1 The Approaches and Development of the Micro Flow Measurement

胡纯 , 樊尚春 , 郑德智

2015, 35(1). DOI: 10.11823/j.issn.1674-5795.2015.01.01

[Abstract](908) [HTML](118) [PDF 2.88 M](502)

Abstract:
This paper summarizes the structures and performance parameters of various Micro flow sensors based on MEMS technology. The possible development direction of micro flow measurement technique is inferred according to international popular research, which is the combination of two or more approaches with complementary advantages, aiming to improve the measurement accuracy and expand the range ratio. Finally, the integrated method of Coriolis effect and pressure loss effect is proposed based on existing technology. The operating principle and theoretical basis of the sensor are described to verify the feasibility of the approach.

2 High Gas Temperature Measuring Technology Based on CARS

赵俭

2015, 35(2). DOI: 10.11823/j.issn.1674-5795.2015.02.01

[Abstract](892) [HTML](128) [PDF 781.26 K](513)

Abstract:
The principle of CARS temperature measurement and the research progress at home and abroad are introduced in this paper. Advantages and disadvantages of some technology branches are analyzed. It is hoped that this technology can be developed and applied better in national defence science and technology fields, in order to solve problems of high temperature measurement.

3 Development of Dynamic Metrology in Europe

杨军 , 梁志国 , 燕虎 , 尹肖 , 李博

2015, 35(3). DOI: 10.11823/j.issn.1674-5795.2015.03.01

[Abstract](1130) [HTML](243) [PDF 2.37 M](740)

Abstract:
从20世纪末开始, 在欧洲区域计量组织( EURAMET)的支持下, 欧洲各国以国家计量机构为主, 加大了对动态计量技术的研究力度, 尤其是可溯源动态力学量、高精度运动参数等机械量的动态计量技术研究, 以及不确定度评估、动态建模、动态测量放大器校准等共性技术研究, 成为国际动态计量技术研究的新的热点区域. 通过深入的联合研究、广泛的国际学术交流、领导或参与各种国际计量组织并制定各种国际计量标准, 以PTB, LNE, NPL为首的欧洲计量研究机构在国际动态计量技术发展中展现出强大的影响力和领导力. 相关技术方向和组织管理方式对于我国动态计量技术发展具有重要的借鉴作用.