Automatically Measuring System On Laser Scattering Based On Virtual Instrument Technology

With the development of science and technology, the requirement on measurement technology is getting more and more important. The application of electronic measurement technology has extended to more fields than before. Because of limited functions and big size, traditional electronic measuring equipments are no longer suitable to common purposes. The rapid development of integrated circuit and computer technology gives birth to a new kind of instrument, Virtual Instrument (VI). Compared with traditional equipment, VI characterizes with more functions, higher processing speed, wider bandwidth, friendlier interface, small size and better expandability. It is based on PC platform, which not only make it convenient to use the software and hardware resources of PC but also get the ability of data processing flexible. A measure system can be easily builded for various requirements by VI.In the study of target laser scattering characteristics, all kinds of scaling systems on laser scattering have been founded by many domestic and overseas scholars. In this paper, based on the study of target laser scattering characteristics, the establishing process of the automatically measuring system on laser scattering is introduced. This paper elaborates on virtual instrument, discusses the bus technology of virtual instrument systemicly, and introduces the theory of virtual instrument into scaling systems on laser scattering. The article strongly introduces LabVIEW and studies the methods of building virtual instrument and processing signal.