Oxygen sensors play a vital role in ensuring the safety of employees and users at the National High Magnetic Field Laboratory. While most oxygen sensors have accurate and linear responses in nitrogen/argon environments, studies have highlighted a phenomenon in helium-air mixtures with certain types of oxygen sensors. A controlled experiment was performed to observe the behavior of two types of oxygen sensors: orifice and membrane. The orifice sensor showed a large deviation of up to 13% of measured reading above the actual oxygen content in the helium-air mixture test, while the membrane sensor remained accurate to within 3% of the actual value throughout its range.

氧气传感器在确保国家高磁场实验室的员工和用户安全方面发挥着至关重要的作用。尽管大多数氧气传感器在氮气/氩气环境中具有准确且线性的响应，但研究突出显示了使用某些类型的氧气传感器的氦气混合物中的现象。进行了对照实验，以观察两种类型的氧气传感器的行为：孔板和膜。孔口传感器在氦气混合物测试中显示出比实际氧气含量高出高达13％的测量读数的较大偏差，而膜传感器在整个范围内都保持在实际值的3％以内。