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Theoretical algorithm and application of a double-integrating sphere system for measuring leaf transmittance and reflectance spectra
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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9
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Applied Optics, Volume 56, issue 3, pp. 563-571
Abstract
We present the theoretical background and analytical equations for calculating spectral reflectance and transmittance factors for plant leaves from data collected by a field spectroradiometer attached to a double-integrating sphere. The sphere constants required for the calculations are derived from measurements of an empty sample port and a diffuse reflectance panel. The new method is applied in measuring the spectra of leaves belonging to 13 tree species. The greatest advantages of a double-sphere system compared with the conventional single-sphere substitution method is the speed of measurements, ease of operation, and increased portability and field-ruggedness.
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Mõttus, M, Hovi, A & Rautiainen, M 2017, 'Theoretical algorithm and application of a double-integrating sphere system for measuring leaf transmittance and reflectance spectra', Applied Optics, vol. 56, no. 3, pp. 563-571. https://doi.org/10.1364/AO.56.000563