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    • Vis-NIR equipped soil penetrometer 

      Morgan, Cristine; Ge, Yuefeng; Brown, David; Bricklemyer, Ross (United States. Patent and Trademark OfficeTexas A&M University. Libraries, 2019-07-02)
      Soil penetrometers capable of measuring soil reflectance along the direction of insertion of the penetrometer are provided. The penetrometer can house an array of sensors, such as, for example, a Vis-NIR reflectance sensor, ...