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Cochran Undersea Technology

End of an era II

Below you’ll find some pictures took by Doug Elsey that were commissioned by Cochran during the 2011 deep expedition. My late friend, Larry Elsevier, sent me these pictures to be shared. At the time I was working with him. Enjoy!

Cochran Undersea Technology

End of an era, Cochran Undersea Technology is no more

NAVY and Mike:
One of the leader in dive industry has closed the door. It is sad moment, because much of the investigations, conversations and technologies that was furge during decades aren’t available anymore. As tribute I’m going to publish a series of articles that reflects decades of investigations and advancement and development.

Intro to Ratio Deco

We’re going to review only some aspects of this system, because this is a merely introduction. So, knowing this, lets get into it. This system is based on a statistical approach to decompression schedule (observation), this mean that you must used a set of standardized gases for a particular range of depth that were chosen […]

Estándares y lineamientos  

Grupos de buceo de seguridad publica Necesitamos estándares nacionales?   Formar un grupo de Seguridad Pública requiere un esfuerzo monetario y educativo. Ambos factores son claves para el éxito; más aún, mantener un grupo ya formado requiere al menos un flujo constante de recursos.   En este ensayo, quiero discutir las adversidades que representa la formación de […]

Need an offline desktop logbook for your Freedom Computer?

Wetnotes desktop is a program based on Windows PC made for the range of DiveSoft dive computers. It is very simple, its purpose is to substitute for the Online based program, which is a completed tool for analyzes your dives. Nonetheless when you don’t have an access to Internet, you may use this program to display your dives.
Logbook para las computadoras (ordenadores) de buceo Freedom de DiveSoft. Se usa como sustituto del programa en línea. Mayormente cuando no se tiene acceso a internet.

Pelagian approach to Instant Cell Validation

Pelagian approach to Instant Cell Validation- A pro active way to really find out if the sensors make sense is to have the diluent FgO2 x ambient pressure pre calculated in 5 m increments on your wrist slate or wet notes. Then go to the nearest depth and exhale half a breath from your nose and inhale slowly. If you inhale very slow for 10 seconds you will get a very accurate reading.

Active Sensor Validation (ASV)

Active Sensor Validation-allow the manual  injection of diluent gas directly on the oxygen sensors at any point during a dive. This  feature served two functions: it purged any condensation that might have accumulated  on the sensors (thereby restoring function to sensors blocked by a film of water on the  sensing membrane) and, more importantly, it exposed the oxygen sensors to a known  fraction of oxygen.