FLUX MODULATION SCHEME FOR SQUID SIGNAL PROCESSING CIRCUITRY
A signal processing circuitry for a SQUID comprising: a signal processing module coupled to receive a SQUID output signal, the signal processing module comprising a modulator and a phase tracking component; an integrator coupled to an output of the signal processing module; a feedback circuit arrang...
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| Format: | Patent |
| Sprache: | eng ; fre |
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| Zusammenfassung: | A signal processing circuitry for a SQUID comprising: a signal processing module coupled to receive a SQUID output signal, the signal processing module comprising a modulator and a phase tracking component; an integrator coupled to an output of the signal processing module; a feedback circuit arranged to provide a feedback signal to the SQUID in a FLL arrangement, the feedback signal including an integrator output signal, wherein the integrator output signal is modulated by a quadrature modulation from the modulator; the phase tracking module is configured to demodulate and unwrap a phase angle of the output of the SQUID and provide the unwrapped phase angle to the integrator. |
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