Matches in SemOpenAlex for { <https://semopenalex.org/work/W2911349966> ?p ?o ?g. }
Showing items 1 to 88 of
88
with 100 items per page.
- W2911349966 abstract "Commercial gas sensors based on quantum cascade laser (QCL) spectroscopy usually rely on a single measurement technique, such as the direct absorption approach, the photoacoustic method, or measuring the dispersion. While each method has its advantages/disadvantages, it is obvious to combine different techniques in a sensor to improve its overall performance which might include its precision, limit of detection, speed but also the concentration range accessible by a given sensor set-up. In this regards a very promising combination of 2f wavelength modulation spectroscopy (2f-WMS) with heterodyne phase sensitive dispersion spectroscopy (HPSDS) is presented. WMS is a direct absorption based technique - within the constraints of the Lambert-Beer law - utilizing laser modulation in order to generate higher harmonics of the absorption signal, thus shifting the measured signal bandwidth to higher frequencies and reducing 1/f noise. HPSDS in contrast relies on quantifying the dispersion induced by the anomalous dispersion close to absorption lines of the target analyte. In contrast to 2f-WMS, HPSDS is independent of the light intensity reaching the detector, which allows to cover a significantly larger concentration range. The simplicity and the benefits of combining these two techniques are demonstrated for carbon monoxide (CO). Furthermore, the sensor is equipped with three additional QCLs for quantifying the analytes nitric oxide (NO), nitrous oxide (NO2) and sulfur dioxide (SO2) in the ppbv range using 2fWMS, making it perfectly suited for ambient air measurements." @default.
- W2911349966 created "2019-02-21" @default.
- W2911349966 creator A5006671083 @default.
- W2911349966 creator A5035790123 @default.
- W2911349966 creator A5038614159 @default.
- W2911349966 creator A5066619232 @default.
- W2911349966 creator A5089248818 @default.
- W2911349966 date "2019-02-01" @default.
- W2911349966 modified "2023-09-26" @default.
- W2911349966 title "Extending the linear concentration range of a multi-gas-analyzer" @default.
- W2911349966 cites W1600892286 @default.
- W2911349966 cites W1976358613 @default.
- W2911349966 cites W1978373285 @default.
- W2911349966 cites W1992516360 @default.
- W2911349966 cites W2004660913 @default.
- W2911349966 cites W2009559493 @default.
- W2911349966 cites W2011438069 @default.
- W2911349966 cites W2023303114 @default.
- W2911349966 cites W2061322158 @default.
- W2911349966 cites W2076972285 @default.
- W2911349966 cites W2079654046 @default.
- W2911349966 cites W2083605726 @default.
- W2911349966 cites W2085077566 @default.
- W2911349966 cites W2306949158 @default.
- W2911349966 cites W2612387648 @default.
- W2911349966 cites W4234952573 @default.
- W2911349966 doi "https://doi.org/10.1117/12.2509331" @default.
- W2911349966 hasPublicationYear "2019" @default.
- W2911349966 type Work @default.
- W2911349966 sameAs 2911349966 @default.
- W2911349966 citedByCount "0" @default.
- W2911349966 crossrefType "proceedings-article" @default.
- W2911349966 hasAuthorship W2911349966A5006671083 @default.
- W2911349966 hasAuthorship W2911349966A5035790123 @default.
- W2911349966 hasAuthorship W2911349966A5038614159 @default.
- W2911349966 hasAuthorship W2911349966A5066619232 @default.
- W2911349966 hasAuthorship W2911349966A5089248818 @default.
- W2911349966 hasConcept C103324678 @default.
- W2911349966 hasConcept C119824511 @default.
- W2911349966 hasConcept C120665830 @default.
- W2911349966 hasConcept C121332964 @default.
- W2911349966 hasConcept C125287762 @default.
- W2911349966 hasConcept C158007255 @default.
- W2911349966 hasConcept C177562468 @default.
- W2911349966 hasConcept C192562407 @default.
- W2911349966 hasConcept C2776957298 @default.
- W2911349966 hasConcept C2777286522 @default.
- W2911349966 hasConcept C32891209 @default.
- W2911349966 hasConcept C49040817 @default.
- W2911349966 hasConcept C520434653 @default.
- W2911349966 hasConcept C62520636 @default.
- W2911349966 hasConcept C6260449 @default.
- W2911349966 hasConcept C94915269 @default.
- W2911349966 hasConcept C97749803 @default.
- W2911349966 hasConceptScore W2911349966C103324678 @default.
- W2911349966 hasConceptScore W2911349966C119824511 @default.
- W2911349966 hasConceptScore W2911349966C120665830 @default.
- W2911349966 hasConceptScore W2911349966C121332964 @default.
- W2911349966 hasConceptScore W2911349966C125287762 @default.
- W2911349966 hasConceptScore W2911349966C158007255 @default.
- W2911349966 hasConceptScore W2911349966C177562468 @default.
- W2911349966 hasConceptScore W2911349966C192562407 @default.
- W2911349966 hasConceptScore W2911349966C2776957298 @default.
- W2911349966 hasConceptScore W2911349966C2777286522 @default.
- W2911349966 hasConceptScore W2911349966C32891209 @default.
- W2911349966 hasConceptScore W2911349966C49040817 @default.
- W2911349966 hasConceptScore W2911349966C520434653 @default.
- W2911349966 hasConceptScore W2911349966C62520636 @default.
- W2911349966 hasConceptScore W2911349966C6260449 @default.
- W2911349966 hasConceptScore W2911349966C94915269 @default.
- W2911349966 hasConceptScore W2911349966C97749803 @default.
- W2911349966 hasLocation W29113499661 @default.
- W2911349966 hasOpenAccess W2911349966 @default.
- W2911349966 hasPrimaryLocation W29113499661 @default.
- W2911349966 hasRelatedWork W1520670375 @default.
- W2911349966 hasRelatedWork W1980565729 @default.
- W2911349966 hasRelatedWork W1991857049 @default.
- W2911349966 hasRelatedWork W2027258953 @default.
- W2911349966 hasRelatedWork W2039193376 @default.
- W2911349966 hasRelatedWork W2082571439 @default.
- W2911349966 hasRelatedWork W2135220664 @default.
- W2911349966 hasRelatedWork W2338501147 @default.
- W2911349966 hasRelatedWork W2537701256 @default.
- W2911349966 hasRelatedWork W2591262057 @default.
- W2911349966 isParatext "false" @default.
- W2911349966 isRetracted "false" @default.
- W2911349966 magId "2911349966" @default.
- W2911349966 workType "article" @default.