HIGH-FREQUENCY FLUXGATE SENSOR NOISE

Authors
PRIMDAHL F NIELSEN OV PETERSEN JR RIPKA P
Citation
F. Primdahl et al., HIGH-FREQUENCY FLUXGATE SENSOR NOISE, Electronics Letters, 30(6), 1994, pp. 481-482
Citations number
4
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
30
Issue
6
Year of publication
1994
Pages
481 - 482
Database
ISI
SICI code
0013-5194(1994)30:6<481:HFSN>2.0.ZU;2-F
Abstract
AC magnetic fields up to 3kHz can be measured directly using a modifie d high frequency fluxgate magnetometer. The amorphous metal ring core sensor was excited at 15kHz and in short circuited output mode has a - 3dB bandwith of at least 2kHz. The total RMS noise level is 93pT (64mH z to 3kHz), and the noise power density decreases as 1/f over the enti re frequency band.