Patent
A system for sensing a magnetic field with use of a superconductor magneto-resistive element
Hidetaka Shintaku,Koba Masayoshi +1 more
TLDR
In this paper, a superconductor magneto-resistive element 14 is installed in a center portion surrounded by two coils 15 and 16 which generate A.C and D.C. respectively.Abstract:
The superconductor magneto-resistive element 14 is installed in a center portion surrounded by two coils 15 and 16 which generate A.C. and D.C. bias magnetic fields respectively. The coils 15 and 16 are respectively connected to A.C. and D.C. power sources for applying A.C. and D.C. bias magnetic field to the element 14. With the output signal of the element 14, the fundamental component having the frequency component same as that of the A.C. bias magnetic field and the quadratic harmonic component having the frequency component twice as that of the fundamental component are calculated using the Fourier transform. The calculated value of the fundamental component is divided by the value of the quadratic harmonic component, thereby removing the change of the output signal of the element 14 due to the fluctuation inherent in the element 14, enabling to measure an external magnetic field with high accuracy.read more
Citations
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Patent
Frequency/voltage transducer with superconductor and application to frequency/voltage converters
TL;DR: In this paper, a transducer with superconductor is proposed, which is applicable especially to a frequency/voltage converter, the frequency to be converted being represented by an alternating component of a current supplied to the supply electrodes.
References
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Patent
Sensor and method for indicating the presence of a low magnetic field using high critical temperature superconductor ceramic material to absorb electromagnetic energy
TL;DR: In this article, a sensor and method for indicating the presence of a low magnetic field using high critical temperature superconductor ceramic material is comprised of a sensing element consisting essentially of the highcritical temperature super-conductor porite material without the need for further processing.
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