Grain dryer output capacitive moisture sensing assembly and related methods

Abstract

A main discharge channel can carry a main portion of the grain output from a grain dryer during operation of the grain dryer. A sensor channel positioned adjacent the main discharge channel can carry a sensed portion of the grain output from the grain dryer during operation of the grain dryer. A grain moisture sensor can include a pair of capacitive plates positioned on opposite sides of the sensor channel with opposing major surfaces of the pair of capacitive plates facing each other. A moisture sensing electric field can be generated between a main sub-plate of a plurality of sub-plates of each of a pair of capacitive plates positioned on opposite sides of a sensor channel with opposing major surfaces of the pair of capacitive plates facing each other. At least one additional electric field can be generated between the plurality of sub-plates of the pair of capacitive plates.