Next Article in Journal
Fault Diagnosis of Internal Combustion Engine Valve Clearance Using the Impact Commencement Detection Method
Previous Article in Journal
Performance Analysis of a Novel Hybrid S-ALOHA/TDMA Protocol for Beta Distributed Massive MTC Access
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(12), 2915;

Response Characterization of an Inexpensive Aerosol Sensor

Finnish Meteorological Institue, Erik Palmenin aukio 1, FIN-00560 Helsinki, Finland
Author to whom correspondence should be addressed.
Received: 15 November 2017 / Revised: 7 December 2017 / Accepted: 12 December 2017 / Published: 15 December 2017
(This article belongs to the Section Chemical Sensors)
Full-Text   |   PDF [3980 KB, uploaded 15 December 2017]   |  


Inexpensive aerosol sensors have been considered as a complementary option to address the issue of expensive but low spatial coverage air quality monitoring networks. However, the accuracy and response characteristics of these sensors is poorly documented. In this study, inexpensive Shinyei PPD42NS and PPD60PV sensors were evaluated using a novel laboratory evaluation method. A continuously changing monodisperse size distribution of particles was generated using a Vibrating Orifice Aerosol Generator. Furthermore, the laboratory results were validated in a field experiment. The laboratory tests showed that both of the sensors responded to particulate mass (PM) concentration stimulus, rather than number concentration. The highest detection efficiency for the PPD42NS was within particle size range of 2.5–4 µm, and the respective optimal size range for the PPD60PV was 0.7–1 µm. The field test yielded high PM correlations (R2 = 0.962 and R2 = 0.986) for viable detection ranges of 1.6–5 and 0.3–1.6 µm, when compared to a medium cost optical dust monitor. As the size distribution of atmospheric particles tends to be bimodal, it is likely that indicatively valid results could be obtained for the PM10–2.5 size fraction (particulate mass in size range 2.5–10 µm) with the PPD42NS sensor. Respectively, the PPD60PV could possibly be used to measure the PM2.5 size fraction (particulate mass in size below 2.5 µm). View Full-Text
Keywords: inexpensive aerosol sensor; novel evaluation method; particulate matter inexpensive aerosol sensor; novel evaluation method; particulate matter

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material


Share & Cite This Article

MDPI and ACS Style

Kuula, J.; Mäkelä, T.; Hillamo, R.; Timonen, H. Response Characterization of an Inexpensive Aerosol Sensor. Sensors 2017, 17, 2915.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top