Journal
SENSORS
Volume 21, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/s21175845
Keywords
calibration; low-cost sensors; air quality; particulate matter
Funding
- Jagiellonian University
- Faculty of Physics, Astronomy and Applied Computer Science of the Jagiellonian University in Krakow
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The paper introduced a calibration system for low-cost PM sensors developed and used at Jagiellonian University in Krakow, Poland, which is capable of generating stable and repeatable concentrations of suspended PM.
This paper presents a calibration system for low-cost suspended particulate matter (PM) sensors, consisting of reference instruments, enclosed space in a metal pipe (volume 0.145 m(3)), a duct fan, a controller and automated control software. The described system is capable of generating stable and repeatable concentrations of suspended PM in the air duct. In this paper, as the final result, we presented the process and effects of calibration of two low-cost air pollution stations-university measuring stations (UMS)-developed and used in the scientific project known as Storm&DustNet, implemented at the Jagiellonian University in Krakow (Poland), for the concentration range of PM from a few up to 240 mu g center dot m(-3). Finally, we postulate that a device of this type should be available for every system composed of a large number of low-cost PM sensors.
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