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MAGNETIC NOISE MEASUREMENT FOR VACQUIER TYPE FLUXGATE SENSOR WITH DOUBLE EXCITATION

C. Ioan1, M. Tibu1,* , H. Chiriac1

Affiliation

  1. National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050, Iasi, Romania

Abstract

This paper presents a Vacquier type fluxgate sensor noise measurement and the constructive principle of our sensor. The sensor contains two cores made by amorphous wires and permits two kinds of excitation modes: excitation by coils and “direct” excitation (excitation current flowing through the cores). In both excitation modes we used the same frequency. We obtained a sensor’s noise reduction from 500 pT (pp) to 30 pT (pp) in 0 – 10 Hz frequency range..

Keywords

Fluxgate sensor, Amorphous wires, Noise reduction.

Submitted at: April 26, 2004
Accepted at: June 10, 2004

Citation

C. Ioan, M. Tibu, H. Chiriac, MAGNETIC NOISE MEASUREMENT FOR VACQUIER TYPE FLUXGATE SENSOR WITH DOUBLE EXCITATION, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 2, pp. 705-708 (2004)