TY - JOUR
T1 - Study of the effect of distance and misalignment between magnetically coupled coils for wireless power transfer in intraocular pressure measurement
AU - Rendon-Nava, Adrian E.
AU - Díaz-Méndez, J. Alejandro
AU - Nino-De-Rivera, Luis
AU - Calleja-Arriaga, Wilfrido
AU - Gil-Carrasco, Felix
AU - Díaz-Alonso, Daniela
PY - 2014
Y1 - 2014
N2 - An analysis of the effect of distance and alignment between two magnetically coupled coils for wireless power transfer in intraocular pressure measurement is presented. For measurement purposes, a system was fabricated consisting of an external device, which is a Maxwell-Wien bridge circuit variation, in charge of transferring energy to a biomedical implant and reading data from it. The biomedical implant is an RLC tank circuit, encapsulated by a polyimide coating. Power transfer was done by magnetic induction coupling method, by placing one of the inductors of the Maxwell-Wien bridge circuit and the inductor of the implant in close proximity. The Maxwell-Wien bridge circuit was biased with a 10 MHz sinusoidal signal. The analysis presented in this paper proves that wireless transmission of power for intraocular pressure measurement is feasible with the measurement system proposed. In order to have a proper inductive coupling link, special care must be taken when placing the two coils in proximity to avoid misalignment between them.
AB - An analysis of the effect of distance and alignment between two magnetically coupled coils for wireless power transfer in intraocular pressure measurement is presented. For measurement purposes, a system was fabricated consisting of an external device, which is a Maxwell-Wien bridge circuit variation, in charge of transferring energy to a biomedical implant and reading data from it. The biomedical implant is an RLC tank circuit, encapsulated by a polyimide coating. Power transfer was done by magnetic induction coupling method, by placing one of the inductors of the Maxwell-Wien bridge circuit and the inductor of the implant in close proximity. The Maxwell-Wien bridge circuit was biased with a 10 MHz sinusoidal signal. The analysis presented in this paper proves that wireless transmission of power for intraocular pressure measurement is feasible with the measurement system proposed. In order to have a proper inductive coupling link, special care must be taken when placing the two coils in proximity to avoid misalignment between them.
UR - http://www.scopus.com/inward/record.url?scp=84904634398&partnerID=8YFLogxK
U2 - 10.1155/2014/692434
DO - 10.1155/2014/692434
M3 - Artículo
SN - 2356-6140
VL - 2014
JO - Scientific World Journal
JF - Scientific World Journal
M1 - 692434
ER -