Concept
Aanderaa Oxygen Optode 4130
URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL0102/ |
---|---|
Within Vocab | SeaVoX Device Catalogue |
Preferred Label | Aanderaa Oxygen Optode 4130 |
Definition | A dissolved oxygen sensor for use with Aanderaa data loggers. Measurement based on the ability of selected substances to act as dynamic fluorescence quenchers. The fluorescent indicator is a special platinum porphyrin complex embedded in a gas permeable foil that is exposed to the surrounding water. A black optical isolation coating protects the complex from sunlight and fluorescent particles in the water. This sensing foil is attached to a window providing optical access for the measuring system from inside a watertight titanium housing.The foil is excited by modulated blue light, and the phase of a returned red light is measured. By linearizing and temperature compensating, with an incorporated temperature sensor, the absolute O2 concentration can be determined. |
Broader |
L05:
dissolved gas sensors |
Related |
B75:
Aanderaa Data Instruments AS L35: Aanderaa |
Note | accepted |
Deprecated | false |
Alternative Label | AA Optode 4130 |
Version | 1 |
Has Current Version | http://vocab.nerc.ac.uk/collection/L22/current/TOOL0102/1/ |
Authored On | 2010-05-18 16:10:58 |
Alternate Profiles
Different views and formats:
Alternate Profiles ?Different Media Types (HTML, text, RDF, JSON etc.) and different information model views, profiles, are available for this resource.