An Intrinsically Pressure Insensitive Low Cost Particle Number Diluter Featuring Flow Monitoring

Markus Bainschab, Alexander Bergmann

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Abstract

We present a low cost Particle Number (PN) diluter including mass flow monitoring. The
device consists of a commercial hypodermic needle, a High Efficiency Particulate Air (HEPA) filter.
and a custom‐made flow sensor. The flow sensor is used to monitor the diluter’s performance and
enable in‐time replacement of the low cost elements used. Neither the sampling flow rate nor the
pressure drop drastically change the dilution factor introduced by the presented device. This makes
the presented device especially useful for particle number measurements at positions close to the
tailpipe of internal combustion engine powered vehicles, where aggravating, fast pressure
pulsations complicate correct sampling.
Originalspracheenglisch
TitelAn Intrinsically Pressure Insensitive Low Cost Particle Number Diluter Featuring Flow Monitoring
Seitenumfang6
PublikationsstatusVeröffentlicht - 10 Dez 2018
VeranstaltungEurosensors 2018 - Karl Franzens Universität Graz, Graz, Österreich
Dauer: 9 Sep 201812 Sep 2018
https://www.eurosensors2018.eu

Konferenz

KonferenzEurosensors 2018
LandÖsterreich
OrtGraz
Zeitraum9/09/1812/09/18
Internetadresse

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    Bainschab, M., & Bergmann, A. (2018). An Intrinsically Pressure Insensitive Low Cost Particle Number Diluter Featuring Flow Monitoring. in An Intrinsically Pressure Insensitive Low Cost Particle Number Diluter Featuring Flow Monitoring [981]