Oxygen Sensing in Rebreather Diving

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Reliable measurement of oxygen is the technology that makes mixed-gas closed-circuit rebreathers (CCRs) possible. For the past 50 years, all electronic CCRs but one have relied on the system invented by marine scientist Walter Starck for the Electrolung, the first commercial CCR. Introduced in 1968, Starck’s design featured three electrochemical oxygen (O2) sensors along with […]