Method and system for simultaneously measuring fine particle concentrations PM1, PM2.5 and PM10—particulate matter
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United States of America Patent
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Aug 27, 2019
Grant Date -
Nov 23, 2017
app pub date -
Nov 20, 2015
filing date -
Nov 21, 2014
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Abstract
A method for measuring, in particular simultaneously measuring, different particle concentrations, in particular particulate matter concentrations, preferably in a flow, using a particle measuring system, in particular a particulate matter measuring system, comprising a photometric scattered light unit (1) with a measurement volume (16), wherein the scattered light unit (1) consists of at least one light transmitter (7) which emits (13) light signals, in particular pulsed light signals, and of at least one light-sensitive receiver system (8), which is arranged at at least one angle (15) and which receives the scattered light (14) from the particles (12) forming the particle concentration, characterized in that the scattered light unit (1) with measurement volume (16) is hermetically sealed with the exception of at least one fluid inlet (1a) and/or at least one fluid outlet (1b), which are provided with blocking devices (2, 3), wherein a sample of the fluid to be examined is applied to the scattered light unit (1) with measurement volume (16) and a predeterminable first number of measurement values is recorded.
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