基于Polytec激光测振仪的微振动测试分析系统

给出了基于Polytec激光测振仪的微振动测试分析系统的组成及其采用的一种全新的频率特性的测试、分析方法.针对硅微谐振式传感器频率特性(谐振频率和品质因数)测量的特殊性,提出了以线性调频信号为激励信号、线性调频Z变换(CZT)为频谱分析工具的系统频率特性的动态测试方法,使得该系统能够高效、精确地测量机械式谐振传感器的频率特性.     

角位移传感器测试系统

中科泛华推出了新品——角位移传感器测试系统。该系统主要用于磁感式角位移传感器的校准和终检测试。角位移传感器测试系统可在稳定的环境温度范围内,采用通讯方式获取DUT原始数据,并对DUT进行校准和编程,最后测量DUT的输出信号进行验证测试。     

泛华测控传感器测试系统再添新品——角位移传感器测试系统

2009年2月,北京中科泛华测控技术有限公司在深耕传感器测试领域又推出了新品——角位移传感器测试系统。该系统主要用于磁感式角位移传感器的校准和终检测试。角位移传感器测试系统可在稳定的环境温度范围内,采用通讯方式获取DUT原始数据,并对DUT进行校准和编程,最后测量DUT的输出信号进行验证测试。     

高温微压力传感器校准实验系统的研究

为满足高温光纤微压力传感器校准实验的需要,在分析传感器测量结构和校准原理的基础上,设计了一套基于高低温试验装置和上位机人机软件的校准实验系统。对某一传感器样品进行了校准实验,结果表明,该系统能模拟传感器真实的工作环境,实现传感器在高温微小压力环境下的校准,并且具有很好的可靠性和稳定性。     

泛华测控推出角位移传感器测试系统

2009年2月,北京中科泛华测控技术有限公司以“柔性测试”技术为核心设计理念,在深耕传感器测试领域又推出新品——角位移传感器测试系统。该系统主要用于磁感式角位移传感器的校准和终检测试。角位移传感器测试系统可在稳定的环境温度范围内,采用通信方式获取DUT原始数据,并对DUT进行校准和编程,最后测量DUT的输出信号进行验证测试。     

泛华测控传感器测试系统再添新品——角位移传感器测试系统

<正>2009年2月,北京中科泛华测控技术有限公司在深耕传感器测试领域又推新品——角位移传感器测试系统。该系统主要用于磁感式角位移传感器的校准和     

利用光纤共振技术测微振动的设计与实现

传感器在朝着灵敏、精确、适应性强、小巧和智能化的方向发展.在这一过程中,光纤传感器这个传感器家族的新成员倍受青睐.我们探讨一种新型光纤传感器系统,该系统利用光纤共振及光纤抗电磁干扰特性测量大型机械的微振动,系统首先利用光纤共振取出变化信号,然后计算机对图像进行采集、处理,最后完成系统的定标,振幅的测量.该系统把机械振动转换为光学图形来表现,为探测大型机械的微振动提供了实时、准确、经济的方法.     

泛华测控传感器测试系统再添新品——角位移传感器测试系统

2009年2月,北京中科泛华测控技术有限公司在深耕传感器测试领域又推出了新品——角位移传感器测试系统。该系统主要用于磁感式角位移传感器的校准和终检测试。     

基于微惯性测量单元的导航系统研究

随着半导体行业的发展,微机电系统(MEMS)的使用越来越广泛,已经开始进入消费电子市场.MEMS带来的操作、功耗和尺寸上的革命性变革是其成功进入消费类电子市场的关键.ADIS16350就是一个完整的三轴陀螺和三轴加速度计组成的惯性感应系统.该传感器包含AD公司微机械和混合信息处理技术,是一个高度集成的解决方案,提供校准后的数字惯性感应.本文就是在此基础上设计的一个导航系统,该系统不仅可以应用在航模上做导航控制,还可以往其他姿态测量、运动控制与稳定方向发展.     

基于微控制器的风速计在线控制和测量系统设计

针对两种基于对称热电偶结构和基于晶体管的圆形加热条结构的二维集成风速风向微传感器及其风向测量的问题,设计了采用微控制器进行在线控制和利用软件算法实现风速风向测量的传感器系统.系统集微传感器结构、控制与测量电路于一体,显著提高了二维风速风向传感器的在线控制和测量能力及其系统兼容性,并且便于系统扩展功能.测试结果表明,风速计设计满足实际风速和风向的测量要求.     

Assessing Ideational and Evaluative Skills and Creative Styles and Attitudes

This article describes the rationale for the multiphase creative problem solving process, and reports the findings from an empirical investigation conducted to facilitate the problem solving of managers. The ideational skills of the managers were assessed before and after training in a complete process of creative problem solving, along with their ideational attitudes, creative problem solving style (i.e., generator, conceptualizer, optimizer, or implementor), and evaluative skill (i.e., ability to recognize original ideas). The most important findings indicated that the training had a significant impact on the evaluative accuracy of the managers. They were significantly more accurate in their judgments about original ideas after training, both in their identification of original ideas and their recognition of unoriginal ideas. After training, the managers also gave more solutions and more original solutions to problems. Finally, several variables (e.g., the “preference for active divergence” attitude, and the conceptualizer process style) seemed to moderate the impact of training. Training was therefore effective, with specific effects that can be predicted from pre-training individual differences in attitudes and process style.     

Semantics and verification of monitors and systems of monitors and processes

In this paper we present a sound and complete semantics for the monitor concept of C.A.R. Hoare. First a method for specification of monitors, introduced by O.-J. Dahl, is reviewed. This method is based on the relation between the historic sequence of monitor procedure calls and the historic sequence of monitor procedure exits. Based on such specifications and our new monitor semantics we present a method by which it is possible to prove that a concrete monitor is an implementation of an abstract one. In the last part of the paper an axiomatic semantics for systems of concurrent processes and monitors is introduced. The method supports verification by separation of concerns: Properties of the communication to and from each process are proven in isolation by a usual Hoare style axiomatic semantics, while abstract monitors are also specified in isolation by the method reviewed in the first part of the paper. These properties of the components of the system are then used in a new proof rule to conclude properties of the complete system. Stein Gjessing received a Ph.D. (actually a Dr. philos.) from the University of Oslo (Norway) in 1985. Presently he is an Associate Professor at the Institute of informatics, University of Oslo, Norway. Dr. Gjessings research interests are in the area of concurrent and distributed programming, operating systems, formal specification and verification and programming languages.     

Integrating and automating analysis and optimization

The development of an interface coupling program on personal computers for an analysis software system such as ANSYS, SAP, etc. and an optimization software system, MOST, is presented. By controlling and directing the communications the interface coupler integrates the two programs while retaining their versatility and interactive features. The integrated system is used to solve a numerical example of active noise control for a three-dimensional enclosure, in which an energy density level of control points is minimized by adding the sound source to cancel the unwanted noise. The interface coupling program automates with relatively low cost the iterative process for designing an engineering system, remaining flexible in acoustical modelling and efficient in equation solving. Also, the coupling interface is developed in a general-purpose way so that it can be expanded easily to integrate more analysis software packages of different kinds.     

国内外标准法规比对分析系统设计与实现

为发现我国国家标准与国外发达国家标准法规的差距,从根本上提高我国国家标准的总体质量,提升我国产品的质量安全水平,以关键指标(因子)为核心,研究国内外标准法规比对的工作流程,利用面向对象的方法设计,实现了国内外标准法规比对分析系统。该系统适用于所有产品国内外标准法规的比对工作。     

高等院校行政分析与决策系统的设计与实现

为提高高等院校的管理水平和决策水平,充分利用校园网资 源,开发了高等院校行政财政分析与决策系统。解决了诸如数据的动态查询、自动生成报表 、网络环境下数据共享等技术问题,具有网上数据共享、图形界面友好和安全的保密措施等 特点。