Crop moisture detection in a combine harvester

A combine harvester for harvesting crop, the combine harvester comprising:

• a header to cut crop;
• a feeder house including an inlet, connected to the header, and an outlet, the feeder house defining an interior and an exterior located outside the feeder house;
• a drum and a concave disposed within the feeder house, the concave disposed adjacently to the drum,
• a threshing unit operatively connected to the outlet of the feeder house;
• a sensor assembly comprising a sensor housing connected to the feeder house, a first sensor, and a second sensor, the first sensor and the second sensor positioned within the sensor housing, the first sensor positioned to output an exterior relative humidity value or both of the exterior relative humidity value and an exterior temperature value for the exterior defined by the feeder house, the second sensor positioned to output an interior relative humidity value or both of the interior relative humidity value and an interior temperature value for the interior defined by the feeder house;
• and
• a controller operatively connected to the sensor assemblies assembly, wherein the controller receives the outputs from each of the first sensor and the second sensor.

A method of modifying the operation of a combine harvester while harvesting crop from a field comprising:

• threshing cut crop as the combine harvester moves through the field;
• identifying, from an information outputted by a first sensor and a second sensor housed within a sensor housing that is mounted to a feeder house of the combine harvester, a relative humidity value or both of a relative humidity value and a temperature value in both an interior and an exterior that are defined by the feeder house;
• adjusting one or more of a plurality of machine operations including:
• i) a threshing speed of the combine harvester;
• ii) a concave clearance of a concave of the combine harvester;
• iii) a fan speed of a fan of the combine harvester;
• and iv) a forward speed of the combine harvester based on the determined relative humidity value or both of the relative humidity value and temperature value in the feeder house.