PMID- 32230989
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200502
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 20
IP  - 7
DP  - 2020 Mar 27
TI  - A Combination of a Vibrational Electromagnetic Energy Harvester and a Giant 
      Magnetoimpedance (GMI) Sensor.
LID - 10.3390/s20071873 [doi]
LID - 1873
AB  - An energy harvesting device combined with a giant magnetoimpedance (GMI) sensor 
      is presented to analyze low frequency vibrating systems. An electromagnetic 
      harvester based on magnetic levitation is proposed for the electric power 
      generation. The device is composed of two fixed permanent magnets at both ends of 
      a cylindrical frame, a levitating magnet acting as inertial mass and a pick-up 
      coil to collect the induced electromotive force. At the resonance frequency (10 
      Hz) a maximum electrical power of 1.4 mW at 0.5 g is generated. Moreover, an 
      amorphous wire was employed as sensor nucleus for the design of a linear 
      accelerometer prototype. The sensor is based on the GMI effect where the 
      impedance changes occur as a consequence of the variations of the effective 
      magnetic field due to an oscillating magnetic element. As a result of the 
      magnet's periodic motion, an amplitude modulated signal (AM) was obtained, its 
      amplitude being proportional to mechanical vibration amplitude (or acceleration). 
      The sensor's response was examined for a simple ferrite magnet under vibration 
      and compared with that obtained for the vibrational energy harvester. As a result 
      of the small amplitudes of vibration, a linear sensor response was obtained that 
      could be employed in the design of low cost and simple accelerometers.
FAU - Beato-Lopez, Juan Jesus
AU  - Beato-Lopez JJ
AUID- ORCID: 0000-0002-9339-3557
AD  - Departamento de Ciencias, Universidad Publica de Navarra, 31006 Pamplona, Spain.
AD  - Institute for Advanced Materials and Mathematics INAMAT2, Universidad Publica de 
      Navarra, 31006 Pamplona, Spain.
FAU - Royo-Silvestre, Isaac
AU  - Royo-Silvestre I
AD  - Departamento de Ciencias, Universidad Publica de Navarra, 31006 Pamplona, Spain.
FAU - Algueta-Miguel, Jose Maria
AU  - Algueta-Miguel JM
AD  - Departamento de Ingenieria de Electricidad, Electronica y Comunicacion, 
      Universidad Publica de Navarra, 31006 Pamplona, Spain.
AD  - Institute of Smart Cities, Universidad Publica de Navarra, 31006 Pamplona, Spain.
FAU - Gomez-Polo, Cristina
AU  - Gomez-Polo C
AD  - Departamento de Ciencias, Universidad Publica de Navarra, 31006 Pamplona, Spain.
AD  - Institute for Advanced Materials and Mathematics INAMAT2, Universidad Publica de 
      Navarra, 31006 Pamplona, Spain.
LA  - eng
GR  - "Dispositivos de recoleccion de energia vibracional basados en levitacion 
      magnetica"/Gobierno de Navarra, Dpto de Desarrollo Economico/
PT  - Journal Article
DEP - 20200327
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
SB  - IM
PMC - PMC7180720
OTO - NOTNLM
OT  - GMI effect
OT  - accelerometer
OT  - amplitude
OT  - low frequency vibrating systems
OT  - vibrational energy harvester
COIS- The authors declare no conflict of interest.
EDAT- 2020/04/02 06:00
MHDA- 2020/04/02 06:01
PMCR- 2020/04/01
CRDT- 2020/04/02 06:00
PHST- 2020/03/06 00:00 [received]
PHST- 2020/03/20 00:00 [revised]
PHST- 2020/03/24 00:00 [accepted]
PHST- 2020/04/02 06:00 [entrez]
PHST- 2020/04/02 06:00 [pubmed]
PHST- 2020/04/02 06:01 [medline]
PHST- 2020/04/01 00:00 [pmc-release]
AID - s20071873 [pii]
AID - sensors-20-01873 [pii]
AID - 10.3390/s20071873 [doi]
PST - epublish
SO  - Sensors (Basel). 2020 Mar 27;20(7):1873. doi: 10.3390/s20071873.