Aanderaa Component
Oxygen Optodes
Optical dissolved oxygen sensors based on luminescence quenching, measuring absolute O2 concentration and % saturation from streams to the deep sea.
Description
Aanderaa introduced its oxygen optode in 2002, and more than 200 scientific papers have been published using these sensors. The optode measures absolute oxygen concentration and % saturation using a platinum porphyrin complex in a gas-permeable foil that acts as a dynamic fluorescence quencher, with a red reference LED and integrated thermistor for stability and temperature compensation.
Key features
- Response time <8 s (63%)
- No stirring sensitivity, as the sensor consumes no oxygen
- Lower fouling sensitivity and long-term stability without repeated calibration
- Low pressure effect; insensitive to H2S and freezing
- Three foil types: Pst3, FDO701 and fast response
Applications
Fish farms and aquaculture, waste water, moored ocean observatories, profiling platforms, polar ice studies and hydrothermal vents.
Specifications
| Response time | <8 s (63%) |
|---|
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