It's crazy how compact your PIV laser modules are for the power they output. For instance, I would need some 25 overdriven CBT 90 LEDs fiber coupled to a 0.5 mm thick line light optic to get similar results for planar PIV in air. However, I must say LEDs are superior for volumetric PIV as only 4 LEDs are needed for sufficient pulse energies to illuminate a volume of ~10cm x ~5cm x ~2cm volume in air without the hazards associated with lasers (e.g., it's harder to burn down your lab or retinas).
Dear Dr. William Thielicke, may I ask how to set a mask that can change with the shape of the water surface when analyzing a set of images using MATLAB's PIVlab, which are waves? Or is there any other way to remove particles from the upper air during analysis?
Hi, PIVlab 3.0 has a lot of additional automatic masking options. The beta is available here: drive.google.com/file/d/12VyVKYUL3M-f26bRlJJiTVpngYA7cYSB/view?usp=drive_link
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It's crazy how compact your PIV laser modules are for the power they output. For instance, I would need some 25 overdriven CBT 90 LEDs fiber coupled to a 0.5 mm thick line light optic to get similar results for planar PIV in air. However, I must say LEDs are superior for volumetric PIV as only 4 LEDs are needed for sufficient pulse energies to illuminate a volume of ~10cm x ~5cm x ~2cm volume in air without the hazards associated with lasers (e.g., it's harder to burn down your lab or retinas).
Thank you for your reply!
Dear Dr. William Thielicke, may I ask how to set a mask that can change with the shape of the water surface when analyzing a set of images using MATLAB's PIVlab, which are waves? Or is there any other way to remove particles from the upper air during analysis?
Hi, PIVlab 3.0 has a lot of additional automatic masking options. The beta is available here:
drive.google.com/file/d/12VyVKYUL3M-f26bRlJJiTVpngYA7cYSB/view?usp=drive_link
Awesome!
wait,, what...how come 2*3 equals 4 ?
This is a citation from the title song of "Pipi Langstrumpf" , one of my daughters favorite stories.
415 Wisoky Loaf