Apogee SQ-212 Owner's Manual - Page 7

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Spectral Response

Temperature Response

Mean spectral response of six SQ series quantum

sensors (error bars represent two standard

deviations above and below mean) compared to

PPFD weighting function. Spectral response

measurements were made at 10 nm increments

across a wavelength range of 300 to 800 nm in a

monochromator with an attached electric light

source. Measured spectral data from each

quantum sensor were normalized by the

measured spectral response of the

monochromator/electric light combination,

which was measured with a spectroradiometer.

Mean temperature response of eight SQ series

quantum sensors (errors bars represent two

standard deviations above and below mean).

Temperature response measurements were

made at 10 C intervals across a temperature

range of approximately -10 to 40 C in a

temperature controlled chamber under a fixed,

broad spectrum, electric lamp. At each

temperature set point, a spectroradiometer was

used to measure light intensity from the lamp

and all quantum sensors were compared to the

spectroradiometer. The spectroradiometer was

mounted external to the temperature control

chamber and remained at room temperature

during the experiment.