Considerations for Oxygen Measurement
Our initial knowledge of oxygen comes from its behavior as a single gas component of the air in our atmosphere. This series of articles explores the composition of our atmosphere along with external factors such as the role pressure plays in determining the density of a single gas, oxygen, in our atmosphere.
What is Atmospheric Pressure?
Understanding atmospheric pressure is the first step to understanding partial pressure measurements of gases such as oxygen. This article defines atmospheric pressure and the various units of measure for pressure.
Composition of the Atmosphere
The air in our atmosphere is composed of many different gases. Recognizing these gases is the first step towards understanding how they interact with each other and our molecule of interest - oxygen.
Saturated Vapor Pressure
As oxygen is present in both liquid and gas phases, the concept of saturation becomes important to understand. Saturation is impacted by both temperature and pressure as discussed in the following article.
Partial Pressure / Absolute Pressure
Polarographic and optical oxygen sensors work on the principle of partial pressure. What is partial pressure and how does altitude impact atmospheric pressure?
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