Sökning: "tunable diode laser absorption spectroscopy"
Visar resultat 1 - 5 av 6 uppsatser innehållade orden tunable diode laser absorption spectroscopy.
1. Tunable diode laser absorptionspectroscopy of atomic potassium in a KOH-seeded flat flame
Master-uppsats, Umeå universitet/Institutionen för fysikSammanfattning : Potassium (K) is the main ash-forming element released from biomass during thermochemical conversion. A better understanding of K chemistry and monitoring of K species is needed to optimize combustion systems. LÄS MER
2. Optimization of measurement geometry for GASMAS lung function monitoring of infants
Master-uppsats, Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionenSammanfattning : A technique for measuring oxygen concentration in the lungs of preterm infants is one of the latest advancements in neonatal care. It is called GAs in Scattering Media Absorption Spectroscopy (GASMAS) and enables non-invasive, bed-side monitoring of the lung function of our most fragile patients, preterm newborns. LÄS MER
3. Diode laser spectroscopy for oxygen detection in the lungs of infants
Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/AtomfysikSammanfattning : This thesis work is part of a larger project with final goal to be able to measure the oxygen concentration in the lungs of infants, using non-invasive laser spectroscopy. This thesis is specifically dealing with simulations of light transport through the upper body of infants, as well as constructing a tissue-like model (phantom) that can be used in experiments. LÄS MER
4. Tunable diode laser frequency stabilization and its applications in temperature measurement
Master-uppsats, Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionenSammanfattning : The frequency of two external cavity diode lasers tuned to the two transitions at 410 nm and 451 nm of indium are stabilized in this thesis. A hollow cathode lamp of indium atoms is used as a low pressure source of indium atoms in the locking process. LÄS MER
5. Simultaneous detection of potassium, water vapor and temperature with tunable diode laser absorption spectroscopy
Master-uppsats, Umeå universitet/Institutionen för fysikSammanfattning : Existing tunable diode laser absorption spectroscopy (TDLAS) sensors for potassium (K) and for water vapor (H2O) and temperature were combined to enable simultaneous measurements in combustion and gasification processes. In-situ real-time detection of the above mentioned combustion parameters will improve the understanding of ash-formation during thermochemical conversion of biomass. LÄS MER
