Patent ID: 8957631
Filing Date: 2015-02-17
Classification: G01D,G01P,H02J

Abstract:
1. A sensor comprising: an induction module configured to generate an electrical voltage induced by a change in magnetic flux within the induction module; a sensing module configured to generate data based on a frequency of the change in magnetic flux, wherein the sensing module automatically controls a variable load based on at least one of a magnitude of the induced electrical voltage and the frequency of the change in magnetic flux; a wireless telemetry module configured to transmit the data; a rechargeable power source; and an energy scavenging module configured to recharge the rechargeable power source using at least a portion of the electrical voltage induced by the change in magnetic flux, wherein the energy scavenging module comprises the variable load that adjusts a recharging power from the portion of the electrical voltage that recharges the rechargeable power source.