A Wireless Gauge Pressure Sensor with Enhanced Sensitivity Fabricated by Flexible PCB Technology for Intracranial Pressure Sensing

Yi Chiu*, You Zen Chen, Chia Chun Hsieh, Hao Chiao Hong

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a gauge pressure sensor based on the standard industrial flexible PCB (FPCB) technology. The wireless LC-resonant sensor consists of a variable sensing capacitor and a planar inductor coil fabricated in FPCB. The air gap of the sensing capacitor is extended through a pressure channel embedded in the FPCB strip to enable relative pressure measurement. Thus, the intracranial pressure (ICP) with respect to local atmosphere can be measured without other calibration means. The flat FPCB structure also facilitates the subdural implantation procedures. Experimental results showed that the proposed gauge pressure sensors with such open sensing structures had much higher frequency sensitivity (0.29%/mmHg) compared with sensors with sealed sensing cavities (0.005%/mmHg) and achieved a resolution of 0.51 mmHg.

Original languageEnglish
Title of host publication2019 IEEE Sensors, SENSORS 2019 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728116341
ISBN (Print)9781728116358
DOIs
StatePublished - 27 Oct 2019
Event18th IEEE Sensors, SENSORS 2019 - Montreal, Canada
Duration: 27 Oct 201930 Oct 2019

Publication series

NameProceedings of IEEE Sensors
Volume2019-October
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference18th IEEE Sensors, SENSORS 2019
CountryCanada
CityMontreal
Period27/10/1930/10/19

Keywords

  • flexible PCB
  • FPCB
  • frequency
  • gauge pressure
  • ICP
  • intracranial pressure
  • LC resonance
  • pressure sensor
  • relative pressure

Fingerprint Dive into the research topics of 'A Wireless Gauge Pressure Sensor with Enhanced Sensitivity Fabricated by Flexible PCB Technology for Intracranial Pressure Sensing'. Together they form a unique fingerprint.

Cite this