Patent ID: 11921136
Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 13:
14. A method for detecting small perturbation, the method comprising:
modulating an effective inductance or capacitance of an LC tank, creating a modulated LC circuit using a modulation circuit at one or more modulating frequencies to cause the modulated LC tank to operate proximal to an exceptional point of degeneracy (EPD), the modulated LC tank comprising a voltage multiplier and a reset circuit, the voltage multiplier circuit configured to receive a modulation signal and reset circuit coupled to the voltage multiplier and the LC circuit based on a periodic reset signal;
detecting a change in resonance frequencies of the modulated LC tank; and
determining a change in perturbation of a capacitor or an inductor of the modulated LC tank based at least on the change in the resonance frequencies of the modulated LC tank.