侧面碰撞微型加速计

近年来,侧面碰撞事故呈上升趋势,虽然业界对此原因有一些认识,但却对如何最佳地组建侧面碰撞测试方案以有效地收集数据缺乏共识。不过有一点被广泛认同的是,需要在碰撞测试过程中收集更多的数据,但这一点一直以来由于传感器价格昂贵以及外形尺寸太大而受到限制。本文将介绍一款硅MEMS设计的微型加速计。该加速计有很好的价格优势而且易于安装在空间有限的位置。本文主要简述产品规格并讨论了它的关键特性。     

Multi-try counter-meshing gears discrimination device based on MEMS technology

A multi-try counter-meshing gears (CMG) discrimination device based on micro electromechani-cal system (MEMS) technology was designed for some specified information fields. The discrimination deviceconsists of two groups of metal CMG, two pawl/ratchet mechanisms, two driving micromotors and two re-setting micromotors, which make the CMG withdraw by raising the pawls. The energy-coupling element isa photoelectric sensor with a circular plate which is notched. Micromotor is fabricated using the ultravioletLiGA (UV-LiGA) fabrication process and precision mechanical engineering. The discrimination device has thefunction which can automatically reset, with the correct resetting code, it can be tried another times.     

船舶惯性导航技术应用与展望

以惯性导航技术的发展历程为基础,结合相关文献资料,简述了各类惯性导航器件的工作原理,综合阐述了国内外船舶惯性导航技术的发展水平和应用概况,并对国内外发展应用情况进行了比较分析,对未来船舶惯性导航技术及其系统技术的发展进行了展望,对船舶惯性导航技术的发展方向提出了看法。     

基于MEMS加速度传感器的操纵台振动试验研究

利用ADXL001加速计自行设计了MEMS三相加速度传感器。探讨了MEMS加速度传感器在振动测量中的可行性。针对HXN5型内燃机车司机室操纵台的振动控制,利用自主开发的VTCL_DSP信号采集与分析系统对操纵台进行了系统的试验测试分析。针对被动隔振方法提出了优化方案。通过优化方案的试验验证,确定操纵台振动得到了有效控制。     

Intelligent drug delivery system using UML diagrams analysis

A novel intelligent drug delivery system potential for the more effective therapy of the diabeticswas proposed, and the composition of system was analyzed. Based on the design of micro-electro-mechanicalsystems (MEMS), an iterative modeling process was introduced. Unified modeling language (UML) was em-ployed to describe the function requirement, and different diagrams were built up to explore the static model,the dynamic model and the employment model. The mapping analysis of different diagrams can simply verifythe consistency and completeness of the system model.     

微机电系统的发展现状和应用

微机电系统是一项20世纪末兴起、21世纪初开始快速发展起来的高新技术,该文介绍了微机电系统的起源和特点,对微机电系统的加工技术、封装技术、测试技术、应用、国内发展现状及发展前景进行了较全面的论述．     

阵列MEMS测斜仪高精度误差补偿方法研究

受制造工艺和本身系统误差的影响,基于微电子机械系统(Micro Electro Mechanical System,MEMS)的测斜仪初始精度较低.针对这一问题,提出一种综合性补偿算法,对MEMS的测斜仪进行校准和修正,保证其测量的有效性和可靠性.对基于阵列式的MEMS测斜仪进行系统性建模,综合考虑测斜仪零偏、标度因数...     

Application of novel rotation angular model for 3D mouse system based on MEMS accelerometers

A new scheme is proposed to model 3D angular motion of a revolving regular object with miniature, low-cost micro electro mechanical systems (MEMS) accelerometers (instead of gyroscope), which is employed in 3D mouse system. To sense 3D angular motion, the static property of MEMS accelerometer, sensitive to gravity acceleration, is exploited. With the three outputs of configured accelerometers, the proposed model is implemented to get the rotary motion of the rigid object. In order to validate the effectiveness of the proposed model, an input device is developed with the configuration of the scheme. Experimental results show that a simulated 3D cube can accurately track the rotation of the input device. The result indicates the feasibility and effectiveness of the proposed model in the 3D mouse system.     

IMU中MEMS惯性器件的温度补偿方法

MEMS器件目前使用已经比较普及,陀螺器件的温度补偿技术的应用也已经相当广泛,但在补偿过程中,由于MEMS器件本身重复性和精确性都比较差的特点,测量数据波动比较大,高低温实验温度曲线往往不能重合,而且测量过程中经常出现异常点,这给进行曲线拟合与标定带来了一定的问题.文章阐述了对一种采用MEMS陀螺作为其惯性器件的小型化IMU进行高低温补偿的实验方法,在实际高低温实验标定过程中,对实验出现的高低温度曲线不重合以及数据波动比较大的情况,进行比较有效的曲线拟合,使对MEMS陀螺器件的温度补偿达到比较理想的效果.