Abstract: Apparatus for a cotton sampling system. The system includes a first station that provides a stream of samples to a main conveyor. The main conveyor routes the samples to a testing station that includes a sub-sampler, an automated cotton containment mechanism, an indexer, and an HVI. The conveyors include a shroud that moves samples over and under the conveyor. In this way samples that need to be retested pass to the testing station after failing the first test. The sub-sampler includes a walking beam mechanism to advance the samples into a fiber extraction mechanism. The automated cotton containment mechanism includes a gate valve and a diverter valve. The gate valve has a normal position configured to allow passage of cotton fibers, but blocking clumps. Upon detection of a clump, the diverter valve operates and the gate valve opens so that the clump is diverted to a waste receptacle.

Abstract: A fiber testing station. Electrically conductive first fiber retaining means engage first ends of fibers, where the fibers extend in substantially one direction from the first fiber retaining means to distal second ends of the retained fibers. The first fiber retaining means are electrically isolated from the fiber testing station. First length measurement means measure first relaxed lengths of the retained fibers between the first fiber retaining means and the second ends of the retained fibers. Electrically conductive second fiber retaining means engage the second ends of the retained fibers. The second fiber retaining means are electrically isolated from the fiber testing station. Moisture measurement means take electrical measurements along the retained fibers between the first fiber retaining means and the second fiber retaining means, and thereby determine a moisture content of the retained fibers.