微传感器在军事上的应用

本文介绍了传感器、特别是微传感器在军事上的应用及技术发展热点。     

Experimental Study on Effects of Fuel Injection on Scramjet Combustor Performance

In order to investigate the effects of fuel injection distribution on the scramjet combustor performance, there are conducted three sets of test on a hydrocarbon fueled direct-connect scramjet test facility. The results of Test A, whose fuel injection is carried out with injectors located on the top-wall and the bottom-wall, show that the fuel injection with an appropriate close-front and centralized distribution would be of much help to optimize combustor performances. The results of Test B, whose fuel injection is performed at the optimal injection locations found in Test A, with a given equivalence ratio and different injection proportions for each injector, show that this injection mode is of little benefit to improve combustor performances. The results of Test C with a circumferential fuel injection distribution displaies the possibility of ameliorating combustor performance. By analyzing the effects of injection location parameters on combustor performances on the base of the data of Test C, it is clear that the injector location has strong coupled influences on combus- tor performances. In addition, an inner-force synthesis specific impulse is used to reduce the errors caused by the disturbance of fuel supply and working state of air heater while assessing combustor performances.     

某机地面实测载荷谱编制方法研究

结合某机全机载荷谱实测工作，主要从地面实测载荷谱编制的角度论述了地面载荷实测数据的处理、过载谱的编制以及与编谱相关的飞机参数的确定等。     

关于表面温度测试中的几个问题

SomeProblemsonSurfaceTemperatureMeasurementChengYujun表面温度的测试是温度测试的重要组成部分。在科学研究、工业工艺过程（如纺织，冶金，化工等）、环境保护、航空航天技术中，都有大量表面温度测试技术问题，它们在过程控制，质量保证等方面起着重要作用。近年来各国发表了一些有关表面温度测试的论文，说明表面温度测试技术又有新的发展。但是由于表面温度测试技术的特殊性，使其仍然面临许多有待进一步解决的问题：如表面温度计的分度技术；传感器周围环境的影响；传感器在被测表面的敷设对被测面温度场的破坏；传感器的导热、…     

王华明中国著名材料加工专家

M:您与您带领的团队仅用4年时间就突破了飞机钛合金等高性能金属结构件的激光熔化沉积快速成形技术并实现在飞机上的应用,请您谈谈这一成果在航空领域的重大意义.