Abstract: A self-cleaning solar panel system and method for achieving the same, utilizing ultrasonic waves and excitation frequencies. The system comprises a series of solar panels, each equipped with an ultrasonic converter, curved waveguide, and an ultrasonic disc affixed directly to a surface of the solar panel. The ultrasonic converter can be powered by a generator such that it delivers variable excitation frequencies and a pulsing ultrasonic wave. The solar panels are angled at a fixed slope that is optimized to dislodge and remove dust and debris from the surface of the solar panels with the excitation frequency, without significantly reducing the efficiency of the solar panels.

Abstract: An apparatus and method for induction hardening a workpiece can first include fastening a workpiece in a clamping assembly. The clamping assembly is provided with a plurality of hardness testing devices. Alternatively, one or more hardness testing devices are provided directly to the induction hardening head. The induction hardening head is moved over the workpiece to harden a portion thereof, such as an edge. Then, a series of hardness measurements are taken with the plurality of hardness testing devices to allow an operator or controller to adjust the input to the induction hardening head. This allows the workpiece to be provided with a predetermined hardness profile within a desired tolerance.

Abstract: An apparatus and method for induction hardening a workpiece may first comprise the fastening a workpiece in a clamping assembly. The clamping assembly is provided with a plurality of hardness testing devices. Alternatively, one or more hardness testing devices are provided directly to the induction hardening head. The induction hardening head is moved over the workpiece to harden a portion thereof, such as an edge. Then, a series of hardness measurements are taken with the plurality of hardness testing devices to allow an operator or controller to adjust the input to the induction hardening head. This allows the workpiece to be provided with a predetermined hardness profile within a desired tolerance.