Optics: measuring and testing – Photometers – Photoelectric
Patent
1987-03-02
1988-10-25
Rosenberger, R. A.
Optics: measuring and testing
Photometers
Photoelectric
G01J 328
Patent
active
047799803
ABSTRACT:
An atmospheric optical calibration system is provided to compare actual atmospheric optical conditions to standard atmospheric optical conditions on the basis of aerosol optical depth, relative air mass, and diffuse horizontal skylight to global horizontal photon flux ratio. An indicator can show the extent to which the actual conditions vary from standard conditions. Aerosol scattering and absorption properties, diffuse horizontal skylight to global horizontal photon flux ratio, and precipitable water vapor determined on a real-time basis for optical and pressure measurements are also used to generate a computer spectral model and for correcting actual performance response of a photovoltaic device to standard atmospheric optical condition response on a real-time basis as the device is being tested in actual outdoor conditions.
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Cannon Theodore W.
Hulstrom Roland L.
Clausen Terry
McGowan S.
Midwest Research Institute
Richardson Ken
Rosenberger R. A.
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