基于智能化的传感器教学实验的仿真系统     

焦敬品  何存富  吴斌  费仁元  王秀彦 《中国教育技术装备》2002,(12):1-2

基于智能化的传感器教学实验仿真系统是为辅助传感器测量与虚拟仪器实践教学平台的使用而设计的仿真测量软件系统，它由Access软件和LabVIEW软件编写，基于智能化的传感器教学实验仿真系统为实现实验环节的网络化教学做出探索性工作。对实验环节现代化具有重要的实用价值。  相似文献   

Modeling of sensor function for piezoelectric bender elements     

Yan-guo Zhou  Yun-min Chen  Hao-jiang Ding  Wei-qiu Chen 《浙江大学学报(A卷英文版)》2008,9(1):1-7

An analytical sandwich beam model for piezoelectric bender elements is derived based on the first-order shear deformation theory （FSDT）, which assumes a single rotation angle for the whole cross-section and a quadratic distribution for coupled electric potential in piezoelectric layers. Shear coefficient is introduced to correct the effect of transverse shear strain on shear force and the electric displacement integration. Static and free vibration analyses of simply-supported bender elements are carried out for the sensor function. The results illustrate the high accuracy of the present model compared with the exact 2D solutions.  相似文献   

楼宇自动防火报警系统的设计原理及实现   总被引：1，自引：0，他引：1  

胡涛 《毕节学院学报》2006,24(4):42-45

楼宇自动防火报警系统即用一片CPU、可编程并行接口芯片8255A、若干小规模集成电路及烟雾传感器构造一个简单的楼宇防火报警装置,系统根据楼房周围的烟雾浓度自动监控楼房火情,当烟雾浓度达到一定程度,系统报警,当烟雾浓度下降后,系统停止报警。  相似文献   

Investigation of array robustness to sensor failure     

A. Alexiou 《Journal of The Franklin Institute》2005,342(3):255-272

The presence of uncertainties in the array response, due to sensors operational malfunctions and environmental effects, results in a performance degradation often greater than the application requirements can afford. Various attempts have been made to measure the effect of the presence of uncertainties on the performance of direction-finding (DF) algorithms and, moreover, several methods have been developed to either detect or partly rectify the resulting defects in performance and hence improve the robustness of the array system. However, the impact of sensor response uncertainties on the ultimate array DF capabilities, as they are determined by the array manifold characteristics, has not been considered thoroughly. In this paper, the sensitivity of array DF capabilities to sensor response errors is first formulated and investigated. Robustness and reliability measures are then proposed. Such measures can be used as tools for the evaluation of each sensor's importance within the array geometry and as criteria for the comparison of a number of array geometries.  相似文献   

ABS工作原理简介     

李雪晶 《黑龙江科技信息》2014,(29):52-52

ABS(车轮防抱死系统)依靠装在各车轮上的高灵敏度轮速传感器实现计算机控制的自动调节制动压力的刹系统。在制动过程中,当车轮接近抱死时,电控单元按照"降压"、"保压"、"升压"这三个模式对各分泵进行控制,直至车辆停止。  相似文献   

水泥在料配料控制系统设计     

阎焕忠  马斌  王长涛  董奎林 《科技广场》2010,(1):154-156

本文研究水泥生料配料控制系统的工艺流程,分析了系统的参数特点,在系统上位机进行主副随动的基础上,设计了物料配料控制器。分析和设计基于PID控制算法的水泥生料配料系统控制算法。实际工程应用表明,该系统具有很好的控制效果。  相似文献   

基于Zigbee网络的路由算法研究     

陈楠  吕九一 《科技广场》2010,(9)

本文针对基于Zigbee网络的路由算法进行相关研究,并分析其优缺点。  相似文献   

恒星敏感器     

张辉 《河池学院学报》2004,24(4):54-56

恒星敏感器是目前航天器用于确定姿态的最先进的空间姿态敏感器之一。综述了恒星敏感器的组成、工作原理及国内外发展近况,并简要介绍了其未来的发展趋势。  相似文献   

湿度传感器发展方向邹议     

周焱  胡氢 《科技广场》2006,(1):111-113

本文介绍了湿敏元件的特性,重点阐述集成湿度传感器、单片智能化湿度/温度传感器的性能特点及产品分类,最后给出集成湿度传感器典型产品的技术指标。  相似文献