Title:
粒子状物質センサーデバイス
Document Type and Number:
Japanese Patent JP7179057
Kind Code:
B2
Abstract:
A particulate matter sensor device comprises an enclosure (21) defining a flow channel (2) between a primary flow inlet (11) and a flow outlet (12), a radiation source (3) for emitting radiation into the flow channel for interaction of the radiation with particulate matter in an aerosol sample in the flow channel, and a radiation detector (4) for detecting at least part of said radiation after interaction with the particulate matter. An additional flow opening (511, 511a, 512, 513, 514) creates an additional flow into the flow channel. The additional flow opening is arranged in a wall section that radially delimits the flow channel upstream of the radiation detector and/or of the radiation source and being configured to create its additional flow so that the additional flow sheaths the radiation detector and/or the radiation source.
Inventors:
Frank Gutre
Ulrich Leidenberger
Jericho Mukalika
Stephan Kostner
Stefan Thiele
Ulrich Leidenberger
Jericho Mukalika
Stephan Kostner
Stefan Thiele
Application Number:
JP2020514900A
Publication Date:
November 28, 2022
Filing Date:
March 13, 2018
Export Citation:
Assignee:
Sensirion AG
International Classes:
G01N15/14
Domestic Patent References:
| JP2004264146A | ||||
| JP2014228276A | ||||
| JP4353748A |
Foreign References:
| WO2008105726A1 | ||||
| US20160077218 | ||||
| CN104266948A | ||||
| US20090039249 |
Attorney, Agent or Firm:
Patent Attorney Corporation Peace International Patent Office