Abstract:This paper introduces the character of the gas sensors. Based on the gas sensitive materials used in the gas sensors and the different interaction mechanisms between the gas sensitive materials and the gases,the sensors are classified. The present processing technology of the gas sensors is studied. The developing trend of the gas sensors is introduced emphatically.

Abstract:The method to quickly measure the temperature field of the building by infrared image is studied in this article. A new method for improving the testing result based on information fusion is presented.

Abstract:In order to find the qualification of the optical film theodolite in the daily maintenance, this paper proposes a simple approach to read all the measurement data precisely by scanning the film into bitmap and combining with the image manipulation technology. It emphasizes the method of bilevel image processing and reads the value of undershoot by the correlation method.

Abstract:An auto-measuring system of aerial camera lens' resolution, which uses linear CCD solid state sensor as the detector, instead of the reading microscope is introduced. The principle, the system design and the measuring error of the system are described.

Abstract:The measurement mechanism of the magnetostrictive fuel flow sensor is briefly introduced in this paper. Some problems, which should be consided about structural design especially during applying to the aero field are put forward. The mechanical structure design, especialy the structural disign of the floater, is presented in detail.

Abstract:A precise AC/DC programmable source based on PC/104 bus and digital close loop is introduced. The hardware diagrammatic layout and PID control algorithm are presented in detail. The programmable source is portable. It can be used to test voltage meter and current meter or other electrical device cooperating with other standard device in situ.

Abstract:By the improvement of the examining method of special part measuring tools, the work efficiency is increased to examine, verifying the accuracy of the measure tools between the design and the manufacturing, guaranteeing the quantity of processesing appropriation parts. Comparing with the examining method of traditional special part measuring tools, we put forward to new way of thinking and new method.

Abstract:This paper describes the multifunctional rotary table's mechanical structure and operation principle, furthermore the authors analyse the existed problems and point out the improvement method.

Abstract:The mass is measured according to the substitution weighing method in the verification regulation of weights, and the uncertainty of measurement is evaluated by the uncertainty theory.

Abstract:The error source and effect factors of closed bomb standard equipment of propellant are analyzed in the paper. The combined standard uncertainty and expanded uncertainty of this standard equipment are evaluated.

Abstract:以 Atmel公司的 AT91FR4 0 16 2为例 ,介绍了将公开源代码的嵌入式实时操作系统 μC/ OS-II移植到 ARM微处理器上的主要过程 ,并实现了一个嵌入式 Internet的多任务系统。实践证明 ,该系统具有成本低、便于移植和扩展性强等特点 ,有良好的应用前景

Abstract:A data acquisition system with ALPHA900 modules used in fire control monitor is described as well as the application of the MCGS configuration software package.

Abstract:According to GJB2725A-2001 and elements involved in calibration laboratory work, this paper adopts process method to control continuously quality management system, In order to assure quality management system continually effective.

Abstract:For the sake of adapting the requirement of military equipment development in nowadays, the lab certificate institution will take a further step of military lab certificate system. This paper analyses the purpose, function and certificate rule of military lab, describes the work procedure of military lab certificate and puts forward the work procedure and the key point on how to certificate the lab according to the requirement of national military standard GJB2725A-2001.