Blue’s instruments are based on one main scientific principle: infrared spectrometry.
Each species of gas has its unique infrared spectrum -or signature- which, when detected and selected from the signature of the other species, can be used to quantify the gas by using algorithms.
While infrared spectrometry is well-known and is the basis of many gas analyzers around the world, Blue’s unique Very High Resolution Tunable Laser source (VHR-TL) technology gives it a whole new range of possibilities. Most current ppb-level analyzers will target a narrow window over the gas signature –typically up to a few nanometers- tied to the laser source specifications, and will require very high laser sensitivity in order to reach ppb level and beyond.
Thanks to the wide tunable range of the VHR-TL (1,600 wavenumbers in the current version), Blue’s analyzers open a wide door over the gas signatures. VHR-TL works as if you had hundreds of accurate parallel laser sources – except there is only one.
What can you do with this?
Laser based gas analyzers are appreciated for their robustness, their real-time measurement capabilities, and performance. They provide value-add solutions for process analytics and environmental monitoring. Laser-based gas analyzers are however limited because of their narrow tunability: usually only light molecules can be measured, and one laser will measure only one molecule.
Blue’s VHR-TL technology greatly expands the capabilities and application range of laser based gas analyzers:
- measures hundreds of molecules including heavy compounds
- measures multiple molecules in real-time, all with a single source
- provides specific measurements even in complex matrices thanks to its very high spectral resolution (0.01 wavenumbers).