Regenerative feedback resonant circuit
A. Mark Jones · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 2023
A regenerative feedback resonant circuit for measuring a transient response in a loop is disclosed. The circuit includes an amplifier for generating a signal in the loop. The circuit further includes a resonator having a resonant cavity and a material located within the cavity. The signal sent into the resonator produces a resonant frequency. A variation of the resonant frequency due to perturbations in electromagnetic properties of the material is measured.