TY - JOUR
T1 - Low-noise magnetometer based on inductance modulation in high-critical-temperature superconductor coil
AU - Enpuku, Keiji
AU - Matsuo, Masaaki
AU - Yoshida, Yujiro
AU - Yamashita, Shigeya
AU - Sasayama, Teruyoshi
AU - Yoshida, Takashi
PY - 2018/6
Y1 - 2018/6
N2 - We developed a magnetometer based on inductance modulation of a coil made from a high-critical-temperature superconducting material. The coil inductance was modulated over time via a modulation current applied to a magnetic wire that was inserted into the coil. The magnetic field was then converted into a signal voltage using this time-dependent inductance. The relationship between magnetometer performance and the modulation current conditions was studied. Under appropriate conditions, the magnetometer had responsivity of 885 V/T. The magnetic field noise was 1.3 pT/Hz1/2 in the white noise region and 5.6 pT/Hz1/2 at f = 1 Hz.
AB - We developed a magnetometer based on inductance modulation of a coil made from a high-critical-temperature superconducting material. The coil inductance was modulated over time via a modulation current applied to a magnetic wire that was inserted into the coil. The magnetic field was then converted into a signal voltage using this time-dependent inductance. The relationship between magnetometer performance and the modulation current conditions was studied. Under appropriate conditions, the magnetometer had responsivity of 885 V/T. The magnetic field noise was 1.3 pT/Hz1/2 in the white noise region and 5.6 pT/Hz1/2 at f = 1 Hz.
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U2 - 10.7567/JJAP.57.060314
DO - 10.7567/JJAP.57.060314
M3 - Article
AN - SCOPUS:85047908460
VL - 57
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 6
M1 - 060314
ER -