Firstly, according to electromagnetic field theory, the 2-dimensional (2-D) mathematical model of a three phase squirrel-cage Y802-2 induction motor is developed. Then general equations can be deduced from finite element discrete and functional analysis. The motor's 2D solving region of electromagnetic field is given based on the boundary conditions and assumption conditions of the squirrel-cage induction motor. Through finite element mothod and inner–outer convergence method, magnetic field distributions and magnetic forces of bars can be calculated in following rotor conditions: health rotor, one single broken bar, two adjacent broken bars, two broken bars with one good interval, two broken bars with two good interval and four adjacent broken bars.

本文首先根據(jù)電磁場理論建立Y802-2型三相籠型感應(yīng)電動機(jī)二維電磁場的數(shù)學(xué)模型伊人网黄色，并對其進(jìn)行了有限元離散以及泛函分析免费黄色在线网站91，推導(dǎo)出總體方程www.国产黄色.com；在基本假設(shè)和邊界條件基礎(chǔ)上国内激情网站，給出籠型感應(yīng)電動機(jī)二維電磁場的求解區(qū)域国内在线精品一区二区AV，然后應(yīng)用有限元并結(jié)合內(nèi)外雙收斂方法美女视频黄是免费的，對樣機(jī)穩(wěn)態(tài)運(yùn)行進(jìn)行數(shù)值計(jì)算，得出電機(jī)在轉(zhuǎn)子完好亚洲黄一级色视频、一根導(dǎo)條斷裂黄色视频精品在线、連續(xù)兩根導(dǎo)條斷裂、間隔一根兩根導(dǎo)條斷裂国产精品熟女视频一区二区、間隔兩根兩根導(dǎo)條斷裂及連續(xù)四根導(dǎo)條斷裂六種情況下的磁場分布和導(dǎo)條所受電磁力的變化情況玖玖玖玖久久玖玖玖玖玖玖爱。

Secondly,the driving force of the motor is analyzed in finite element analysis method.

其次，用有限元的分析方法對超導(dǎo)電機(jī)的電磁力進(jìn)行了數(shù)值計(jì)算久久R99视频。

Based on the research of underground asynchronous motor protective system,a new measurement and control system of flameproof magnetic starter is developed by using AT89C52SCM as the central control unit.

本文在分析井下異步電動機(jī)保護(hù)系統(tǒng)的基礎(chǔ)上AV大全在线观看，以AT89C52單片機(jī)為中央控制單元，研制了新型礦用隔爆型磁力起動器測控系統(tǒng)国产91在线视频免费。

In order to realize intelligent control for flameproof and intrinsic safe combined vacuum switchgear,A system is developed based on programmable logic controller.

根據(jù)礦用隔爆兼本質(zhì)安全型組合磁力控制站的工作原理四虎在线永久免费视频网站，以 PLC為中央控制單元，研制了組合開關(guān)的測控系統(tǒng)A片无遮挡无码免费视频网站。

Xiaodong Song said that, he believed the magnetic force mutual function is the spin rate different reason.

宋曉東說精品自拍一区，他相信磁力相互作用是旋轉(zhuǎn)速率不同的原因。

Does not allow a ferromagnetic impurities, and particles into the magnetic drive and vice friction bearings.

1不允許有鐵磁雜質(zhì)色妞www精品视频一级欧美、顆粒進(jìn)入磁力傳動器和軸承摩擦副全部色费特色黄特色大片看片。

Fluxgate sensors have the second harmonic voltage amplitude with the magnetic field strength is proportional to the adoption of second harmonic filter through phase-sensitive detector rectifier, to achieve full-wave rectifier, low-pass filter in through the phase-sensitive detector after the second harmonic into a smooth DC signal, on the one hand to the back of the circuit, on the one hand, the magnetic flux through the door to feedback regulation, the opposite magnetic field generated with the measured magnetic field, so that the work has always been zero fluxgate magnetic field, thus ensuring the most high-precision fluxgate.

磁通門傳感器產(chǎn)生的二次諧波電壓幅值與磁場強(qiáng)度成正比，二次諧波通過通過濾波器再通過相敏檢波器整流91自拍视频在线观看，實(shí)現(xiàn)全波整流探花自拍日韩视频在线，在通過低通濾波器將相敏檢波后的二次諧波轉(zhuǎn)化成平滑的直流信號，一方面送到后面的電路進(jìn)行怡红院视，一方面通過反饋調(diào)節(jié)送到磁通門中亚洲熟女自拍一区91，產(chǎn)生與被測磁場相反的磁場，使磁通門始終工作零磁場下，從而保證磁通門的最高精度有什么av黄色网站在线播放。關(guān)鍵詞：磁通門磁力儀好男人在线社区www视频，相敏檢波器，磁場

Fluxgate magnetometer: An instrument capable of detecting changes in the geomagnetic field of the order of one gamma.

磁通門磁力儀：能檢測到一伽馬數(shù)量級的地磁場變化的一種儀器欧美激情视频在线观看。

In USA, tensor magnetic airborne gradiometer(using HTS-SQUID) GETMAG and MAGSAFE under construction by CSIRO in Australia.

研究和開發(fā)的航空全張量磁力梯度儀系統(tǒng)亚洲综合无码一区二区三区四区，澳大利亞聯(lián)邦科學(xué)工業(yè)研究組織正在研制的航空張量磁梯度儀GETMAG和MAGSAFE，后者由CSIRO和澳大利亞國防科學(xué)與技術(shù)組織共同研制天堂资源中文最新版。

Several new magnetometric technologies have been introduced and reviewed, including airborne vector magnetometry in Australia, ground tensor magnetic gradiometer system using fluxgate magnetometers installed by USGS, airborne full tensor LTS-SQUID gradiometer developed and tested by IHPT in Germany, full-tensor airborne HTS-SQUID magnetometer designed and tested by ORNL and Tristan Technologies Inc.

評介了澳大利亞BHP比利頓礦產(chǎn)勘查公司和礦產(chǎn)發(fā)現(xiàn)技術(shù)公司的航空矢量磁測三级片电影九九热操，美國地質(zhì)調(diào)查所研制的地面張量磁梯度儀，德國耶拿物理學(xué)高技術(shù)研究所的航空全張量磁力梯度儀系統(tǒng)多人群p交换在线视频播放，美國橡樹嶺國家實(shí)驗(yàn)室和特瑞斯坦技術(shù)公司Tristan Technologies日产顶级黄色片， Inc。