( 3 ) design a tusm ' s drive and control experimental device . lt use dsp as the main element and squaresignal and syntonic drive mode . form the experiment , the system meet the tusm ' s drive and control . speed has fast response 结论描述的开关混和式电动机的前景比较广阔，而目前所作的工作还是远远不够的，还有很多值得探讨的地方，有很多潜力可挖。
2.
( 3 ) design a tusm ' s drive and control experimental device . it use dsp as the main element and squaresignal and syntonic drive mode . form the experiment , the system meet the tusm ' s drive and control . speed has fast response ( 3 )设计了一套行波型超声波电机驱动控制系统电路。采用dsp作为驱动控制的主要器件，方波作为驱动信号，简单的lc谐振驱动方式。
3.
The key components in laser gyro is he - ne ring laser , and the reciprocal action theory between light and medium is the base in studying the ring laser , use the lamb half classical theory , and on the base of density matrix theory , the optical brounch equation was established , which described the movement of amplifying medium atom in the ring syntonic cavity , and according to the medium polarize theory the self consistent equations was deduced , which describe the light intensity and phasic of the counter - propagating wave . on the basis of this equations , adopted the simulation software matlab and virtual instrument programming language labwindows / cvi , we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium , mode pushing effection , burned hole effection and pattern competition , lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro 激光陀螺的核心部件为he - ne环形激光器，而掌握光与介质的相互作用理论是研究激光器的关键，采用拉姆半经典理论为主，在密度矩阵理论的基础上，推导环形谐振腔中描述he - ne气体增益介质原子运动的光学布洛赫方程，运用介质极化理论得出描述激光陀螺反向行波的光强、位相所满足的自洽场方程组，在此基础上，运用matlab仿真软件和虚拟仪器编程语言labwindows / cvi ，对激光陀螺中的介质增益色散特性、频率牵引效应、烧孔效应及模竞争、闭锁效应及环激光的光强和相位特性进行仿真试验研究，并且运用全量子理论，对激光工作原理进行分析，得出二能级系统单模辐射场的光子数密度分布，得出激光场的光子统计分布，仿真激光场的动态建立过程。
4.
It also roundly researched the solution of the helmholtz equation in the circumrotating ellipsoidal coordinates , and discussed how to calculate the solution of the electro - magnetic field in the circumrotating ellipsoidal coordinates using special functions , and researched circumrotating ellipsoidal cavity ’ s latent value and quality parameter using arithmetic simulation , finally we compared the ellipsoidal cavity with the spheriform cavity . the main content of this thesis are as following : 1 . calculated the distribution of the electro - magnetic field inside the ellipsoidal cavity based on maxwell equations and boundary conditions , and confirmed the syntonic mode inside the ellipsoidal cavity using arithmetic methods 本文从maxwell方程及其边界条件求解出椭球腔内的电磁场分布,较为全面的研究了旋转椭球坐标系下赫姆霍兹方程的解的问题,讨论了用特殊函数来求解旋转椭球坐标系下电磁场的解,并通过数值仿真研究了旋转椭球谐振腔的本征值和品质因数,并和球形谐振腔做了比较,主要内容为: 1 .用maxwell方程及其边界条件求解出椭球腔内的电磁场分布,并且分析了椭球腔内的谐振模式。
5.
Firstly the dissertation analyses the reason of vibration and noise of the transmission gear and the box , drawing a conclusion that the change of gear mesh rigidity and transmission error are the crucial causation to engender vibration and noise of the gear - box ; the main source of the noise is the syntonic noise in box vibration and noise 本文首先分别分析了变速箱传动齿轮和变速箱箱体的振动噪声产生机理,得知产生变速箱传动齿轮振动噪声的主要因素是轮齿啮合刚度的变化和传动误差的影响;且在变速箱箱体振动噪声中自鸣噪声是汽车变速箱的主要噪声源。
