公开(公告)号：WO2017054098A1

公开(公告)日：2017-04-06

申请号：PCT/CH2016/000120

申请日：2016-09-16

Applicant: SENSIRION AG

Inventor： LU, Dengjun ,  SINGH, Baljot ,  TALWAR, Deepak ,  MICALIZZI, Paolo ,  SHI, Yuchen ,  KOSTNER, Stefan

IPC: G01N15/14 ,  G01N15/02 ,  G01N21/53 ,  G01N1/22

CPC classification number: G01N15/0211 ,  G01J2001/0481 ,  G01N15/1436 ,  G01N15/1459 ,  G01N2001/021 ,  G01N2001/2276 ,  G01N2015/0046 ,  G01N2015/03 ,  G01N2015/0693 ,  G01N2015/1486 ,  G01N2015/1493 ,  G01N2201/065

Abstract: An optical particle counter ( 100 ) includes a light source, an integrating sphere (104), a light stop (105), a photo-detector (106), a channel for air inlet ( 107 ), and a channel for air outlet (108). The light source is arranged to focus the light beam in the center of the integrating sphere (104), The light stop (105) is arranged to stop the light beam after exiting the integrating sphere (104 ). The channels for air inlet (107) and outlet ( 108 ) are configured to allow an aerosol sample to enter the integrating sphere ( 104 ), cross the light beam, and exit.

Abstract translation: 光学粒子计数器（100）包括光源，积分球（104），光停止（105），光检测器（106），用于进气口（107）的通道和用于空气出口的通道 108）。 光源设置成将光束聚焦在积分球（104）的中心。光停止器（105）布置成在离开积分球（104）之后停止光束。 空气入口（107）和出口（108）的通道被配置为允许气溶胶样品进入积分球（104），穿过光束并离开。

公开(公告)号：WO2020239515A1

公开(公告)日：2020-12-03

申请号：PCT/EP2020/063879

申请日：2020-05-19

Applicant: SENSIRION AG

Inventor： MOELLER, Nicolas ,  HORNUNG, Mark ,  THIELE, Stefan ,  LEIDENBERGER, Patrick ,  KOSTNER, Stefan

IPC: G01R1/00 ,  G01N1/22

Abstract: A duct probe (20) for sampling a fluid from a main fluid flow (Fm) in a duct (10) defines an elongated supply channel (21) and an elongated discharge channel (22). The supply channel has at least one inflow opening (23) for diverting a partial flow (Fp) from the main fluid flow into the supply channel, and the discharge channel has at least one outflow opening for returning the partial flow from the discharge channel into the main fluid flow after it has passed an environmental sensor (30). The duct probe further comprises at least one compensation opening (26) that connects the supply channel and the discharge channel in a region that is located between their closed and open ends. By the presence of the compensation opening (26), a jet flow (Fj) is created, which acts to reduce a pressure difference between the supply channel and the discharge channel when the duct probe is exposed to the main fluid flow (Fm).

公开(公告)号：WO2022214198A1

公开(公告)日：2022-10-13

申请号：PCT/EP2021/059323

申请日：2021-04-09

Applicant: SENSIRION AG

Inventor： NIEDERBERGER, Dominik ,  STUDER, Nico ,  RÜFFER, Daniel ,  LEUENBERGER, Dominik ,  GÜTLE, Frank ,  KRÄHENBÜHL, Thomas ,  MRCARICA, Zeljko ,  HOPPENAU, Lukas ,  KOSTNER, Stefan

IPC: G01N1/22 ,  G01N15/02 ,  G01N15/06

Abstract: A sensor device (10) comprises an environmental sensor (22) for determining an environmental parameter associated with a sensor gas flow (F2) through the sensor device. The environmental sensor may be a particulate matter sensor for detecting particulate matter in the sensor gas flow. The sensor gas flow is preheated upstream of the environmental sensor (22). To this end, waste heat generated by the environmental sensor (22) itself and/or by a different sensor (12) that is comprised in the sensor device is used. In this manner, the effects of evaporable droplets in the sensor gas flow (F2), as typically present in fog, may be reduced. In some embodiments, a fog signal is derived.

公开(公告)号：WO2018100209A2

公开(公告)日：2018-06-07

申请号：PCT/EP2018/056243

申请日：2018-03-13

Applicant: SENSIRION AG

Inventor： GÜTLE, Frank ,  LEIDENBERGER, Ulrich ,  MRCARICA, Željko ,  KOSTNER, Stefan ,  THIELE, Stefan

IPC: G01N15/14

Abstract: A particulate matter sensor device comprising an enclosure (21) that comprises a flow inlet (11), a flow outlet (12) and a flow channel (2) extending therebetween, a radiation source for emitting radiation into the flow channel (2) for interaction of the radiation with the particulate matter in the flow (20) of an aerosol sample when guided through the flow channel (2), a radiation detector (4) for detecting at least part of said radiation after interaction with the particulate matter. The sensor device comprises a flow modifying device (511) arranged upstream of the radiation detector (4) and/or of the radiation source (3) for modifying the flow (20) for reducing particulate matter precipitation onto the radiation detector (4) and/or onto the radiation source (3) and/or the channel wall sections in close proximity to the detector (4) and/or source (3). The invention also relates to a method of determining parameters of particulate matter in an aerosol sample by using such a particulate matter sensor device.

公开(公告)号：WO2018100209A3

公开(公告)日：2018-06-07

申请号：PCT/EP2018/056243

申请日：2018-03-13

Applicant: SENSIRION AG

Inventor： GÜTLE, Frank ,  LEIDENBERGER, Ulrich ,  MRCARICA, Željko ,  KOSTNER, Stefan ,  THIELE, Stefan

IPC: G01N15/14 ,  G01N15/00 ,  G01N15/02 ,  G01N15/10 ,  G01N1/22 ,  G01N15/06

Abstract: A particulate matter sensor device comprising an enclosure (21) that comprises a flow inlet (11), a flow outlet (12) and a flow channel (2) extending therebetween, a radiation source for emitting radiation into the flow channel (2) for interaction of the radiation with the particulate matter in the flow (20) of an aerosol sample when guided through the flow channel (2), a radiation detector (4) for detecting at least part of said radiation after interaction with the particulate matter. The sensor device comprises a flow modifying device (511) arranged upstream of the radiation detector (4) and/or of the radiation source (3) for modifying the flow (20) for reducing particulate matter precipitation onto the radiation detector (4) and/or onto the radiation source (3) and/or the channel wall sections in close proximity to the detector (4) and/or source (3). The invention also relates to a method of determining parameters of particulate matter in an aerosol sample by using such a particulate matter sensor device.