CONTAINER MONITORING APPARATUS

摘要

An apparatus to acoustically monitor a container includes a first acoustic transducer mountable to an exterior of the container to send a first acoustic signal into an interior of the container and a second acoustic transducer mountable to the exterior of the container to send a second acoustic signal into the interior of the container. The apparatus further includes a data processing unit to process a first acoustic response signal related to the first acoustic signal and a second acoustic response signal related to the second acoustic signal to determine contents within the interior of the container at locations of the first acoustic transducer and the second acoustic transducer.