PMID- 27879781
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180104
LR  - 20181113
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 8
IP  - 3
DP  - 2008 Mar 10
TI  - Low-cost Sensors Based on the GMI Effect in Recycled Transformer Cores.
PG  - 1575-1584
AB  - Sensors based on the giant magnetoimpedance (GMI) effect in silicon steelswere 
      constructed. Strips of silicon steels (0.500 mm-thick, 35.0 mm-long) with 
      widthsranging from 0.122 to 1.064 mm were cut from recycled transformer cores. 
      Since amaximum GMI ratio of 300% and a maximum field sensitivity of 1.5%/Oe were 
      observedin a 1.064 mm-wide sample at 200 kHz, the 1.064 mm-wide strips were 
      chosen as sensingelements in a slot key switch, angular velocity sensor, current 
      sensor and force sensor. Thesensing elements were integrated into electronic 
      circuits and the changes in impedancewere monitored. Variations in voltage due to 
      these changes were typically small and musttherefore be amplified by the 
      electronic circuits. For the current sensor and force sensor,the variation in the 
      voltage drop across the GMI sensing element had non-linear variationswith either 
      current or force and a conversion formula from a computer program wastherefore 
      needed. The performance of the systems was tested. These sensing systems 
      werestable, highly sensitive, hysteresis-free and could be produced on a mass 
      scale. Based ontheir GMI effect, the silicon steels are versatile alternative 
      low-cost sensors.
FAU - Jantaratana, Pongsakorn
AU  - Jantaratana P
AD  - Magnet Laboratory, Molecular Technology Research Unit, School of Science, 
      Walailak University, Thasala District, Nakon Si Thammarat 80161, Thailand. 
      fscipsj@ku.ac.th.
FAU - Sirisathitkul, Chitnarong
AU  - Sirisathitkul C
AD  - Magnet Laboratory, Molecular Technology Research Unit, School of Science, 
      Walailak University, Thasala District, Nakon Si Thammarat 80161, Thailand. 
      schitnar@wu.ac.th.
LA  - eng
PT  - Journal Article
DEP - 20080310
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
PMC - PMC3663012
OTO - NOTNLM
OT  - Sensor
OT  - giant magnetoimpedance
OT  - silicon steel
OT  - transformer core
EDAT- 2008/03/10 00:00
MHDA- 2008/03/10 00:01
PMCR- 2008/03/01
CRDT- 2016/11/24 06:00
PHST- 2008/01/09 00:00 [received]
PHST- 2008/02/25 00:00 [accepted]
PHST- 2016/11/24 06:00 [entrez]
PHST- 2008/03/10 00:00 [pubmed]
PHST- 2008/03/10 00:01 [medline]
PHST- 2008/03/01 00:00 [pmc-release]
AID - s8031575 [pii]
AID - sensors-08-01575 [pii]
AID - 10.3390/s8031575 [doi]
PST - epublish
SO  - Sensors (Basel). 2008 Mar 10;8(3):1575-1584. doi: 10.3390/s8031575.