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High-sensitivity low-frequency magnetometer using magnetostrictive primary sensing and piezoelectric signal recovery

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2 Author(s)
Pantinakis, A. ; University of Kent at Canterbury, Physics Department, Canterbury, UK ; Jackson, D.A.

A simple and inexpensive magnetometer is presented which uses a piezomagnetic primary sensor together with a piezoelectric transducer to convert a magnetic field into an electrical signal. A linear operating range is achieved by employing a negative feedback configuration. The detection sensitivity is 1.5 x 10-4 A/m per Hz1/2at low frequencies.

Published in:

Electronics Letters  (Volume:22 ,  Issue: 14 )