DIGITAL DETECTION AND FEEDBACK FLUXGATE MAGNETOMETER

Authors
PIILHENRIKSEN J MERAYO JMG NIELSEN OV PETERSEN H PETERSEN JR PRIMDAHL F
Citation
J. Piilhenriksen et al., DIGITAL DETECTION AND FEEDBACK FLUXGATE MAGNETOMETER, Measurement science & technology, 7(6), 1996, pp. 897-903
Citations number
11
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Measurement science & technology → ACNP
ISSN journal
09570233
Volume
7
Issue
6
Year of publication
1996
Pages
897 - 903
Database
ISI
SICI code
0957-0233(1996)7:6<897:DDAFFM>2.0.ZU;2-Q
Abstract
A new full Earth's field dynamic feedback fluxgate magnetometer is des cribed. It is based entirely on digital signal processing and digital feedback control, thereby replacing the classical second harmonic tune d analogue electronics by processor algorithms. Discrete mathematical cross-correlation routines and substantial oversampling reduce the noi se to 71 pT root-mean-square in a 0.25-10 Hz bandwidth for a full Eart h's field range instrument.