Pressure Sensor Catheter based on Micromachined Aluminum Nitride Membrane Fiber Tip Fabry-Pérot-Interferometer

  • Marvin Friedemann
  • , Katja Meinel
  • , Sebastian Voigt
  • , Raoul Hecker
  • , David Kriebel
  • , Karla Hiller
  • , Chris Stockel
  • , Jan Mehner

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

Abstract

This paper introduces an absolute pressure sensor based on an extrinsic fiber-optic Fabry-Perot-Interferometer molded into a silicone catheter. The interferometer principle is formed between the tip of an optical fiber and a reflective multilayer membrane containing aluminum nitride. The signal analysis is done by a Fiber Bragg Grating interrogation device. First, the optical sensing principle as pressure sensor in an invasive catheter with a diameter of 1 mm is described. Then, the dependence of the optical signal on changes of hydrostatic pressure and ambient temperature is shown. Out of these characteristics it was possible to evaluate the pressure sensor catheter for potential application in the human vascular system.

Original languageEnglish
Title of host publication2021 26th International Conference on Applied Electronics, AE 2021
EditorsJiri Pinker
PublisherIEEE Computer Society
ISBN (Electronic)9788026109723
DOIs
Publication statusPublished - 7 Sept 2021
Event26th International Conference on Applied Electronics, AE 2021 - Pilsen, Czech Republic
Duration: 7 Sept 20218 Sept 2021

Publication series

NameInternational Conference on Applied Electronics
Volume2021-September
ISSN (Print)1803-7232

Conference

Conference26th International Conference on Applied Electronics, AE 2021
Country/TerritoryCzech Republic
CityPilsen
Period7/09/218/09/21

Keywords

  • AlN membrane
  • Catheter
  • Fabry-Perot-Interferometer
  • Fiber-optic sensors
  • Hydrostatic pressure
  • Interrogation device
  • Temperature

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