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颗粒测试是颗粒学的一个重要组成部分,它包括颗粒的物理性能、化学性能和几何性能的测量。几何性能又包括粒度、表面积和孔径。这里只谈粒度测试工作,并且对于具体测试方法不作分析,所谈两个问题可能是大家都感兴趣的问题。一、我国粒度测试工作现状国际上粒度测试发展很快,特别是七十年代以后,由于采用新原理,新技术和新的操作方法,粒度测试技术越来越向高、精、尖发展。应用新原理的如:液相色谱法、微波测量法、光导纤维探测法、扩散法、静电离子捕集法等;有些看起来是老方法,但由于采用新技术和新的操作方法,方法有了新发展,如引入激光技术之后,激光衍射仪、全息照相,多普勒测速仪、光遮仪,光相关法等相继出现。由于微机的引入,使许多粒度仪器测试方便多了,而且仪器的体积也越来越小。
Particle testing is an important part of particle science, which includes the physical, chemical, and geometrical properties of particles. Geometrical properties include particle size, surface area and pore size. Here only to talk about the granularity of the test work, and for the specific test methods are not analyzed, the two issues discussed may be everyone is interested in the problem. First, the current situation of China’s particle size testing International particle size testing developed rapidly, especially after the seventies, due to the introduction of new principles, new technologies and new methods of operation, particle size testing technology is increasingly high, refined, sharp development. Applications of new principles such as: liquid chromatography, microwave measurement, optical fiber detection, diffusion, electrostatic ion capture, etc .; some may appear to be the old method, but due to the introduction of new technologies and new methods of operation, the method has The new development, such as the introduction of laser technology, laser diffraction, holography, Doppler velocimetry, optical obscuration, light correlation and so on have appeared. Due to the introduction of microcomputer, many particle size instrument testing more convenient, but the size of the instrument is getting smaller and smaller.