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v7.2
Sensors probes
4.6. Solar radiation sensor probe for Smart Agriculture
Xtreme (Apogee SQ-110)
Photosynthetically active radiation (PAR) is the radiation that drives photosynthesis and is typically defined as
total radiation across a range from 400 to 700 nm. PAR is often expressed as photosynthetic photon flux density
(PPFD): photon flux in units of micromoles per square meter per second (μmol·m
-2
s
-1
).
Figure: Solar radiation sensor probe for Smart Agriculture Xtreme (Apogee SQ-110)
Figure: Graph of the spectral response of the PAR sensor (Apogee SQ-110) compared to the photosynthetic response of a plant