DEVELOPMENT OF A CARBON DIOXIDE PARTIAL PRESSURE SENSOR

Abstract

The objective of the program was to design and develop a compact airborne CO2 sensor unit capable of sensing and measuring the CO2 content of manned, sealed environments. A prototype carbon dioxide sensor was designed, built, and calibrated. The sensor operates by alternately comparing the infrared absorption of the air sample at 4.26 microns, where CO2 exhibits strong absorption and at 3.90 microns where it has little absorption. A two color rotating filter provides sampling 200 times per second. The unit weighs 10 pounds and has a power consumption of 70 watts. The instrument is capable of detecting a concentration of at least 0.30% CO2 and has full scale capability to 5%.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1964
Accession Number
AD0614226

Entities

People

  • Gerald Jankowitz
  • Warren Ruderman

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Absorption
  • Amplifiers
  • Biomedical Research
  • Carbon Dioxide
  • Carbon Dioxide Sensors
  • Compound Semiconductors
  • Contracts
  • Detectors
  • Energy Consumption
  • Environment
  • Field Effect Transistors
  • Films
  • Frequency
  • Frequency Response
  • Impedance
  • Partial Pressure
  • Refractive Index

Readers

  • Atmospheric Remote Sensing.
  • Electronics Engineering
  • Environmental Engineering