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| Titel |
Measuring NO, NO2, CO2 and O3 with low-cost sensors |
| VerfasserIn |
Michael Müller, Peter Graf, Christoph Hüglin |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250148246
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| Publikation (Nr.) |
 EGU/EGU2017-12484.pdf |
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| Zusammenfassung |
| Inexpensive sensors measuring ambient gas concentrations can be integrated in sensor units
forming dense sensor networks. The utilized sensors have to be sufficiently accurate as the
value of such networks directly depends on the information they provide. Thus,
thorough testing of sensors before bringing them into service and the application of
effective strategies for performance monitoring and adjustments during service are
key elements for operating the low-cost sensors that are currently available on the
market.
We integrated several types of low-cost sensors into sensor units (Alphasense NO2
B4/B42F/B43F, Alphasense NO B4, SensAir CO2 LP8, Aeroqual O3 SM50), run them in the
field next to instruments of air quality monitoring stations and performed tests in the
laboratory.
The poster summarizes our findings regarding the achieved sensor accuracy, methods to
improve sensor performance as well as strategies to monitor the current state of the sensor
(drifts, sensitivity) within a sensor network. |
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