摘要：介绍了红军东征总指挥部旧址“立体交融式”的布局特征,通过对砖木结构的东西厢房和全院青砖贴面的外部装修进行的分析,阐述了该建筑群从总体上脱离了“浓郁”的黄土文化特征,并指出建筑群的细部装饰有近代特征,且建筑群的设计思想有近代新思想与传统文化的融合。

摘要：A research on the electrostatic torques in the electrostatically suspended gyroscope (ESG) that uses the mass-unbalance modulation (MUM) scheme (MUM-ESG) to sense the direction of the rotor's spinning axis is presented here. Spherical harmonic functions are used to describe the asphericity of the rotor and the electrodes. Rotational matrix theory in quantum mechanics is utilized to transform the description of the rotor's asphericity from the rotor-fixed frame into the cavity-fixed frame. And the principle of the virtual displacement is applied to find out the electrostatic torques acting on the rotor. Analytical expressions of the electrostatic torques indicate that there are only three kinds of factors need to be considered when looking for the electrostatic torques in the MUM-ESG. The factors are the asphericity of the rotor, the eccentric rotation of the rotor, and the coupling between the rotor's translational displacement and asphericity. An intuitionistic explanation for the electrostatic torque that comes of the rotor's eccentric rotation is presented also. The effects of these conclusions should be tested and verified in the future experiments and applications.

摘要：Nonlinearity is an important characteristic in electrostatic suspension system (ESS). This paper concludes the nonlinear parts in ESS, which generally result from the relationships between rotor displacement and capacitance, rotor displacement and electrostatic force, and control voltage and electrostatic force. In terms of the nonlinearities, a new control method with modified internal model control (IMC) was proposed to analyze the ESS, deduce the transfer function of the modified IMC controller in ESS, and simulate this new application in ESS. Comparing with proportional integral derivative (PID) control, IMC has only a parameter, and has better performance. As a result, IMC solves nonlinearity error well in ESS with only one uncertain parameter, and performs well when the rotor has large displacement.

摘要：针对ESG静电悬浮(支承)和电场恒速要求,采用DSP结合FPGA技术、AT89C51单片机结合DDS技术,设计并研制了静电支承/恒速数字控制系统硬件和软件。半物理仿真实验表明,系统设计方案可行,功能可靠,能够达到设计要求。

摘要：讨论了同步解调法实现静电陀螺仪质量不平衡调制(MUM,MASS-UNBALANCED MODULATION)小角度读取的原理,分析了影响读取分辨率的各种因素,并对其实施方案中的相关技术进行了探讨。研究表明,尽管MUM读取方案非常适用于实心转子静电陀螺仪,但前提是将其小角度读取的分辨率提高到可与光电方法相比的水平(角秒级)。要实现这一目标,首先要保证转子和电极的机械特性达到一定要求;在此基础上,还要在支承系统的结构、转子位移测量电路设计等方面进行精心设计。

摘要：目的研制一种检测心肌生物力学属性的介入超声硬度检测仪,可直接、定量检测活体心肌组织硬度,为心肌病变提供力学相关资料。方法仪器由介入超声硬度检测导管、生理信号单元和主机组成。检测时,在X线透视下,将导管通过犬外周动脉血管进入左心室,印压左室壁,超声检测心肌厚度形变值,压力传感器获得印压力值,根据应力-应变关系,计算得到表征组织硬度的参量。结果应用该仪器进行活体犬心肌硬度检测,成功获取了舒张末期左室心尖部和游离壁心肌硬度值,其值分别为(40.55±4.75)kPa、(36.02±7.03)kPa。结论该仪器为直接定量检测活体心肌硬度提供了方法,可为临床判断心脏的整体和局部舒张、收缩功能异常提供定量检测技术,同时,也可检测其他深部组织硬度改变。