公开(公告)号：US20220291091A1

公开(公告)日：2022-09-15

申请号：US17636156

申请日：2020-08-21

Applicant: PRODRIVE TECHNOLOGIES INNOVATION SERVICES B.V.

Inventor： Ralph Pernell VAN CAUTER ,  Djarek Hendrikus Josephus Maria VAN DEN HOOGEN

IPC: G01N1/22

Abstract: A sampler device for sampling gas for a particle concentration sensor from a flow, includes a first chamber having a first inlet and a first outlet and defining a main flow direction of a gas stream between the first inlet and the first outlet. A second inlet and a second outlet are configured to provide a sink and a source of a sample gas stream, respectively. The second inlet and the second outlet are provided in the first chamber at a first position and a second position, respectively. The first position and the second position overlap along the main flow direction. The first chamber is configured for providing a laminar flow of the gas stream at the first position and the second position.