A sensor for measuring photosynthetically active radiation was constructed using a silicon photocell in combination with a glass absorption filter. A trimmer potentiometer was used for standardization of sensor output. The sensors were calibrated using a commercially available quantum sensor. Average correlation coefficient between constructed sensors and the standard was 0.94. The sensors had a quantum response, were sensitive only in the wavelengths between 400 and 700 nm, exhibited a linear response to varying PAR light levels, and were inexpensive to construct.
Corelli Grappadelli, L., Coston, D.c. (1988). A photosynthetically active radiation sensor. HORTSCIENCE, 23(1), 215-217 [10.21273/HORTSCI.23.1.215].
A photosynthetically active radiation sensor
Corelli GRAPPADELLI, LPrimo
Writing – Original Draft Preparation
;
1988
Abstract
A sensor for measuring photosynthetically active radiation was constructed using a silicon photocell in combination with a glass absorption filter. A trimmer potentiometer was used for standardization of sensor output. The sensors were calibrated using a commercially available quantum sensor. Average correlation coefficient between constructed sensors and the standard was 0.94. The sensors had a quantum response, were sensitive only in the wavelengths between 400 and 700 nm, exhibited a linear response to varying PAR light levels, and were inexpensive to construct.| File | Dimensione | Formato | |
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HORTSCI_1988_PAR sensor CORELLI e Coston.pdf
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