Diving Decompression Computer (XDC-2) Validation Dives, 36-54 msw. Phase 1. Preliminary Results.
Abstract
The Canadian Forces have used decompression computers for a number of years. However, advances in electronics have allowed the older analogue computers to be replaced by more sophisticated digital electronic computers (XDC-2's) which monitor the diver's depth and calculate the safe depth in real time. An operation lasting four weeks was conducted at DCIEM utilizing the newly acquired Deep Diving Facility as the vehicle to test the operational diving envelope of the XDC-2 Decompression Computer at 36-54 msw. Ultrasonic Doppler monitoring techniques were used throughout the series of dives to measure bubble activity in the pulmonary artery. The initial results would seem to elucidate the XDC-2 computer envelope by adding more information and more clearly defining the present calculated operational curves. As it was necessary to find a new reference point between the calculated curves, The Royal Navy Limiting Line as published in the R.N. Diving Manual (BR 2806) Table Eleven, was introduced as a datum line. It was found that there was a degree of correlation between the R.N. Limiting Line and that of the XDC-2 recalculated operational envelopes. Doppler ultrasonic monitoring results confirmed the severity of a dive and it was possible to grade a dive profile as mild, moderate or severe. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1979
- Accession Number
- ADA086488
Entities
People
- M. D. Kooner
Organizations
- DRDC Toronto