A Reliable, Maintenance-Free Oxygen Sensor for Aircraft Using an Oxygen- Sensitive Coating on Potentiometric Electrodes

Abstract

This report is on the preliminary development of a new kind of oxygen sensor. Based on sensing a potentiometric signal from oxygen-specific compounds, this approach offers a potentially stable, reliable, and vastly simplified sensor. The report represents two configurations for the oxygen-specific compound (oxygen reagent). One makes use of the reagent in a thin solution film confined by a membrane. The other uses the reagent immobilized in a polymer film, without any additional solvents. This last embodiment is essentially a solid-state probe of oxygen. This report demonstrates the feasibility of such an approach by reviewing relevant work dealing with (1) proof of principle, (2) calibration curves over a range of oxygen pressure, (3) temperature effects, and (4) pressure effects. Keywords: Oxygen sensor, Solid-state.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1990
Accession Number
ADA222696

Entities

People

  • Emory S. De Castro
  • Mark E. Meyerhoff

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Aircrafts
  • Calibration
  • Charge Transfer
  • Chemistry
  • Contracts
  • Detectors
  • Equations
  • Failure Mode And Effect Analysis
  • Films
  • Governments
  • Maintenance
  • Measurement
  • Oxygen Sensors
  • Polymeric Films
  • Polymers
  • Procurement
  • United States

Fields of Study

  • Materials science

Readers

  • Analytical Chemistry
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Systems Analysis and Design