DEVICE FOR THE SCATTERED LIGHT MEASUREMENT OF PARTICLES IN A GAS
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United States of America Patent
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Issued Date -
Feb 16, 2023
app pub date -
Feb 5, 2020
filing date -
Feb 5, 2020
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Abstract
A device for scattered light measurement of particles in a gas, comprising a light source, a beam splitter which splits a light beam emitted by the light source into a measuring beam and a reference beam, a light receiving device arranged at a distance from the beam splitter, which comprises at least one lens arranged in the reference beam with an optical axis aligned at an acute angle to the measuring beam, a first light receiver on the side of the lens facing away from the beam splitter, for receiving the scattered light imaged by the latter from a measurement volume in a gas-bearing region between the beam splitter and the lens, and a second light receiver on the side of the lens facing away from the beam splitter for receiving the reference beam imaged by the latter.
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