Accession Number : ADD017464

Title :   Feedback-Controlled Oxygen Regulation System for Benthic Flux Chambers and Method for Maintaining a Constant Volume of Oxygen Therefor.

Descriptive Note : Patent, Filed 3 Dec 93, patented 7 May 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Chadwick, David B

Report Date : 07 May 1995

Pagination or Media Count : 20

Abstract : A method and apparatus tor maintaining oxygen levels in an isolated volume of fluid (e.g. water) is provided. The method and apparatus are adaptable for use with a benthic flux sampling device and rely upon periodically measuring the oxygen concentration in the isolated volume with an oxygen sensor system, monitoring the oxygen sensor system with a control unit, and automatically dispensing oxygen into the isolated volume of fluid with an oxygenation system to maintain a predetermined constant level of oxygenation that corresponds to the ambient.

Descriptors :   *TEST EQUIPMENT, *PATENTS, *OXYGEN EQUIPMENT, *UNDERWATER EQUIPMENT, VOLUME, CONTROL SYSTEMS, FLUX(RATE), ISOLATION, OXYGEN, SAMPLERS, CHAMBERS, CONCENTRATION(CHEMISTRY), GAS DETECTORS, DISPENSERS, BENTHONIC ZONES

Subject Categories : Physical and Dynamic Oceanography
      Industrial Chemistry and Chemical Processing
      Submarine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE