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Fast‐response oxygen sensor for a free‐fall CTD
Author(s) -
Atkinson M. J.
Publication year - 1988
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1988.33.1.0141
Subject(s) - ctd , oxygen sensor , oxygen , electrode , analytical chemistry (journal) , chemistry , materials science , chromatography , oceanography , geology , organic chemistry
A new, solid‐state, multiple‐component cathode, three‐electrode oxygen sensor has been adapted for use on a free‐fall CTD. Semipermeable membranes are not required for the sensor, giving it a very fast response time. The sensor is flow sensitive but with adequate control of the drop‐speed of the CTDO and appropriate electronic filtering, a vertical sampling resolution of 5 cm can be achieved. Changes in oxygen concentration of 3 µ M (0.067 mg liter ‒1 ) can be detected.
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