bullet Sensors & Transducers Journal

    (ISSN: 2306-8515, e-ISSN 1726-5479)


    About this Journal

   Information for Authors

   Editorial Board

   Editorial Calendar

   Current Issue

   Browse Journal

S&T journal's cover

Submit Press Release

Submit White Paper

25 Top Downloaded Articles (2007-2012)


Contact Us





Vol. 245, Issue 6, October 2020, pp. 20-26




Design Approach for an Off-diagonal Giant Magneto Impedance Sensor
Based on Field Programmable Gate Array

1, * Papa Silly TRAORE, 2 Aktham ASFOUR and 2 Jean Paul YONNET

1 Ecole Supérieure Polytechnique (ESP), Université Cheikh Anta Diop (UCAD), Dakar, Sénégal
2 Univ. Grenoble Alpes, CNRS, Grenoble INP, G2ELab, 38000 Grenoble, France
1 Tel : +(221)773999941

* E-mail: papasilly.traore@esp.sn


Received: 25 September 2020 /Accepted: 23 October 2020 /Published: 30 October 2020

Digital Sensors and Sensor Sysstems


Abstract: This paper presents of a design approach for a high sensitivity digital off diagonal Giant Magneto Impedance (GMI) sensor based FPGA integrated circuits. The proposed design includes a Direct Digital Synthetizer (DDS) and a Digital Down Converter (DDC) fully implemented in the FPGA and associated with the off- diagonal configuration. This magnetic configuration has the potential to improve the sensitivity by increasing the number of turns of the pick-up coil and to realize a sensor without using a difference amplifier that could be source of additional noise. An equivalent magnetic white noise level of 1.1 pT/ÖHz is measured. These results are achieved using a CoFeSiB micro wire of 2.5 cm length and 400 turns of coil wound around it. Results show that this white noise floor is mainly attributed to the Analog to Digital Converter (ADC).


Keywords: Giant Magneto Impedance (GMI), Off-diagonal configuration, Digital electronic conditioning.


Acrobat reader logo Click <here> or title of paper to download the full pages article in pdf format



This work is licensed under a Creative Commons 4.0 International License


 Creative Commons License


Read more about Magnetic Sensors






1999 - 2020 Copyright ©, International Frequency Sensor Association (IFSA) Publishing, S.L. All Rights Reserved.

Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn