Results 261 to 270 of about 53,616 (283)
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A Computer Based Spectroradiometer System
Applied Optics, 1970A spectroradiometer system is described which is designed to make measurements of the spectral energy-distribution of light sources over the 0.25-2.5-micro wavelength range. A review is presented of some of the major experimental problems encountered in radiometry, in conjunction with the approach employed here to meet these problems.
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A Recording Photoelectric Spectroradiometer
Journal of the Optical Society of America, 1938A recording spectroradiometer has been constructed for use in absorption spectra measurements in the visible and near infra-red regions. A Hilger quartz monochromator and an emission type photoelectric cell are used. The photoelectric cell current is amplified by a d.c.
V. M. Albers, H. V. Knorr
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Field calibration unit for ultraviolet spectroradiometers
Applied Optics, 1998Horizontal standard lamps calibrate the spectral irradiance responsivity of spectroradiometers that measure solar ultraviolet irradiance. A field calibration unit and power supply developed to meet the requirements for using these standards in the field are described and their operation and associated uncertainties are detailed.
E A, Early, E A, Thompson, P, Disterhoft
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PORTABLE SPECTRORADIOMETER FOR UNDERWATER ENVIRONMENTS1,2
Limnology and Oceanography, 1972A battery‐powered spectroradiometer is described which can be operated either manually or automatically in remote field applications. The probe can be easily maneuvered into restricted environments. The incident spectrum is determined by measuring successively through 16 interference filters transmitting in narrow wavebands from 401–698 nm.
A. H. BURR, M. J. DUNCAN
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Continuously Recording Spectroradiometer*
Journal of the Optical Society of America, 1958A spectroradiometer is described for recording the spectral distribution of daylight or of any artificial light source that radiates steadily for 3.5 min. Beams from the external source and from an internal standard lamp are deviated alternately through a monochromator to a multiplier phototube.
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Journal of Scientific Instruments, 1963
A spectroradiometer for the measurement of spectral irradiance (in μw cm-2 (3 nm)-1) in the wavelength range 420 nm to 1100 nm is described. It has an entrant system, consisting of an integrating sphere with a conical baffle inside, for obtaining good cosine response.
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A spectroradiometer for the measurement of spectral irradiance (in μw cm-2 (3 nm)-1) in the wavelength range 420 nm to 1100 nm is described. It has an entrant system, consisting of an integrating sphere with a conical baffle inside, for obtaining good cosine response.
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A new imaging FTIR spectroradiometer
SPIE Proceedings, 2009ABB Bomem is expanding its line of infrared remote sensing products with the addition of a new imaging spectroradiometer. That hyperspectral instrument is based on the proven MR FTIR spectroradiometers. This field instrument, called the MR-i, is a fast imaging Fourier Transform spectroradiometer. It generates spectral data cubes in the MWIR and LWIR.
Louis Moreau +4 more
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Development of a broadband spectroradiometer
2008 33rd IEEE Photovolatic Specialists Conference, 2008Spectral measurements of the solar radiation at the Earth's surface are important for meteorological, environmental, photovoltaic, and biomass study etc. Especially a long-term measurements and in-situ measurements are valid and efficient methods. Two types of spectroradiometers were developed for making those measurements in all weather conditions ...
null Tadashi Kato +3 more
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Calibration of a Field Spectroradiometer
Optical Engineering, 1973The processes used to calibrate a field spectroradiometer are described. The spectro-radiometer uses four CVF's and four detectors with two of each in two separate instruments. Wavelength calibration procedure was to illuminate the aperture of the spectroradiometer with energy containing spectral lines at known wavelengths, and to note the linearity of
Ross W. Leamer, Anthony J. La Rocca
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EOS Multiangle Imaging Spectroradiometer
SPIE Proceedings, 1990The Multi-angle Imaging SpectroRadiometer (MISR) experiment is an Instrument Investigation in the planning stages for the first NASA Earth Observing System polar platform, EOS-A. MISR will routinely acquire multispectral images of the angular reflectance signatures of terrestrial scenes.
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