Optical doppler effect is in the category of optical has wide application prospect of one of the branch.Photonic doppler velocimeter because choose laser as the light source, has some characteristics of the laser, it is also a speedometer strengths, made from precision to time and space are raised to an order of magnitude, the resolution of the science of check methods of each category is little not.According to the market investigation, the project has a lot of stores in many categories.In the transportation category, can use its measurement speed of the car, in metallurgical category, can use the length measurement of the speed of the billet and the steel tube and automatic production lines, domestic large steel mills is a big need for photonic doppler velocimeter, according to research, tianjin seamless steel tube company, anshan now are using imported laser doppler velocimeter, if its localization, will save a lot of foreign exchange to the nation, the invention outstanding economic benefits. |