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luminescence brightness than competing products working with
blue light excitation. Therefore, the duration of the red flash for a
single oxygen measurement could be decreased from typically 100
ms to now typically 10 ms, significantly decreasing the light dose
exposed to the measuring setup. Further, due to the excellent
luminescence brightness of the
REDFLASH indicator
, the actual
sensor matrix can be now prepared much thinner, leading to fast
response times of the
PyroScience
oxygen sensors.
The measuring principle is based on a sinusoidally modulated red
excitation light. This results in a phase-shifted sinusoidally
modulated emission in the NIR. The
FireStingO2
measures this
phase shift (termed “dphi” in the software). The phase shift is then
converted into oxygen units based on the Stern-Vollmer-Theory.
