Patent ID: 11879946
Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
Field: Measurement (Instruments)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A method for detecting an abnormality in an energy unit, comprising:
applying an electrical current signal to the energy unit, the energy unit comprising at least one of: an electrical energy storage system, an electrochemical energy storage system, an electrical energy harnessing system, and an electrochemical energy harnessing system;
performing a plurality of measurements, at a respective plurality of different locations with respect to the energy unit, of a change in magnetic field; wherein a response of the energy unit to the applied signal comprises the change in magnetic field; the step of performing comprising detecting the change in magnetic field at each location of the plurality of different locations; wherein the response is a time varying response and the measurements include the change in magnetic field as a function of time; and
processing the plurality of measurements to identify the abnormality.