Abstract: A device includes a microphone, a sensor that generates a first signal that is indicative of an orientation of the microphone, and a processor. The processor uses the first signal to determine if the microphone is in a predetermined orientation. Further, the processor, responsive to determining that the microphone is not in the predetermined orientation, generates a second signal that is used to provide a notification that the microphone is not in the predetermined orientation.

Abstract: A yield monitoring system for a grain harvester includes a large strike plate mounted on parallel four bar linkages. The strike plate intercepts a larger portion of the clean grain flow and is supported near the four corners to provide even translation and force transmission even if not struck in the center of the plate. The four bar linkages provide translational movement relative to a center load cell. An engagement bracket at the center of the strike plate includes a surface that is aligned perpendicularly to the sensing element of the load cell.

Abstract: A device includes a microphone, a sensor that generates a first signal that is indicative of an orientation of the microphone, and a processor. The processor uses the first signal to determine if the microphone is in a predetermined orientation. Further, the processor, responsive to determining that the microphone is not in the predetermined orientation, generates a second signal that is used to provide a notification that the microphone is not in the predetermined orientation.

Abstract: A yield monitoring system for a grain harvester includes a large strike plate mounted on parallel four bar linkages. The strike plate intercepts a larger portion of the clean grain flow and is supported near the four corners to provide even translation and force transmission even if not struck in the center of the plate. The four bar linkages provide translational movement relative to a center load cell. An engagement bracket at the center of the strike plate includes a surface that is aligned perpendicularly to the sensing element of the load cell.

Abstract: An improved sensor for detecting vibrations uses a flexible moving beam supported by two flexible leg members. The flexible moving beam can be moved in two directions. A protrusion extends from near one end of the flexible moving beam. The protrusion is placed against a transducer element 22 which is against a rest element 24 . When the moving beam is moved parallel to its length, the protrusion is pushed against the transducer element 22 and against the rest element 24, thereby generating electrical signals. When the moving beam detects vibrations in a direction perpendicular to its length, the protrusion is rotated upward and outward and pushes against the transducer element 22, causing the generation of electrical signal. The improved sensor is particularly adapted for detecting vibrations from a stringed musical instrument.

Abstract: A digital control system is provided for positioning a tool relative to a workpiece. The tool is preferably a grinding wheel and the workpiece is a roll appropriately mounted within a roll grinding machine. The digital control system receives various infeed commands representative of the different types of infeed positioning that are to be performed during a grinding operation. The digital control system is thereafter operative to combine these infeed commands into a composite set of control signals. These control signals are applied to a single motor within a pivotal infeed arrangement which moves the grinding wheel relative to the workpiece.

Abstract: A roll grinding machine having a neckrest which comprises a pair of roll supporting gibs functioning as independent load carrying members as well as having means for adjusting both the supporting gibs permitting accurate axial alignment of the roll in the machine.