Construction and Evaluation of Effective Dead Space Comparator

Abstract

A device for comparing the Effective Dead Space (EDS) of various breathing systems and components was fabricated. Apparatus consisted of two electrically driven bellows, one of which 'exhaled' 100% oxygen into the system or component (e.g. mouthpiece, facemask) being tested, next the second bellows 'inhaled' air from the same system and 'exhaled' it into a spriometer. By determining the amount of oxygen in the sample in the spirometer it was possible to calculate the fraction of each 'exhaled' breath that was 'inhaled'.

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Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1957
Accession Number
AD0782657

Entities

People

  • L. R. Funderburk Jr.

Organizations

  • United States Navy Experimental Diving Unit

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Air Flow
  • Automatic
  • Carbon Dioxide
  • Check Valves
  • Classification
  • Comparators
  • Diving
  • Flow
  • Measurement
  • Procurement
  • Regulators
  • Respiration
  • Security
  • Test And Evaluation
  • Valves

Readers

  • Cardiovascular Physiology
  • Electrical Engineering
  • Materials Science

Technology Areas

  • Space