APPARATUS FOR MEASURING CONCENTRATION OF AIR-BORNE FIBERS

摘要

Devices (100) and methods for measuring the concentration of airbone fibers are provided. The devices include flow means (5 and 6) for providing laminar flow to a portion of the fibers (20) in an air sample and a light source (9) for generating a light beam (12) directed to the laminarly flowing fibers (20) to produce a scattered light. The device further includes a sensor (14) for sensing a portion of this scattered light and producing an output from which a respirable fiber concentration estimate can be measured.