Accession Number : ADA288750

Title :   Field-Portable Reflectance Spectrometer.

Descriptive Note : Final rept.,

Corporate Author : ANALYTICAL SPECTRAL DEVICES INC BOULDER CO

Personal Author(s) : Curtiss, Brian ; Goetz, Alexander F.

PDF Url : ADA288750

Report Date : 05 DEC 1994

Pagination or Media Count : 33

Abstract : This study resulted in a design for an array detector based field spectroradiometer to be used for measurement of transmission and reflectance of man-made and natural materials using ambient solar illumination. This design is a significant advancement over currently available instrumentation. The design characteristics are: wavelength range from 0.35-2.5 micrometers spectral resolution of 4 nm (0.35-900 micrometers), 10 nm (0.9-2.5 micrometers); weight 15 pounds, exclusive of batteries; a minimum signal-to-noise ratio of 500:1 at 2200 nm under typical solar illumination; simultaneous acquisition of all wavelengths; operates at temperatures as low as -20 deg C; and, maintains radiometric calibration under field conditions. During Phase I a prototype was fabricated to test and validate this design. Government agencies using image data from high spectral resolution sensors will benefit. Additional applications include mineral resource evaluation, analytical chemistry and commercial remote sensing.

Descriptors :   *PORTABLE EQUIPMENT, *REFLECTANCE, *FIELD EQUIPMENT, *SPECTROMETERS, TEST AND EVALUATION, FREQUENCY, MEASUREMENT, COMMERCE, DETECTORS, ACQUISITION, MATERIALS, COMPOSITE MATERIALS, SIGNAL TO NOISE RATIO, ARRAYS, ILLUMINATION, HIGH RESOLUTION, TRANSMITTANCE, SPECTRA, SOLAR ENERGY, IMAGES, REMOTE DETECTORS, MANMADE, RESOURCES, CALIBRATION, SYNCHRONISM, RADIOMETRY, ANALYTICAL CHEMISTRY, FIELD CONDITIONS, MINERALS.

Subject Categories : Radiation and Nuclear Chemistry
      Nuclear Instrumentation
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE