TY - GEN
T1 - Millimeter-sized, ultra-sensitive planar Hall effect gradiometer
AU - Nhalil, Hariharan
AU - Schultz, Moty
AU - Amrusi, Shai
AU - Grosz, Asaf
AU - Klein, Lior
N1 - Publisher Copyright: © 2023 IEEE.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - We present a miniature, ultra-sensitive magnetic field gradiometer in the form of a single elliptical planar Hall effect sensor that allows measuring magnetic field at 9 different locations on a 4 mm length scale [1]. The gradiometer detects magnetic field gradients with equivalent gradient magnetic noise levels of ∼ 958, ∼ 192, ∼ 51, and ∼ 26 \nT\m\surd Hz at 0.1, 1, 10, and 50 Hz, respectively, and tested under ambient conditions by measuring the field gradient produced by an electric current flowing through a straight wire. The compact size, low noise level, versatility, simple design, and low cost of this gradiometer makes it a suitable choice for detecting magnetic field gradients in small, confined spaces such as current probes or wearable electronic medical devices.
AB - We present a miniature, ultra-sensitive magnetic field gradiometer in the form of a single elliptical planar Hall effect sensor that allows measuring magnetic field at 9 different locations on a 4 mm length scale [1]. The gradiometer detects magnetic field gradients with equivalent gradient magnetic noise levels of ∼ 958, ∼ 192, ∼ 51, and ∼ 26 \nT\m\surd Hz at 0.1, 1, 10, and 50 Hz, respectively, and tested under ambient conditions by measuring the field gradient produced by an electric current flowing through a straight wire. The compact size, low noise level, versatility, simple design, and low cost of this gradiometer makes it a suitable choice for detecting magnetic field gradients in small, confined spaces such as current probes or wearable electronic medical devices.
KW - Gradiometer
KW - Magnetic sensor
KW - Planar Hall effect
UR - http://www.scopus.com/inward/record.url?scp=85177199048&partnerID=8YFLogxK
U2 - https://doi.org/10.1109/INTERMAGShortPapers58606.2023.10305054
DO - https://doi.org/10.1109/INTERMAGShortPapers58606.2023.10305054
M3 - منشور من مؤتمر
T3 - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings
BT - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023
Y2 - 15 May 2023 through 19 May 2023
ER -