Location

Utah State University

Start Date

11-5-2011 1:15 PM

Description

Previously we proposed construction of a miniaturized metabolic monitor that could be taken aboard the space station to monitor the physiological response of the body in a microgravity environment. The prototype consisted of an on airway non-dispersive infrared (NDIR) CO2 sensor and a luminescence quenching O2 sensor to measure gas concentrations, and differential pressure ports to measure gas flows. Our motivations, prototype design considerations, and initial experiments were presented in a previous paper.1 This paper aims to further examine the efficacy of the prototype device through 1) characterization of the flow profile by using a discharge coefficient, and 2) validation of the oxygen sensor at the high volumetric flows.

Share

COinS
 
May 11th, 1:15 PM

A Portable Miniaturized Metabolic Gas Analysis System

Utah State University

Previously we proposed construction of a miniaturized metabolic monitor that could be taken aboard the space station to monitor the physiological response of the body in a microgravity environment. The prototype consisted of an on airway non-dispersive infrared (NDIR) CO2 sensor and a luminescence quenching O2 sensor to measure gas concentrations, and differential pressure ports to measure gas flows. Our motivations, prototype design considerations, and initial experiments were presented in a previous paper.1 This paper aims to further examine the efficacy of the prototype device through 1) characterization of the flow profile by using a discharge coefficient, and 2) validation of the oxygen sensor at the high volumetric flows.