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magnetic induction 【物理學】磁感應;磁感應強度(又作 magnetic f...

magnetic ink

Abstract : the anti - plane problem in transversely isotropic magnetoelectroelastic materials containing an elliptic inclusion is considered by using the complex variable approaches . the analytical expressions for the field variables in both the matrix and the inclusion are obtained when the stresses and the electromagnetic fields at infinity are uniform . the results show that the stress , the electric displacement and the magnetic induction inside the inclusion are constants 文摘:用復變量方法研究了橫觀各向同性電磁彈性固體的反平面夾雜問題,得到了遠場均勻應力和電磁場作用下夾雜內外彈性場和電磁場的解析表達式,結果表明夾雜內的應力、電位移和磁感應強度為常量。

Controller is composed of debugging box and magnetic induction 485 communication controller box , which communicate by rs485 . dtzziii - dc - t type controller is mainly used for less transmission signal losing and even more convenient debugging at the state of long distance signal transmission , biggish losing and debugging isnt convenient 控制儀由調試盒與磁感應485通訊控制儀兩部分組成,兩部分通過rs485通訊,主要用于信號傳輸較遠,損失較大,以及調試不方便的情況下,更小的傳輸信號損失,更方便的調試。

Through analysising the characteristics of the power system with floating neutral point deeply , the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design . in this design , the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method 在本設計中,采用高速的dsp處理器,實現了對故障特征信息的高速采集與處理;采用大功率的功放芯片與變壓器配合的方法,實現了大電流信號的驅動輸出;采用485總線技術,組建了裝置主機與多探測器之間的主從式通訊網絡,實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路,采用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術,實現了控制器與多外設的接口及數字信號的串并轉換;采用了先進的lcd液晶顯示模塊及鍵盤接口芯片,設計了人機信息交互的接口;采用了模塊化的軟件設計方法,開發了裝置主機及探測器的軟件程序。

For solving this problem , there are several ways of measuring the pts of the swr at present , such as demarcating path length , strain and stress , magnetic induction measurement and ultrasonic measurement . however , portable , universal and effective instruments or methods don ’ t appear up to now in china 為了解決這個問題,目前已經有了多種檢測鋼軌溫度應力的方法,比如為標定軌長法、應變法、磁感應測量法和超聲波測量法,但是在我國,便攜、通用有效的檢測儀器或方法還沒有被研制出來。

As the pneumatic actuators : the application of magnetic switch ( magnetic induction switch and magnetic sensor ) is very extensive , and the application of pneumatic transmission and hydraulic transmission are realized mostly through of the magnetic switch , while , for the equipments of pneumatic transmission and hydraulic transmission where the magnetic switches are used , the motion process , travel and action of the equipments all depend on magnetic switch to conduct feedback to cpu to ensure the realization of automation 作為氣動執行器:磁性開關(磁感應開關、磁傳感器)的應用也非常廣泛,液壓與氣壓傳動的運用大部分是透過磁性開關來實現,在使用磁性開關的液壓與氣壓傳動設備中,設備的運動過程,行程,動作等都需要透過磁性開關回饋給cpu ,以保證自動化的實現。

Next , in order to comprehand the electromagnetic characteristics and the dynamic characteristics of the new type of magnetic micromotors , the dissertation applied the concept of the magnetic scarlar potential of the irrotational magnetic fields and set up the mathmatic model for the inner magnetic field of the new type of motors from the basic equations and the boundary conditions of the motor magnetic field . oh the basis of the mathmatic model , the dissertation analized the various qualities of the magnetic field of the air gap between the rotor and the stator and gave a detailed calculation of the air gap ' s magnetic potential , magnetic field intensity , magnetic induction , the shape of the magnetic scarlar potential level surface , the distribution of the magnetic circuit , the magnetic induction the self - inductance and the mutual inductance of the coils 其次,為全面了解這種新型電磁電機的電磁特性和動力特性,本文從電機磁場的基本方程及其邊界條件出發,應用無旋磁場的標量磁位概念,建立了端面搖擺式電磁微電機內部磁場的數學模型,并以此為基礎,詳細分析了電機氣隙磁場的各方面性質,對氣隙磁場的磁標位、磁場強度、磁感應強度、等磁位面形狀、電機工作磁路的分布、電機的工作磁通量以及激勵繞組的自感和相互之間的互感進行了詳細的分析計算。

Compared with traditional silicon steel , fe - 6 . 5wt % si in theory is considered as an excellent property soft magnetism alloy . it has such excellent soft magnetism properties as higher permeability higher saturation magnetic induction near - zero magnetostriction and low core loss Fe - 6 . 5wt si硅鋼是一種性能優異的軟磁合金,與傳統硅鋼材料相比,它具有高磁導率、高飽和磁感應強度、低磁致伸縮和低鐵損等更優異的性能。

After gentamicin sulfas and amikacin sulfas are magnetized under different magnetic induction intensity and time , bacteriostatic annulus diameters of pseudomonas aeruginosa are increased differently by these two kinds of agents 摘要本研究發現,將硫酸慶大?素、硫酸丁胺卡那?素兩種抗菌藥物,經不同磁感應強度、不同時間處理后,可使綠膿桿菌的抑菌環直徑有不同程度的增加。

The magnet of kaiyuan ct permanent canister magnetic dressing machine is made of the high quality ferrite material or rare earth alnico . magnetic separator the average magnetic induction of the canister surface is 100 - 600mt 磁選機-豫重牌ct永磁筒式磁選機的磁系,采用優質鐵氧體材料或與稀土磁鋼復合而成,磁選機筒表平均磁感應強度為100 600mt 。

Whereas tesla had combined magnetic induction coils , resistors and capacitors to fashion his split - phase motors , he now connected induction coils and capacitors in new configurations to produce high - frequency currents 當時特士拉已經在他的分相馬達里結合了磁感應線圈、電阻及電容,現在他將感應線圈與電容以新的方式連結起來,產生高頻電流。

The distribution of magnetic induction in rectangular soft - contact mold during electromagnetic continuous casting ( emcc ) was investigated considering the electric frequency 摘要研究了在電磁軟接觸連鑄過程中,電源輸入頻率的變化對矩形電磁軟接觸結晶器內的磁感應強度分布規律和彎月面變化情況的影響。

In order to measure magnetization characteristic with high accuracy we must keep the wave of magnetic induction is sine , so we must control the excitating voltage 為了能夠精確的測量磁化特性必須保證磁感應強度波形為正弦,因此必須對激磁電壓波形進行控制。

We can produce magnetic dressing machine of different surface magnetic induction such as down - flow process , semi - up - flow process , up - flow process etc . magnetic separator 磁選機根據用戶需要,可提供順流半逆流逆流型等多種不同表強的磁選機。

1 safety of household and similar electrical appliances - part 2 - 210 : particular requirements for magnetic induction therapy apparatus for home use amendment 1 家用和類似用途電器的安全.第2 - 210部分:家用磁感應理療儀的特殊要求

The wave of magnetic induction density will bring distortion with the raising of excitating voltage while measuring the magnetization characteristic 在進行磁化特性測量時,隨著激磁電壓的升高,磁感應強度波形將產生畸變。

Safety of household and similar electrical appliances - part 2 - 210 : particular requirements for magnetic induction therapy apparatus for home use 家用和類似用途電氣設備的安全.第2 - 210部分:家用電磁感應理療儀的特殊要求

The production is composed of debugging box , magnetic induction 485 communication controller , ? high strength magnet and buffer rubbers 二產品組成:控制儀由調試盒磁感應485通訊控制儀高強度磁鐵和緩沖橡膠塊組成。

X - y - z model anisotropic ferrimagnetism the ground state magnetic induction of two - dimensional rectangle double lattice under heisenberg system 系統下的二維復式長方晶格的基態磁化強度的性質

The centimeter - gram - second unit of magnetic induction , equal to one maxwell per square centimeter 高斯電磁感應的厘米克秒單位,等于每平方厘米的麥克斯韋爾