Abstract: Disclosed herein are devices, methods, and methods of making devices for facilitating condition monitoring of machinery allowing improve efficiencies and increased lifetime of the machinery while also reducing maintenance. In one embodiment, a device includes an enclosure assembly and a printed circuit board (PCB) assembly. The enclosure assembly includes a cap, a base mechanically coupled with the cap, and a support bracket mechanically coupled with the base. The PCB assembly includes a processor, a memory coupled with the processor, a first sensor electrically coupled with the processor, a second sensor electrically coupled with the processor, and a communication interface electrically coupled with the processor. The device, when installed, may generally form a shape of a tapered cylinder having a maximum height of 2.1 inches and a maximum diameter of 1.2 inches.

Abstract: An active power line conditioner that removes or cancels harmonic currents in power lines. The active power line conditioner is used with a power distribution system. The power distribution system includes an A/C source which supplies alternating half cycles (A/C) of voltage and current through a power line to an electrical load. An electrical load draws harmonic frequency current from the power line. The active power line conditioner comprises a current sensor, a first template circuit, a comparison circuit, and a current absorption and supply circuit. The current sensor is coupled to the power line and has an output comprising a sensed current signal representative of the current in the power line. The first template circuit has an output comprising a preferred current template that represents a desired sinusoidal current at the fundamental frequency of the power line and which is free of harmonic components.