Abstract

A novel technique for measuring two-dimensional flow field has been developed. It cans measure the vector field by capturing only one frame of picture of flow field and cross-correlation method The technique employer rather simple equipment compare with common PIV techniques, which normally need pulse laser to capture two frame of pictures^[1]. The experimental apparatus (1 mw He-Ne laser and common CCD camera) as shown in this paper is currently suitable to measure a certain range of velocity of flow. The range of measured velocity is from 0.007 to 3m/s, and measured area 16 × 12mm, which could be expanded while using more power of laser.

© 2000 IEEE