Now we are busy fitting and testing the asipp single - ion microbeam facility. the main work in this paper are as following : testing the performances of bend magnets and magnetic quadruple, simulating the course of beam - line transport, realizing the function of count of the number of radiated ions & control of the electronic beam shutter, calculating different voltage worked on the beam shutter of different beam - line, probing into some factors that may influence the controlling precision and providing some method to solve them
本課題所做的工作主要是對偏轉磁鐵、磁四極場進行性能測試和對束線的傳輸進行模擬計算;編程實現離子記數和束開關的控制;計算出使用不同束線時束開關上所應該加上的電壓值,並且對可能影響控制精度的因素進行了一些探討,並提出相應的解決方案。The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back
勵磁電源結合步進電機原理與脈寬調制技術,選用智能功率模塊ipm作為逆變開關器件,輸出交流脈沖勵磁信號,以調節勵磁轉換頻率和勵磁電流大小為手段,實現對磁場旋轉頻率和磁場強度大小的有效調節,並通過閉環反饋實現閉環恆流控制。2. we present a solution to the scattering of gaussian beams by a concentric multilayered non - confocal spheroidal particle by taking a concentric two - layered one as an example. because the boundaries of these two layers are connected with two different spheroidal coordinate systems, firstly, the electromagnetic fields between the inner and outer boundaries are expanded in terms of the spheroidal vector wave functions with reference to these two systems, and the electromagnetic fields within the inner boundary with reference to the system for it
2 .以雙層橢球為例,我們提出了一種研究同心非共焦多層橢球粒子散射的方法,首先把兩層橢球之間的電磁場用對應于兩個橢球坐標系的橢球矢量波函數展開,這兩個橢球坐標系分別與兩層橢球的邊界面相聯系,在每層橢球邊界面上分別應用邊界條件,建立關于各展開系數的方程組。A control signal generates a magnetic field in the relay s coil that physically closes a switch
一個控制信號在繼電器的線圈產生磁場,物理地閉合開關。In the following section, the thesis demonstrated the robustness of the proposed method in the computation of radiated electromagnetic fields of switched mode power supplies by means of a numerical study on the electromagnetic fields of an electric dipole antenna
應用本文開發基於pml吸收邊界條件三維時域有限差分計算軟體,計算了電偶極子天線的三維輻射電磁場,並將計算結果與解析解進行了對比分析,驗證了時域有限差分法計算高頻開關電源輻射電磁干擾的有效性。3. many transient interference waveforms are measured and recorded during switching operations in three 500kv - substations. these waveforms are analyzed, and the characteristic parameters are summarized in this paper based on statistics analysis
3 、參與了三座500kv變電站瞬態電磁環境的測量工作,獲得了變電站開關操作時產生的瞬態電場、瞬態磁場和瞬態電壓等數據。Secondly, the electromagnetic fields between the inner and outer boundaries are expressed in terms of infinite series with spherical vector wave functions using the relations between the spheroidal vector wave functions and spherical ones
然後根據橢球矢量波函數與球矢量波函數的關系,把兩層橢球之間的電磁場表示為球矢量波函數的級數形式,由球矢量波函數的正交性,進一步建立各展開系數之間的關系。Control of beam halo - chaos via exterior magnetic field switching control
混沌的外部磁場開關控制A new method for magnification of output torque of transverse - flux switched reluctance machines
一種提高橫向磁場開關磁阻電機輸出轉矩的新方法分享友人