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1.
Prilagoditev dajalnika zasuka zahtevam stranke
Matevž Gros, 2023, undergraduate thesis

Abstract: Dajalniki položaja so senzorji, ki se uporabljajo za meritev translatornega premika ali za meritev zasuka ter posledično tudi hitrosti merjenca. Imajo širok spekter uporabe, prevladuje pa vgradnja v različne robote. Stranke za svoje aplikacije občasno potrebujejo prilagojen dajalnik položaja. Poleg tega imajo zaradi različnih potreb željo po izdelavi lastne programske opreme za dajalnike premika ali zasuka. Namen diplomskega dela je prilagoditev dajalnika zasuka AksIM-2 zahtevam stranke in izdelava programske opreme, ki jo lahko stranka prilagodi po lastnih željah. Za zagotovitev pravilnega delovanja dajalnika zasuka smo izvedli teste točnosti in histereze. Programsko opremo smo zasnovali v programskem jeziku Python. Za prikaz delovanja programa smo izdelali demonstracijsko mesto, ki je sestavljeno iz koračnega elektromotorja in nosilca za bralno glavo MB080. Nosilec smo narisali v programski opremi Solidworks, izdelali tehniško risbo, 3D-natisnjen model in rezkan nastavek. Pristop, ki smo ga uporabili za spremembo dajalnika zasuka, bi lahko uporabili tudi v prihodnje, če bi imela kakšna stranka podobne želje. Program je zasnovan tako, da omogoča preprosto nadgrajevanje. Demonstracijsko mesto pa bi lahko bilo uporabljeno za predstavitvene videoposnetke kodirnika AksIM-2.
Keywords: dajalnik položaja, dajalnik zasuka, kodirnik, AksIM-2, točnost, histereza, Python, Solidworks
Published in RUNG: 22.09.2023; Views: 766; Downloads: 10
.pdf Full text (1,73 MB)

2.
Substantial brown carbon emissions from wintertime residential wood burning over France
Yunjiang Zhang, Alexandre Albinet, Jean-Eudes Petit, Véronique Jacob, Florie Chevrier, Gregory Gille, Sabrina Pontet, Eve Chrétien, Marta Dominik-Sègue, Gilles Levigoureux, Griša Močnik, Valérie Gros, Jean-Luc Jaffrezo, Olivier Favez, 2020, original scientific article

Abstract: Brown carbon (BrC) is known to absorb light at subvisible wavelengths but its optical properties and sources are still poorly documented, leading to large uncertainties in climate studies. Here, we show its major wintertime contribution to total aerosol absorption at 370 nm (18–42%) at 9 different French sites. Moreover, an excellent correlation with levoglucosan (r2 = 0.9 and slope = 22.2 at 370 nm), suggesting important contribution of wood burning emissions to ambient BrC aerosols in France. At all sites, BrC peaks were mainly observed during late evening, linking to local intense residential wood burning during this time period. Furthermore, the geographic origin analysis also highlighted the high potential contribution of local and/or small-regional emissions to BrC. Focusing on the Paris region, twice higher BrC mass absorption efficiency value was obtained for less oxidized biomass burning organic aerosols (BBOA) compared to more oxidized BBOA (e.g., about 4.9 ± 0.2 vs. 2.0 ± 0.1 m2 g−1, respectively, at 370 nm). Finally, the BBOA direct radiative effect was found to be 40% higher when these two BBOA fractions are treated as light-absorbing species, compared to the non-absorbing BBOA scenario.
Keywords: Brown carbon, Multi sites, Residential wood burning, Mass absorption efficiency, France
Published in RUNG: 20.07.2020; Views: 3028; Downloads: 0
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