公开(公告)号：US11703437B2

公开(公告)日：2023-07-18

申请号：US16629857

申请日：2018-07-13

申请人： Pegasor Oy

发明人： Antti Rostedt ,  Jorma Keskinen ,  Erkka Saukko ,  Kauko Janka

IPC分类号： G01N15/06 ,  B03C3/017 ,  B03C3/41 ,  B03C3/49 ,  G01N15/00

CPC分类号： G01N15/0656 ,  B03C3/017 ,  B03C3/41 ,  B03C3/49 ,  G01N2015/0046

摘要： The invention relates to a method and an apparatus for measuring particle concentrations in an aerosol. The apparatus comprises means (103) for driving flow (105) into apparatus (101), means (115) for electrically charging particles (109) to become electrically charged particles (123) by ions (113) produced by a charger, means (117) for removing free ions (113) which are not attached to the electrically charged particles (123), and means (119) for measuring electrical current carried by the electrically charged particles (123). The means (115) for charging the particles and the means (119) for measuring electrical current carried by the electrically charged particles (123) are dimensioned such that the means (119) for measuring electrical current carried by the electrically charged particles (123) only measures a part of a total current carried by the particles.

公开(公告)号：US20180342380A1

公开(公告)日：2018-11-29

申请号：US15772774

申请日：2016-11-02

申请人： Pegasor Oy

发明人： Kauko Janka

IPC分类号： H01J49/00

CPC分类号： H01J49/0027 ,  G01N1/2211 ,  G01N1/2273 ,  G01N1/38 ,  G01N15/0656 ,  G01N2001/2223 ,  G01N2001/387 ,  G01N2015/0038 ,  G01N2015/0046

摘要： The present invention relates to an apparatus (1) for particle measurement. The apparatus (1) comprising a mixing chamber (16) having a sample inlet (14), an ionized gas outlet (12) for feeding ionized clean gas into the mixing chamber (16), and a mixing chamber outlet (18) for discharging mixed sample aerosol formed in the mixing chamber (16). The apparatus further comprises a sample channel (34) connected to the sample inlet (14) and extending in a first supply direction, a sample supply connection (50) arranged to supply sample aerosol to the sample channel (34) and a sample supply channel (52) connected to the sample supply connection (50) in a second supply direction transverse to the first supply direction. The sample supply connection (50) is arranged to supply the sample aerosol from the sample supply channel (52) to the sample channel (34) as a swirling sample aerosol flow.

公开(公告)号：US10760997B2

公开(公告)日：2020-09-01

申请号：US15772765

申请日：2016-11-02

申请人： Pegasor Oy

发明人： Kauko Janka ,  Erkka Saukko

IPC分类号： G01N1/22 ,  G01N15/06 ,  G01N27/70 ,  B03C3/68 ,  G01N15/00

摘要： The present invention relates to an apparatus (1) and process for measuring characteristics of a particle flow. The measuring is done with two different cut-off diameters of a particle trap (13) of which one cut-off diameter is adjusted based on the measured particle characteristics.

公开(公告)号：US20180238777A1

公开(公告)日：2018-08-23

申请号：US15772765

申请日：2016-11-02

申请人： Pegasor Oy

发明人： Kauko Janka ,  Erkka Saukko

IPC分类号： G01N1/22 ,  G01N15/06

摘要： The present invention relates to an apparatus (1) and process for measuring characteristics of a particle flow. The measuring is done with two different cut-off diameters of a particle trap (13) of which one cut-off diameter is adjusted based on the measured particle characteristics.

公开(公告)号：US20210140868A1

公开(公告)日：2021-05-13

申请号：US16629857

申请日：2018-07-13

申请人： Pegasor Oy

发明人： Antti Rostedt ,  Jorma Keskinen ,  Erkka Saukko ,  Kauko Janka

IPC分类号： G01N15/06 ,  B03C3/017 ,  B03C3/41 ,  B03C3/49

摘要： The invention relates to a method and an apparatus for measuring particle concentrations in an aerosol. The apparatus comprises means (103) for driving flow (105) into apparatus (101), means (115) for electrically charging particles (109) to become electrically charged particles (123) by ions (113) produced by a charger, means (117) for removing free ions (113) which are not attached to the electrically charged particles (123), and means (119) for measuring electrical current carried by the electrically charged particles (123). The means (115) for charging the particles and the means (119) for measuring electrical current carried by the electrically charged particles (123) are dimensioned such that the means (119) for measuring electrical current carried by the electrically charged particles (123) only measures a part of a total current carried by the particles.

公开(公告)号：US10424469B2

公开(公告)日：2019-09-24

申请号：US15772774

申请日：2016-11-02

申请人： Pegasor Oy

发明人： Kauko Janka

IPC分类号： G01N15/06 ,  G01N1/22 ,  H01J49/00 ,  H01J49/14 ,  G01N1/38 ,  G01N15/00

摘要： The present invention relates to an apparatus (1) for particle measurement. The apparatus (1) comprising a mixing chamber (16) having a sample inlet (14), an ionized gas outlet (12) for feeding ionized clean gas into the mixing chamber (16), and a mixing chamber outlet (18) for discharging mixed sample aerosol formed in the mixing chamber (16). The apparatus further comprises a sample channel (34) connected to the sample inlet (14) and extending in a first supply direction, a sample supply connection (50) arranged to supply sample aerosol to the sample channel (34) and a sample supply channel (52) connected to the sample supply connection (50) in a second supply direction transverse to the first supply direction. The sample supply connection (50) is arranged to supply the sample aerosol from the sample supply channel (52) to the sample channel (34) as a swirling sample aerosol flow.

公开(公告)号：US09574986B2

公开(公告)日：2017-02-21

申请号：US14379676

申请日：2013-02-07

申请人： Pegasor Oy

发明人： Kauko Janka

IPC分类号： G01N15/06 ,  H01T23/00 ,  G01N15/00

CPC分类号： G01N15/06 ,  G01N15/0656 ,  G01N2015/0026 ,  H01T23/00

摘要： Apparatus (1) for generating acknowledged flow (Q), comprising a first passage (2) with ends (3,4) for acknowledged flow (Q) inlet and outlet, a discharge electrode (5) for generating airborne unipolar ions (8) positioned inside the first passage (2), a counter electrode (6) adapted to attract said airborne ions (8), thereby being adapted to cause a net flow (7) of airborne ions (8) and thereby generating an airflow (Q) in the direction of the net flow of airborne ions (8), sensing element (12, 13), the output of which is a function of the concentration of the airborne electric charge (8, 11), means (17) for switching or modulating a parameter which affects the output of the sensing element (12,13) and means for determining the volumetric flow (Q) on the basis of the time response which switching or modulation creates to the sensing element (12,13) output. 11. Use of apparatus (1) as described in the previous claims for determining ultrafine particle concentration. Process for generating acknowledged flow.

摘要翻译： 用于产生确认流（Q）的装置（1），包括用于确认流量（Q）入口和出口的具有端部（3,4）的第一通道（2），用于产生空气传播单极离子（8）的放电电极（5） 位于所述第一通道（2）的内部，适于吸引所述空气传播离子（8）的对电极（6），从而适于引起空气传播离子（8）的净流（7），从而产生空气流（Q） 在空气传播离子（8）的净流动方向上，其输出是机载电荷（8,11）的浓度的函数的感测元件（12,13），用于切换或 调制影响感测元件（12,13）的输出的参数和用于基于切换或调制对感测元件（12,13）输出产生的时间响应来确定体积流量（Q）的装置。 11.如前述权利要求中所述的装置（1）的用途，用于确定超细颗粒浓度。 生成确认流程的过程。

公开(公告)号：US20150192508A1

公开(公告)日：2015-07-09

申请号：US14379676

申请日：2013-02-07

申请人： Pegasor Oy

发明人： Kauko Janka

IPC分类号： G01N15/06

CPC分类号： G01N15/06 ,  G01N15/0656 ,  G01N2015/0026 ,  H01T23/00

摘要： Apparatus (1) for generating acknowledged flow (Q), comprising a first passage (2) with ends (3,4) for acknowledged flow (Q) inlet and outlet, a discharge electrode (5) for generating airborne unipolar ions (8) positioned inside the first passage (2), a counter electrode (6) adapted to attract said airborne ions (8), thereby being adapted to cause a net flow (7) of airborne ions (8) and thereby generating an airflow (Q) in the direction of the net flow of airborne ions (8), sensing element (12, 13) , the output of which is a function of the concentration of the airborne electric charge (8, 11), means (17) for switching or modulating a parameter which affects the output of the sensing element (12,13) and means for determining the volumetric flow (Q) on the basis of the time response which switching or modulation creates to the sensing element (12,13) output. 11. Use of apparatus (1) as described in the previous claims for determining ultrafine particle concentration. Process for generating acknowledged flow.

摘要翻译： 用于产生确认流（Q）的装置（1），包括用于确认流量（Q）入口和出口的具有端部（3,4）的第一通道（2），用于产生空气传播单极离子（8）的放电电极（5） 位于所述第一通道（2）的内部，适于吸引所述空气传播离子（8）的对电极（6），从而适于引起空气传播离子（8）的净流（7），从而产生空气流（Q） 在空气传播离子（8）的净流动方向上，其输出是机载电荷（8,11）的浓度的函数的感测元件（12,13），用于切换或 调制影响感测元件（12,13）的输出的参数和用于基于切换或调制对感测元件（12,13）输出产生的时间响应来确定体积流量（Q）的装置。 11.如前述权利要求中所述的装置（1）的用途，用于确定超细颗粒浓度。 生成确认流程的过程。