US Patent 10989833 Systems and methods for monitoring grain loss

A sensor apparatus is provided for a grain loss monitoring system associated with an agricultural material. The sensor apparatus includes a housing with a first wall including a transparent panel. The sensor apparatus includes at least one acoustic sensor arranged within the interior and configured to collect an acoustic data stream of vibrations associated with the agricultural material striking the transparent panel; and at least one optical sensor arranged within the interior and configured to collect an image data stream of images of the agricultural material through the transparent panel. The at least one acoustic sensor is configured to provide the acoustic data stream and the at least one optical sensor is configured to provide the image data stream such that a verified grain count is determined based on the acoustic data stream and the image data stream.