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--- do_measurementprinciple [31/03/2015 13:34]
pieter [Temperature effects on the probe output]
+++ do_measurementprinciple [31/03/2015 13:35]
pieter [Measurement probe]
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 The dissolved Oxygen electrode is a galvanic MPOD (Membrane-covered Polarographic Oxygen Detector) system.  They provide a convenient approach to an essential direct measurement of molecular oxygen. The membrane isolates the electrode from the sample and the oxygen is detected as it diffuses across the membrane. The probe can be used to measure any system where oxygen is present. Calibration of the sensor is readily achieved if the oxygen concentration or solubility at a specific condition is known.
-=====Measurement probe=====
+=====Galvanic probe=====
 A galvanic MPOD consists internally of two metals of different nobility which serve as electrodes. The more noble metal is the cathode (Silver, Platinum or Gold), the other (Lead or Zinc) is the anode. In the presence of an electrolyte, a voltage around 800 mV is produced between the two metals.

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