Gas Detection

  • Space age oxygen sensing technology

Space age oxygen sensing technology

Jun 03 2020 Read 453 Times

Pyroscience’s FDO2 oxygen sensor is a factory calibrated, robust, accurate, fast response, long lasting and almost maintenance free oxygen sensor. It has proven itself in a wide variety of applications including being tested and integrated by NASA in Mars Rover 2020!

This user-friendly sensor is used for demanding gas sensing applications, such as oxygen gas monitoring in glove boxes, portable equipment, exhaust gases and more. Although the form factor is similar to conventional electro-galvanic oxygen sensors (oxygen fuel cells), the sensor operates in a completely different way with an optical principle. The optical measurement is based on a proprietary luminescent sensor dye from PyroScience, which is sensitive to oxygen partial pressure. This principle is very reliable and shows virtually no interferences to other gases additionally, FDO2’s highly hydrophobic sensing surface ensures that water droplets do not affect the measurement.

The FDO2 usually lasts for 5 years or longer, based on a 2 second sample interval and 60% operational time, unlike electro-galvanic oxygen sensors with their very limited shelf and operation life. Optics and electronics are hermetically sealed from the measured gas and the sensing surface is highly hydrophobic, so water droplets do not disturb the measurement. This sensor has a fast response time (t63 <2 sec), with low level of drift (typically < 1% O2/year at 21% O2), a wide measuring range (0 -100% O2, up to 200% O2 on request) and low energy consumption (3.3V, typically 8mA). It also offers linearity over the full oxygen range and sensor lifetime.

The flow-through cell FDO2-FTC enables simple integration in a variety of gas-streams. The FDO2’s USB cable comes together with versatile evaluation software and this unit also has full RoHS compliancy (lead/Pb free).

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