摘要
激光多普勒水流速仪是一种非接触、高精度的测量仪器,但由于技术和集成度等原因还仅限于研究所和高校使用。文中介绍了一种双光束一双散射法测量流体速度,利用此种光路测量法可以提高集成度、促进激光技术的普及;还可以解决常规测量法难以解决的问题,例如风洞的风速测量等。通过实验验证了这种方法的可行性。
Laser Doppler velocimeter is a non-contact, high-precision measuring instruments, but due to technical reasons and density of integration, the use of it was limited to the research institutes and universities. This paper introduces a measurement of water velocity based on dual-beam and double scattering, we can increase integration and promote the popularity of laser technology in this way, and we can solve some difficult problems which can＇t solve through conventional method, such as anemometry in the wind tunnel. Feasibility of this method was validated experimentally.
出处
《光学仪器》
2009年第3期5-7,共3页
Optical Instruments
关键词
激光
多普勒频移
条纹
非接触
水流速
laser
Doppler frequency excursion
stripe
non-contact
water velocity
