Flux dam, a method to reduce extra low frequency noise when a superconducting magnetometer is exposed to a magnetic field

1995 ◽  
Vol 67 (5) ◽  
pp. 709-711 ◽  
Author(s):  
R. H. Koch ◽  
J. Z. Sun ◽  
V. Foglietti ◽  
W. J. Gallagher
Keyword(s):  
Magnetic Field ◽  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise

scholarly journals Low-Frequency Noise Evaluation on a Commercial Magnetoimpedance Sensor at Submillihertz Frequencies for Space Magnetic Field Detection

Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 4888
Author(s):  
Tao Wang ◽  
Chen Kang ◽  
Guozhi Chai
Keyword(s):  
Magnetic Field ◽  
Low Frequency ◽  
Temperature Stability ◽  
Space Missions ◽  
Low Noise ◽  
Integration Time ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Field Detection ◽  
Measurement Limit

The purpose of this study was to measure the low-frequency noise and basic performance of a commercial magnetoimpedance (MI) sensor at sub-millihertz frequencies for use in space missions. Normally, space missions require measuring very weak magnetic fields with a long integration time, such as the space gravitational wave detection mission requiring sub-millihertz frequencies. We set up a platform for measuring the performance on this MI sensor, including low-frequency noise, measurement limit, linearity, and temperature stability. The results show that the low-frequency noise of the MI sensor is below 10 nT/√Hz at 1 mHz and below 100 nT/√Hz at 0.1 mHz; its measurement limit is 600 pT. The MI sensor is characterized by high precision, small size, and low noise, demonstrating considerable potential for application in magnetically sensitive experiments requiring long integration time. This is an effect way to solve the problem that there is on one suitable magnetic sensor at space magnetic field detection, but the sensor requires improvements in temperature stability.

scholarly journals Measurement and study of low-frequency noise in TMR magnetic field sensor

2016 ◽  
Vol 65 (5) ◽  
pp. 057501
Author(s):  
Cao Jiang-Wei ◽  
Wang Rui ◽  
Wang Ying ◽  
Bai Jian-Min ◽  
Wei Fu-Lin
Keyword(s):  
Magnetic Field ◽  
Low Frequency ◽  
Magnetic Field Sensor ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Field Sensor

Low-frequency noise measurements on commercial magnetoresistive magnetic field sensors

2005 ◽  
Vol 97 (10) ◽  
pp. 10Q107 ◽  
Author(s):  
Nathan A. Stutzke ◽  
Stephen E. Russek ◽  
David P. Pappas ◽  
Mark Tondra
Keyword(s):  
Magnetic Field ◽  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Magnetic Field Sensors ◽  
Noise Measurements
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