AE36s creates breakthrough aerosol research. Extended wavelength range offers high-quality data for carbonaceous aerosols, and provides advanced Black Carbon source apportionment and Brown Carbon analysis. AE36s enables the broadest range of studies yet, with low resources. It is based upon decades of scientific work and experience of thousands of installations and studies globally.
AE36s omogoča prebojne raziskave aerosolov. Razširjen obseg valovnih dolžin ponuja visokokakovostne podatke za ogljikove aerosole ter omogoča napredno dodelitev virov črnega ogljika in analizo rjavega ogljika. AE36s omogoča najširši nabor študij doslej, pri čemer porabi malo virov. Temelji na desetletjih znanstvenega dela in izkušnjah tisočih namestitev in študij po vsem svetu.
9 λ, 340 – 950 NM, CHARACTERIZATION OF LIGHT-ABSORBING AEROSOL
REAL-TIME BROWN CARBON ANALYSES
TIME BASE 1S
DUALSPOT TECHNOLOGIJA
ODPOREN NA SPREMEMBE RELATIVNE VLAŽNOSTI
PRIKAZ PODATKOV V REALNEM ČASU
PROCEDURA SAMOČIŠČENJA
POVEZLJIVOST
AVTOMATSKA VALIDACIJA PODATKOV
The Aethalometer® collects and analyzes aerosol particles continuously. Konstantni pretok zraka poln aerosolov je speljan na mesto filtrskega traku. Hkrati filtrski trak osvetljujemo s svetlobo. Občutljivi detektorji merijo intenziteto svetlobe, ki se prenaša skozi del, kjer je vzorec ter skozi del traku brez vzorca. Slednji deluje kot referenca. S tem ko se vzorec aerosolov nabira na filtrskem traku, se intenziteta svetlobe, ki jo prepušča vzorec, postopoma zmanjšuje. Zmanjšanje jakosti svetlobe od enega trenutka do drugega lahko interpretiramo kot nabiranje vzorca na mestu meritve same. Ta povečana količina se deli z znanim volumskim pretoka zraka. Preko tega se potem izračuna koncentracija črnega ogljika v zraku.
Analiza v realnem času se izvaja pri 9 optičnih valovnih dolžinah, od ultravijolične (340 nm) do bližnje infrardeče (950 nm), kar omogoča porazdelitev virov - glej spodaj - za ločevanje izpušnih plinov iz prometa ali dizelskih motorjev od gorenja biomase (lesni dim, gozdni požari, kuhalnice ...) in izračune rjavega ogljika.
We have extended wavelengths where it counts, in the ultraviolet range, starting from 340 nm. This offers new and unique measurements for breakthrough research of light-absorbing aerosols. High-quality data, in high time resolution, enables detailed and flexible analytical capabilities, and the broadest range of Black and Brown Carbon studies yet. Thanks to DualSpot, Automatic data validation, Self-cleaning procedure, and other valuable features, AE36s requires minimal resources to get valuable and insightful data. Advanced apportionment and component algorithms provide detailed insights into Black Carbon sources and the nature of light-absorbing aerosols. This Aethalometer can shed new light on particles contributing to climate change and adverse effects on human health.
Imamo razširjene valovne dolžine tam, kjer je pomembno, v ultravijoličnem območju, začenši pri 340 nm. To ponuja nove in edinstvene meritve za prebojne raziskave svetlo-absorbirajočih aerosolov. Visokokakovostni podatki, z visoko časovno ločljivostjo, omogočajo podrobne in prilagodljive analitične sposobnosti ter najširši nabor študij črnega in rjavega ogljika doslej. Zahvaljujoč funkcijam DualSpot, samodejne preverbe podatkov, postopku samočiščenja in drugim dragocenim funkcijam, AE36s zahteva minimalne vire za pridobivanje dragocenih in poglobljenih podatkov. Napredne metode dodelitve virov in komponent nudijo podrobne vpoglede v vire črnega ogljika in naravo svetlo-absorbirajočih aerosolov. Ta aetilometer lahko razjasni delce, ki prispevajo k podnebnim spremembam in neugodnim učinkom na zdravje ljudi.
Koristi
The Aethalometer® AE36s provides real-time monitoring, quantitation, and speciation of Black and Brown Carbon and gives unique opportunity for:
New wavelengths for improved characterization of Brown Carbon
To improve the real-time characterization of Brown Carbon absorption, two additional wavelengths are introduced in the AE36s: the 400 nm enhances the resolution of absorption in the gap between 370 nm and 470 nm; the 340 nm extends the measurement range in the UV spectrum.
Aerosol light absorption measurements are crucial for evaluating the impact of aerosols and their mixing state on radiative forcing. Absorption spectral dependence can be described by the absorption Ångström exponent, which is used to characterize the light absorbing aerosols: Black Carbon and Brown Carbon and their sources.
AE36s provides new dimensions to the research of Brown Carbon, properties of aerosols at new wavelengths, comparison to measurements at fluid state, determination of mass absorption cross section and many more.
AE36s can maintain its incomparable accuracy and stability in different environmental conditions - 500% improvement. Relative humidity changes are affecting the performance of all filter-based instruments. Fluctuating relative humidity levels, e.g., due to air conditioning, can cause variations in characteristic of the filter tape, which can lead to inaccurate measurements. However, AE36s is designed to be robust against relative humidity changes and RH compensation mechanism enables reliable and accurate performance in varying environments.
AE36s is designed to provide a multitude of valuable and insightful data, while requiring minimal resources. Real-time data visualization provides a quick glance at the most important data for the last week. Samočistilni postopek vam zagotavlja varnost, saj zmanjšuje nabiranje umazanije in drugih onesnaževalcev, ki lahko vplivajo na kakovost podatkov. Številne varnostne in diagnostične funkcije poskrbijo za optimalno delovanje instrumenta, hkrati pa omogočajo popoln nadzor nad instrumentom in kakovostjo podatkov. Uveden je nov nadzor stanja za samodejno preverjanje podatkov, kar zagotavlja najboljšo podlago za zanesljivo in natančno analizo podatkov ter poročanje. AE36s is ready to be seamlessly connected wherever you are, using the RAS module in updated CAAT software.
PATENTIRANA SAMODEJNA KOMPENZACIJA UČINKA OBREMENITVE FILTRA
Zbiranje in analiza vzorcev se izvajata na dveh mestih filtrskega traku hkrati z različnima pretokoma. Mathematical combination of the data eliminates the filter loading effect and provides continuously corrected data in real time with no discontinuities at filter advances.
Ta kompenzacija je zelo odvisna od sestave in lastnosti aerosola. Določiti ga je treba v realnem času na podlagi merilnih podatkov, saj ga ni mogoče vnaprej predvideti.
Parametri, pridobljeni s to analizo, omogočajo tudi dodaten vpogled v sestavo in staranje aerosolov.
The Aethalometer® analyzes the sample at 9 optical wavelengths from the ultraviolet (340 nm) to the near-infrared (950 nm). Optical absorption by different aerosol components have different variations across the spectrum: most notably, the differences between diesel exhaust and emissions from biomass burning. The 9-wavelength data allows for a separation of these components, providing a real-time speciation of the aerosol sources and a determination of their origins.
The Aethalometer® source apportionment algorithm uses filter loading compensated data (DualSpot) considering different loading effect across the spectrum, resulting in true and accurate real-time source apportionment.
AE36 je mogoče kombinirati z analizatorjem celotnega ogljika TCA08 v sistem CASS (Carbonaceous Aerosol Speciation System): revolucionarni analizator OC/EC, ki meri:
Z uporabo napredne metode TC/BC(λ) je mogoče s sistemom CASS spremljati celoten prstni odtis ogljikovih aerosolov, vključno s primarnimi in sekundarnimi organskimi aerosoli.
HIGH TIME RESOLUTION (1 HZ) ANALYTICAL RESPONSE
Sampling, analysis, and all calculations are performed at a fundamental rate of 1 Hz. Standard reporting time base of 1 second or 1 minute permit the identification of temporal patterns and the study of direct emission sources such as engines, stoves, etc. Data may be aggregated into averages of 1 hour, or other intervals, for air-quality reporting. All data and internal diagnostics are stored internally with an instrument capacity of many years.
Potrjevanje podatkov je bistveni del zagotavljanja in nadzora kakovosti (QA/QC). Samodejno preverjanje podatkov odpravlja potrebo po ročnem preverjanju podatkov, ki je lahko zamudno in nagnjeno k človeškim napakam. Uvedene so nove kontrole stanja za samodejno potrjevanje podatkov, ki zagotavlja najboljšo podlago za zanesljivo in natančno analizo podatkov ter poročanje.
Optično zmogljivost etalometra je mogoče potrditi s kompletom optičnih filtrov nevtralne gostote, ki ga sestavljajo štirje točno določeni optični elementi, katerih absorpcija je sledljiva po temeljnih standardih. Meritve in analiza se izvede pri vseh valovnih dolžinah in le-te primerja z izvirnimi referenčnimi vrednostmi. Vgrajene so procedure za rutinsko preverjanje stabilnosti in tesnenja. Te lastnosti zagotavljajo pravilno delovanje, ki je bistvenega pomena za rutinske meritve in uporabo v raziskavah.
The Aethalometer® is the instrument most-used in the world for research of absorption optical properties of aerosols and Black Carbon. Thousands of studies have been carried out with Aethalometer that contribute to science and raise awareness of carbonaceous aerosols and their impact on human health and climate change.
