Abstract: An optical fiber current sensing controller module, where an optical transmitter is energized from a DC source and emits an optical field of calibrated intensity and wavelength to a linear polarizer which generates a reference signal which is then launched in alignment with the transmission axes of a polarization maintaining optical fiber link to a remote and passive fiber optic current sensor (FOCS), where the linearly polarized optical pulse traverses a complete circular path around an energized conductor and is subject to polarization plane rotation in proportion to the magnetic flux density with the integration equal to electric current magnitude according to Ampere's law, and the rotated polarized optical pulse is transmitted back to the optical fiber current sensing controller module via a return fiber optic cable, where the Stokes vector polarization parameters for the returned optical signal are calculated by splitting the elliptically polarized field into four components, passing these components thr

Abstract: A fiber optic current sensor (FOCS) installation module for online switchgear metering and portable field testing applications, which mechanically integrates fiber optic current loop sensors with electrical power system conductors to provide online current metering data in low and medium voltage switchgear installations, or for collecting electrical test data, including partial discharge measurements for medium voltage cables and equipment and harmonic current surveys for power quality studies.

Abstract: A sandal which integrates toe spacing elements, where a monolithically fabricated outsole and raised footbed feature an inner recessed channel in the forefoot region which integrates vertical ends of toe spacing elements at integrated receptacle locations using flexible straps, which also provide a lacing network for the sandal, using midfoot and heel anchoring locations integrated with the outsole.

Abstract: An all fiber optic electric field sensor for indoor switchgear phase conductor bus bar voltage sensing, which is galvanically isolated from the electric circuit of the switchgear power distribution system, featuring a single mode optical transmitter, installed on the front side of a switchgear cubicle, which connects via an optical patch cord routed in conduit to a passive, in-line, all fiber polarization filtering module installed on the back of the switchgear cubicle, which connects to an all dielectric single mode fiber optic voltage sensor cable with standardized Kerr constant, routed within insulating all dielectric rigid conduit, which is secured with mechanical support brackets, featuring integrated vibration dampers, which traverses an optical path in parallel with a phase conductor bus bar and a ground bus, and where the degree of electric field induced birefringence occurring on the optical path which is perpendicular to the electric field radiating from the phase conductor is measured by observing