Abstract:According to the developing general situation of the world aerial CCD camera,the technical performance,technical scheme and realization of the aerial reconnaissance CCD camera system are discussed in this paper.

Abstract:In this paper,the present situation of the site calibration of the aircraft ground measuring and testing system is reviewed and the requirement situation of the site calibration is induced and summarized,including the requirements of traceability,on\|line evaluation requirements,mutiple physical quantities calibration requirements,mutiple characters calibration requirements,automation calibraiton requirements and over\|all evaluation requirements.Begine with the technique,metrological rule and mentality,the difficult points within them are analyzed,including the in\|site calibration multiple quantitiess exciting source,automation calibration,measurability,rules' adaptability,compound dimension characteristics and quality mentality,and the relative countermeasures and suggestions are proposed,including the overall evaluation countermeasures,the disign principle of measurability of in\|site measuring system and the multistage calibration scheme.

Abstract:The precision centrifuge is one of the most important equipment for calibrating accelerometer.In this paper,the components of the newly developed LXJ\|70 precision centrifuge,the designing method of the subsystem,the key technique and its main parformances are presented.

Abstract:A fault diagnosis method of rotary mahcine with noise frequency spectrum is approached.The analogue test of the effect of the static and dynamic frictions on the noise frequency spectrum is presented and the application of this method is approached.

Abstract:This paper introduces the measuring method for the angle of two space turning spindle axises.The error of measurement is analysed also.

Abstract:An automatic dynamic angle testing instrument with high accuracy is presented in this paper.A high rotation precision air static pressure bearing and multiprobe homogenization technique are adopted to the instrument for decreasing the effect of the manufacturing error of the standard.The computer system is adopted to control the measurement procession and the date processing,and to realize the automatic testing.

Abstract:The developing process of the high voltage DC standard power supply is presented in detail.Through accurate controlling the high voltage,accurate measuring the high voltage\|dividing circuit and reasonable designing construction,the DC high voltage standard power supply possesses higher technical performance.

Abstract:As the representative of the most advanced aeroelectronic technique of the active aircrafts,the design complexity of high speed data bus is apparently.How to investgate its whole performance is an very important problem.The network testing software presented in this paper supplies an effective method,then the test and demonstration of the performance of the LTPB network are realized.On one hand,the reasonableness of the design of the software itself is proved,and on other hand,the exactitude of the design and the enforcement of the whole LTPB are proved also.

Abstract:The operating method of verifying high class standard cell with DVM is introduced.And the uncertainty of measurement is analyzed and eveluated.

Abstract:以百分表为例，说明它在测量偏心距时所存在的各种误差并加以量化分析。最后以曲线图的形式表示出测量误差与测角a、工件外径R、偏心距e之间的关系。