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Kalman filtering real-time measurements of H2O isotopologue ratios by laser absorption spectroscopy at 2.73 microm.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chen, Weidong Kerstel, Erik Fertein, Eric Gao, Xiaoming Koeth, Johannes Rößner, Karl Brückner, Daniela |
| Copyright Year | 2010 |
| Abstract | Kalman adaptive filtering was applied for the first time, to our knowledge, to the real-time simultaneous determination of water isotopic ratios using laser absorption spectroscopy at 2.73 microm. Measurements of the oxygen and hydrogen isotopologue ratios delta(18)O, delta(17)O, and delta(2)H in water showed a 1-sigma precision of 0.72 per thousand for delta(18)O, 0.48 per thousand for delta(17)O, and 0.84 per thousand for delta(2)H, while sampling the output of the tuned Kalman filter at 1 s time intervals. Using a standard running average technique, averaging over approximately 30 s is required to obtain the same level of precision. |
| File Format | PDF HTM / HTML |
| DOI | 10.1364/OL.35.000634 |
| PubMed reference number | 20195302 |
| Journal | Medline |
| Volume Number | 35 |
| Issue Number | 5 |
| Alternate Webpage(s) | https://hal.archives-ouvertes.fr/hal-00563766/file/K-Filtering-H2Oiso-EKfinal.pdf |
| Alternate Webpage(s) | https://hal.archives-ouvertes.fr/hal-00563766/document |
| Alternate Webpage(s) | https://doi.org/10.1364/OL.35.000634 |
| Journal | Optics letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |