磁心線 的英文怎麼說
中文拼音 [cíxīnxiàn]
磁心線
英文
rope storage-
That shape, something like an apple sliced downward through its core, would be constant for a bar magnet
形狀像蘋果的向下穿過它的果核的心形薄切片,對條形磁鐵來說磁線是恆定不變的。Sometimes industrial robots go berserk, while heart pacemakers and automatic garage door openers are rendered useless by electromagnetic radiation or " electronic smog " emitted from point - of - sale terminals, personal computers, and video games
有時工業機器人會發狂,而心臟起搏器和自動車庫門開啟器會被銷售終端機、個人電腦和電視游戲釋放出的電磁射線或電子煙霧損壞。The original orientation ( i. e. the mol with respect to the geographical north ) of the core in the formation can be obtained by palaeomagnetic orientation tests. the two results are combined to define the direction of the maximum principle stress of the well or field
該方法根據差應變分析( dsa )實驗確定地應力相對于巖心標志線的方向,利用古地磁方法確定巖心標志線相對于現代地理北極的方位,兩者結合確定地應力方向。A null output should occur when the core is at the center point between the two secondary coils.
當磁心位於兩個次級線圈之間的中點時,沒有輸出。According to biot - savart law, the general expression of magnetic field distribution generated by circular current in space has been calculated in this paper, which further discusses the magnetic field in the plane, the central axis and the far space
摘要直接由畢奧薩伐爾定律的計算公式,在更為普遍的情況下,計算出了圓形線電流在全空間的磁場分佈,並進一步討論了其在中心軸線上、平面內及遠區的磁感應強度。On the other hand, the harmonic and surge current in capacitor banks is restrained so that the capaci - tor is protected by reactor. since this type of reactor has a dry - type air - cored structure, no - core structure without ferromagnetic induc - tion effect, it is provided with the feature of good linearity and low noise, so that the product is convenient for maintenance and ope - ration in all weather
該型電抗器採用乾式空心結構,維護簡單,運行安全,無鐵心,不存在鐵磁飽和,電感值不會隨電流變化而變化,線性度好,噪聲低,適合全天候條件下運行。Numerical simulation for 3 dimensional geologic bodies with different electric property parameters, which is conducted under the way of central loop tem, is the theoretical foundation for understanding its electromagnetic response characters and developing new interpreting methods
摘要不同電性參數的三維地質體在中心回線瞬變電磁觀測方式下的數值模擬是認識其電磁響應特徵規律並進而開發新解釋方法的理論基礎。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。The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed
本文對空芯動圈式直線同步電動機進行了深入細致的研究,內容包括: ( 1 )採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式(集中電流法、分佈電流法) ,同時介紹了兩種永磁電機氣隙磁場計算方法(磁荷法,直接求解拉氏方程法) ,分析各種方法的優缺點,討論電機參數對氣隙磁密的影響; ( 2 )介紹了單層同心繞組的布置方式,根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式,分析靜態力?位移特性; ( 3 )建立空芯動圈式直線永磁同步電動機動態模擬模型,模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。In this thesis, the characters of the high - speed maglev transportation safe speed protection system are introduced firstly in chapter one. subsequently, the realization of the speed curve watching function that is one of the core safety functions of the maglev train ' s operation control system is discussed carefully in chapter two. in chapter three the arithmetic of the maglev train ' s safe speed curves is discussed, including the safe braking speed upper limit curve, the safe braking speed lower limit curve, the safe speed upper limit curve and the range of the maglev train ' s safe operating speed
本文首先綜述了磁浮高速鐵路系統安全速度防護系統,第二章對運行控制系統的核心防護功能?速度曲線監控功能的實現作了詳細的論述,第三章則給出了速度曲線監控功能中磁浮列車安全速度防護曲線的演算法,包括磁浮列車安全制動上限速度防護曲線、磁浮列車安全制動下限速度防護曲線、磁浮列車安全速度防護上限曲線和高速磁浮列車安全運行速度的范圍。The government s foresight programme which sets an agenda for future action on science is working out new strategies in flood and coastal defence, exploiting the electromagnetic spectrum ; in cyber - trust and crime prevention, in addiction and drugs, the detection and identification of infectious disease, tackling obesity, sustainable management of energy and mental well - being
政府的前瞻計劃為科技制定了未來的行動議程。該計劃要制定出有關應對洪水和海岸防護、開發利用電磁頻譜、線上安全機制及犯罪預防、成癮與毒品、傳染性疾病的檢測與識別、解決肥胖問題、可持續能源管理以及心理健康的新戰略Based on the electromagnetic theories, this dissertation presents analytical method to solve the magnetic field caused by the air - cored solenoid coil
本論文從電磁場理論出發分析了空心圓柱線圈的磁場,並利用矢量磁位求出了線圈的電感。Far below the southern tip of africa they found a small region where the magnetic field lines point peculiarly toward the center of the earth instead of toward the surface, as do the dominant lines in that region
他們發現,在非洲南端的地表深處,有一小塊區域,那兒的磁場磁力線罕見地指向地心,而不是如該區域的主磁場磁力線一般地指向地表。The background of this dissertation is the gantry synchronous control problem of numerical control gantry - moving type milling machining center drived by two linear permanent magnet synchronous motors with the same parameters. theory of dynamic precision synchronization traverse and research of realization methods for linear servo dual position loops system is researched
以兩臺永磁直線同步電機驅動的數控龍門移動式鏜銑加工中心同步控制問題為背景,對直線伺服雙位置環動態精密同步進給理論和實現方法進行研究。This gamma radiation is absorbed by atoms inside the sun to be reemitted at slightly longer wavelengths
核能在太陽的核心被釋放為高能的伽馬射線。這是一種電磁射線,就象光波和無線電波一樣,只是波長要短得多。The nuclear energy is released at the sun ' s center as high - energy gamma radiation, a form of electromagnetic radiation like light and radio waves, only of very much shorter wavelength
核能在太陽的核心被釋放為高能的伽馬射線。這是一種電磁射線,就象光波和無線電波一樣,只是波長要短得多。Pinning centers, that are some abnormal regions in type ii superconductors, will hinder the flux motion. certain of remnant magnetism in a superconductor will make it to a superconducting permanent magnet
非理想第類超導體內部存在的異常區,即釘扎中心,會對磁通線的運動產生阻礙作用,使超導體具有一定的剩磁而成為超導永磁體。In pulsed field magnetization condition, we find some new phenomena characteristic, that is, the trapped fluxes of ybco bulk increase with increasing intensity of applied field up to about 1. 9t, but decease beyond this value and the scanning distribution map of the trapped fluxes on the surface of the superconductor is not slick, which is different with the superconductors magnetized in constant magnetic field and the normal permanent magnets
超導體在脈沖場下具有特殊的勵磁特性,當脈沖場在1 . 9t左右時,由於在脈沖場下超導體內的磁通線運動受到較大的粘滯力作用,超導體表面中心的俘獲場分佈掃描圖將出現一些凹陷區域,這是跟超導體在恆定場下的勵磁和一般永磁體所不同的。Using maxwell electromagnetic equations, by solving the boundary - value problem of magnetic vector potential, analytical expression to impedance increment of the solenoid coil in eddy current testing of the medium in half space was given. theoretical result was modeled in computer. results showed the validity and feasibility of the model
利用maxwell電磁方程組,通過求解矢量磁位的邊值問題得到了矢量磁位的解析解,進而導出了媒質上方放置式空心線圈的阻抗增量解析式,並對阻抗變化表達式進行單層板厚度和三層板間隙的檢測模型進行了模擬。The vibration of magnetism pole center in main and subsidiary generator could be deduced to the different order when the generator put into power system
主、副發電機磁極中心線與系統初相角前後不同,將使主、副發電機併入電網的順序不同。分享友人