| 摘要 |
A system for measurement of pressure drop through a perforated panel having panel holes includes a sensor comprising an illumination source adapted to illuminate the perforated panel, a lens spaced-apart with respect to the illumination source and a camera interfacing with the lens. A controller is connected to the camera and adapted to receive image frames of the panel openings from the camera, measure an optical porosity of the perforated panel, identify a number and locations of missing and blocked panel holes in the perforated panel, determine a shape of a small region associated with each panel hole and calculate a pressure drop through the perforated panel based on the optical porosity of the perforated panel, the number and locations of the missing and blocked panel holes and the shape of the small region associated with each panel hole.
|
