CROPSCAN, Inc.

Calibration Cards

Last update - 6/12/2006

A picture of the white Spectralon calibration reference panel along with other colored panels used for calibration check readings is shown below. Each panel is approximately 12 inches (30 cm) square. The calibration and check readings are made at a 45 degree sunangle and the radiometer is held perpendicular to the cards at about 10 inches (25 cm) above them. From left to right, top to bottom they are:

Spectralon, Barium Sulfate, Red
Green, Blue, Gray
Black

Typical spectral readings (45 degree sunangle) from the cards are:

CROPSCAN, Inc.
1932 Viola Heights Lane NE
Rochester, MN 55906 USA
Phone: (507)285-9230
Email: Cropscan@compuserve.com
URL: http://www.cropscan.com