Reflectance/Transmittance (RT) Sphere for Leaf Stress Analysis
Spectral Evolution’s reflectance/transmittance (RT) sphere can be used to measure
the reflectance, transmittance and absorption of leaf samples so that researchers can
have a better understanding of leaf characteristrics, red edge shift and plant stress.
Connected to our PSR+ high resolution/high sensitivity full range spectroradiometer,
the RT sphere can measure an increase in reflectance and transmittance and
decrease in absorption in the 695 - 725nm range. This provides an indication of how
well a plant is responding to stress from lack of water, surplus of water, over
fertilization, disease, insect infestation or many other stress related conditions.
The RT sphere can be used with both leaf and needle samples for specular inbcluded
or excluded reflectance measurement, measurement of forward and back scattering,
and transmittance measurement. The sphere is portable and can be used wtih an
included stand or any common tripods.
The RT sphere can be connected to
any of our portable spectroradiometers,
including the PSR+ field spectroradiometer with
a range of 250-2500nm. Detailed information about
vegetation spectral features such as comparison of
chlorophyll concentration in leaves with red edge
characteristics can be collected.
1 Canal Street ◊ Unit B1
Lawrence, MA 01840 USA
Tel: 978 687-1833 ◊ Fax: 978 945-0372
Copyright © 2012 Spectral Evolution, Inc
Our RT Sphere works with our high resolution,
portable NIR spectroradiometers to measure
reflectance, transmittance, and absorption. It is
lightweight and portable for use anywhere.
Hydrangea leaf reflectance measurement above, Hydrangea
leaf transmittance spectra below