| 摘要 |
An apparatus removes soil samples at intervals over a field of interest. The apparatus comprises a sampling assembly ( 60 ) that rotates on a track ( 32 ) riding on a plurality of idler wheels ( 29, 31 ). A probe ( 66 ) extends and retracts under the action of a scissored frame assembly ( 70 ), mechanically manipulated by passage of the scissored frame assembly ( 70 ) along a guide assembly ( 108 ). The probe ( 66 ) is extended into the ground and retracted on each revolution. An ejector ( 68 ) pushes soil from the probe ( 66 ) as it passes over a hopper ( 88 ) to retain the cores. The cores are pneumatically transferred from the hopper ( 88 ) to a plurality of sample collection containers ( 126 ). An electronic control system uses GPS location information to deposit collected cores in the appropriate container ( 126 ) based upon the current location of the apparatus in the field of interest.
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