Measurement of Fine/Ultrafine Dust Using Lenticular Fiber-Based Particulate Measurement Devices

Measurement of particulate matter (PM), i.e., fine/ultrafine dust, is important for monitoring our surrounding environment. We demonstrate the fabrication of lenticular fiber-based fine/ultrafine dust measurement devices for monitoring the density and size of dust. The plano-convex lenticular fibers...

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Bibliographic Details
Published in:IEEE sensors journal 2023-04, Vol.23 (8), p.8400-8409
Main Authors: Sohn, Ik-Bu, Choi, Hun-Kook, Jung, Young-Jun, Lee, Chang-Jun, Oh, Myoung-Kyu, Ahsan, Md. Shamim
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon dioxide lasers
Density measurement
Devices
Dust
Fiber lasers
Light emitting diodes
Light sources
Measuring instruments
Monitoring
Optical fibers
Particulate emissions
Particulates
Semiconductor lasers
Ultrafines
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Summary:Measurement of particulate matter (PM), i.e., fine/ultrafine dust, is important for monitoring our surrounding environment. We demonstrate the fabrication of lenticular fiber-based fine/ultrafine dust measurement devices for monitoring the density and size of dust. The plano-convex lenticular fibers were fabricated by the CO2 laser polishing technique. The optical lens, used in the conventional light scattering-based fine/ultrafine dust measurement devices, was replaced by a plano-convex lenticular optical fiber to reduce the size and complexity of the dust measurement device. We utilized a light-emitting diode as the light source of the fine/ultrafine dust density measurement device. The fabricated device could indicate the dust density level (good, normal, bad, and very bad) according to the Korean standard. To estimate the size of the dust particulates, we fabricated a dust size measurement device that consists of a compact laser diode, a lenticular fiber, and a photodetector. We are successful in estimating the size of both fine and ultrafine PMs by detecting the power of the scattered light coming from the dust particulates. The dust size down to [Formula Omitted] was detected using our dust measurement device. Our proposed dust measurement devices are simple, small, and cost-effective and can be considered as a candidate for portable applications.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2023.3251367