Digital speckle photography (DSP) is used for velocity field measurements inside a fiber network. The width of the channels in which the flow is measured is typically less than 1 mm. Therefore a microscope is used to image the fiber network. When we sample 30 images/s and separate the moving parts of the images from the stationary parts, the velocity field can be deduced with DSP.
© 2002 Optical Society of America
Original Manuscript: June 12, 2001
Revised Manuscript: October 3, 2001
Published: March 1, 2002
Per Synnergren, Linda Larsson, and T. Staffan Lundström, "Digital speckle photography: visualization of mesoflow through clustered fiber networks," Appl. Opt. 41, 1368-1373 (2002)