一种气体缓流流量测量用传感器的研究

本文提出了一种采用悬挂靶的流量传感器，并对其工作特性进行了理论分析及试验研究，这种传感器具有很好的低流速（流量）测量特性，并且具有易于交换量程，工作可靠等优点，试验表明，悬挂靶式流量传感器可测量流速低于１ｍ／ｓ的空气管流。     

热敏电阻温度变换器设计

本文利用最佳参选择法设计热敏电阻温度变换器，给出的线性化电中具有简单，输出受负载影响小等特点。     

粉体材料的粒度及影响

本文阐述了电子元件所用粉体材料的粒度对元件性能的影响。介绍了几种常用的粒度测试方法，提供了不同生产厂的ＺｎＯ、Ｂｉ２Ｏ３、Ｃｏ３Ｏ４、ＣａＣＯ３的透射电镜的对比照片，并指出材料的粒度影响电子陶瓷元件的烧结过程，不同组分的均匀性，基片的密度以及生成物的种类和比例。最后建议建设电子元件用粉体材料的专用生产线并抓紧制定电子元件专用材料的质量标准。     

空心光波导衰减测量的非破坏性方法

业已开发出一种表征空心波导的新方法，此方法，把激光辐射通过光纤耦合百空心波导的孔中。通过沿着波导移动光纤的末端，实现对波导内的内壁上各点的入射辐射扫描。此方法可用于测量衰减而无需截断，或可用于检测波导的导波层上的点状缺陷。．     

Matrix expression and reachability analysis of finite automata

In this paper,we propose a matrix-based approach for finite automata and then study the reachability conditions.Both the deterministic and nordeterministic automata are expressed in matrix forms,and th...     

Stability analysis for discrete linear systems with state saturation by a saturation-dependent Lyapunov functional

This paper concerns the stability analysis problem of discrete linear systems with state saturation using a saturation-dependent Lyapunov functional.We introduce a free matrix characterized by the sum of the absolute value of each elements for each row less than 1,which makes the state with saturation constraint reside in a convex polyhedron.A saturation-dependent Lyapunov functional is then designed to obtain a sufficient condition for such systems to be globally asymptotically stable.Based on this stability criterion,the state feedback control law synthesis problem is also studied.The obtained results are formulated in terms of bilinear matrix inequalities that can be solved by the presented iterative linear matrix inequality algorithm.Two numerical examples are used to demonstrate the effectiveness of the proposed method.