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Table 1 Experiment setup

From: Reference-free digital shadowgraphy using a moving BOS background

ValueMeaning
22F# for depth of field purposes
\(f=200\,\hbox {mm}\)Lens focal length
24 HzImage frequency
\(140^\circ \)Temperature of heated air jet
Veo 640LCamera
\(2560 \times 1600\) pxCamera resolution
800 µsCamera framing time
\(z_A=1440\,\hbox {mm}\)Camera-object distance
\(z_D=880\,\hbox {mm}\)Object-background distance
9.4 px/mmCamera resolution
1.25 mm/12 pxMinimum resolvable object due to unsharpness
8 pxBackground movement between images