FIELD: chemistry.
SUBSTANCE: method of measuring oxygen concentration in gas mixtures includes optical excitation of dye molecules by a scheme of recording dynamic holographic gratings, oxygen quenching of triplet states of the said molecules and measurement of oxygen concentration. Measurement of oxygen concentration is carried out by registration of intensity and spectrum of radiation, generated by a laser with a distributed feedback, pumping of which is realised through a recorded holographic grating.
EFFECT: increased sensitivity of measurement of oxygen concentration in gas mixtures, distance of measurement of molecular oxygen.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING OXYGEN CONCENTRATION IN GASES | 2007 |
|
RU2349902C1 |
| LASER SYSTEM FOR DETECTING EMERGENCY OPERATION OF A NUCLEAR REACTOR | 2021 |
|
RU2766300C1 |
| PHOTOEXCITED LASER INTEGRATED OPTICAL SENSOR | 2018 |
|
RU2697435C1 |
| METHOD FOR DETERMINING CONCENTRATION OF OXYGEN IN LIQUIDS AND GASES | 0 |
|
SU1712839A1 |
| METHOD OF OPTICAL DIAGNOSTICS OF PATHOLOGIES IN BIOLOGICAL TISSUES | 2017 |
|
RU2672478C1 |
| METHOD FOR GENERATING STIMULATED RADIATION ON IODINE ATOMS | 2003 |
|
RU2248652C2 |
| PROCEDURE DETERMINING CONCENTRATION OF MOLECULAR IODINE IN GASES | 2001 |
|
RU2181197C1 |
| PROCEDURE DETERMINING SPATIAL DISTRIBUTION OF PHYSICAL PARAMETERS OF GAS ATMOSPHERE | 1999 |
|
RU2167409C2 |
| METHOD DETERMINING SPATIAL DISTRIBUTION OF PHYSICAL PARAMETERS OF GAS ATMOSPHERE | 1999 |
|
RU2167408C2 |
| LASER SYSTEM FOR MONITORING THE ATMOSPHERE IN THE REGION OF A NUCLEAR POWER PLANT | 2022 |
|
RU2790391C1 |
