Characterization of Implantable, Wireless Capacitive Type Intraocular Pressure Sensor

Title
Characterization of Implantable, Wireless Capacitive Type Intraocular Pressure Sensor
Authors
장철인신경식이미림박창근윤광석강지윤이수현
Keywords
안압센서; 무선측정; 캐패시터; 인체삽입; IOP sensor; Capacitive sensor; Implantable
Issue Date
2014-04
Publisher
16th The Korean MEMS Conference
Abstract
We had presented an inductive type intraocular pressure sensor (i-IOP) in previous work. The distance between a micro coil and a ferrite on the membrane was modulated by pressure, and as a result the inductance and resonance frequency was changed. However, it has some obstacles in increasing the sensitivity in sensor performance and in reducing the size to improve biocompatibility. Therefore, this study suggests a capacitive type IOP (c-IOP). The sensitivity of a c-IOP was 24 kHz/mmHg under 60 mmHg pressure. It is larger than 14 kHz/mmHg of an i-IOP, although the size of c-IOP is smaller than that of i-IOP by at least 47 % without significantly degradation of phase-dip in received signal from external coil. The performance of both sensors will be tested with in-vivo test with rabbits as real time pressure sensors.
URI
http://pubs.kist.re.kr/handle/201004/48971
Appears in Collections:
KIST Publication > Conference Paper
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE