Difference between revisions of "Working principle"
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{{Note|This page is preserved from the original bcMeter documentation. For the current introduction, see [[Introduction]].}} | |||
[[File:Working principle of a bcMeter.png|300px|left]] | [[File:Working principle of a bcMeter.png|300px|left]] | ||
== How does the bcMeter work? == | == How does the bcMeter work? == | ||
# Polluted air passing through filter paper | # Polluted air passing through filter paper | ||
# Filter paper absorbs black carbon (BC) | # Filter paper absorbs black carbon (BC) | ||
# Sensor measures attenuation of LED shining at 880nm through filter paper (and bias of environmental light changes) | # Sensor measures attenuation of LED shining at 880nm through filter paper (and bias of environmental light changes) | ||
# Data is evaluated | # Data is evaluated and saved as .csv | ||
# Data is displayed in web browser | # Data is displayed in web browser | ||
<br clear="all"/> | |||
For comprehensive documentation of the measurement principle, sensors, and capabilities, see [[Introduction]]. | |||
Latest revision as of 14:10, 8 March 2026
How does the bcMeter work?
- Polluted air passing through filter paper
- Filter paper absorbs black carbon (BC)
- Sensor measures attenuation of LED shining at 880nm through filter paper (and bias of environmental light changes)
- Data is evaluated and saved as .csv
- Data is displayed in web browser
For comprehensive documentation of the measurement principle, sensors, and capabilities, see Introduction.