角速度

Rotation sensor is an important branch of sensors and it is very crucial for systems to apperceive, acquire and detect information. In this paper, a photoelectric regular polyhedron rotation sensor was designed for the fine measurement of the rotator's speed.

本文所研究的光电式正多面体转速传感器，是针对于回转物体的转速进行高精度测量的一种装置，它可以将回转物体的角速度信息转换成电脉冲信号，并进行测量显示。

The rotational velocity has an important impact on the distribution of pressure and temperature in SRM.

旋转角速度对发动机内部的压力和速度的分布有很重要的影响。

The conditions of self - excitation and the influence of automatic voltage regulator on power system self-excitation are analyzed and the system reaponse characteristics of power system under self-excitation are summarized.

分析了电力系统自激的产生条件及励磁调节器对自激的影响，研究了自激发生后系统的动态过程，提出了以发电机机端电压、发电机转子角速度以及励磁电流这3个量的变化规律作为判断复杂电力系统发生自激的依据，并以一个典型的双机系统的仿真结果验证了判据的有效性。

The main content of this thesis is as follows: 1The structures of EPS are analyzed. The main components of EPS are introduced in detail. Then the distributed torque in EPS is analyzed and the control system model is set up. 2Three control modes are discussed and the control strategy of EPS is studied in detail. Three principal modules in the control strategy are discussed—the predicted module which predicts motor rotational speed and steering rotational speed, the power-assistant module and the return control module. 3The assistant torque curves of the motor are designed by using the B-spline, so that any kind of custom-built assistant torque curves can be designed according to different kinds of automobiles. 4The hardware frame of EPS is studied. The developed controller based on 8-bit MCU MC68HC908MR8 is introduced and many related circuit units are designed, including the control circuit, the driver control circuit and so on. The software structure is discussed, then the steering control program flowchart is given.

本文的主要工作有： 1分析了EPS 的总体构成，对EPS 的各个部件作了详细的介绍，并在此基础上分析了EPS 的受力情况，建立了控制系统模型，并研究了EPS 的安全性能； 2讨论了EPS 的三种控制方式，提出了控制策略，并讨论了其中三个关键模块的作用：预估模块包括对电机转速和方向盘角速度的预估，助力控制模块以及回正模块； 3用B 样条插值方法进行EPS 助力曲线的设计，可按照用户的要求设计任意形状的助力曲线，以满足不同车型和不同用户的要求； 4研究了控制系统的硬件结构，以MC68HC908MR8 为核心设计了控制器，详细讨论了控制器的控制电路、驱动电路等；设计了控制系统的软件，给出了控制程序流程图，并对要点进行了详细的说明。

It is noted that control varies of velocity and angular velocity are defini ed by structure equations and Gaussian curvature.

指出速度控制变量和角速度控制变量完全由结构方程和曲面的高斯曲率决定。

Estimate of angular velocity is used as the state feedback to replace the expensive gyro and tachometer generator.

用角速度估计值作状态反馈可以代替价格昂贵的速度陀螺仪和测速电机。

Firsts it briefly describes the principle of gyroscope-free stapdown inertial navigation system, then a six-accelerometers configuration scheme in triangular prism shape is presented according to the characteristic of engineering appliance.

在简述无陀螺捷联惯导系统原理的基础上，针对某工程应用背景的特点，提出了一种六加速度计三棱柱安装方式，推导了它的其力学编排方程，并对提高载体角速度计算值精度的方法进行了分析。

Finally, the boundary feedback control of the undamped Euler-Bernoulli beamwith both ends free is concerned.

最后，对两端自由的变系数无阻尼Euler-Bernoulli梁采用旋转角、角速度和位移、速度的线性边界反馈指数稳定化问题进行了讨论。

Vehicle side slip angle is considered as mapping of time series of yaw rate and lateral acceleration. A uniform design project is used to select training samples, and the relationship of the three state parameters is established through neural network.

把汽车侧偏角看作横摆角速度和侧向加速度时间序列的映射，采用均匀设计方案对训练样本进行优选，通过神经网络建立三者之间的映射关系。

Passive tracking the aircraft, using extended Kalman filter algorithm to achieve the flat model of variable angular velocity.

详细说明：在飞机无源跟踪中，用扩展卡尔曼滤波算法来实现平面变角速度模型。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了