A relax-type magnetometer using amorphous ribbon core

Journal Article · Tue Mar 01 04:00:00 EST 1994 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.312450· OSTI ID:40227

Praslicka, D ^[1]

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1. Air Force Academy, Kosice (Slovakia). Dept. of Electronics

A magnetometer for digital analysis of a magnetic field is presented. The method of measuring is based on the detection of the coil relaxation time, after its excitation up to saturation by means of short current pulses. The time detection uses a voltage limiter, before an active comparation. An external magnetic field causes a width modulation or the relax-pulses, due to the total consumption of the supplied energy. The width of the relax-pulses is evaluated by counters and, after buffering, picked up to IBM/PC parallel I/O. The sensitivity or the present magnetometer is 10nT from DC up to 500Hz and 100pT up to 5Hz, in real time. Data analysis could be utilized for autonomical navigation systems, as well as for an industrial, environmental and medical use.

• OSTI ID: 40227
• Report Number(s): CONF-930860--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 2Pt2 Vol. 30; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
ANALOG-TO-DIGITAL CONVERTERS
DATA PROCESSING
DESIGN
DIGITAL SYSTEMS
MAGNET CORES
MAGNETOMETERS
MEASURING METHODS