Diver Monitoring Systems, On-Line and Portable for Thermal and Metabolic Measurements
Abstract
Physiological evaluation of diver performance required designing a portable diver monitoring system (P-DMS) for field use and an on-line diver monitoring system (O-DMS) for laboratory studies. For P-DMS and O-MDS, measurement requirements were similar: digit temperature (fingers/toes), body core temperature (esophageal/rectal), heart rate, and oxygen bottle pressure to determine oxygen consumption (VO2) using closed circuit underwater breathing apparatuses. Components of the P-DMS, reviewed in detail, include: solid-state data logger (Grant Instruments), waterproof bag with low-profile connector, special design miniaturized digit thermistors (Yellow Springs Instruments). Data can be stored, on multiple runs, up to 12 hours. Results from field testing in the Arctic and laboratory are discussed. The O-DMS provides real-time monitoring and computer acquisition of data from two divers for: digit/core temperatures, 12-site skin temperature and heat flux, and oxygen bottle pressure for VO2.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1990
- Accession Number
- ADA230030
Entities
People
- James R. Braun
- John A. Sterba
Organizations
- United States Navy Experimental Diving Unit