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    METHOD AND ARRANGEMENT FOR DETERMINING SAMPLE FLOW VOLUME
    1.
    发明申请
    METHOD AND ARRANGEMENT FOR DETERMINING SAMPLE FLOW VOLUME 有权
    用于确定样品流量的方法和布置

    公开(公告)号：US20110067480A1

    公开(公告)日：2011-03-24

    申请号：US12858857

    申请日：2010-08-18

    申请人： Mika HIETALA

    发明人： Mika HIETALA

    IPC分类号： G01N33/497

    CPC分类号： A61B5/087 ,  A61B5/083 ,  G01F22/02 ,  G01N33/497

    摘要： A method for determining a sample flow volume is disclosed herein. The method includes withdrawing the sample flow at a first and second flow rate from a gas flow, measuring a concentration of at least one gas component and measuring at least one of an airway pressure and flow. The method also includes generating first measurement results based on the concentration, generating second measurement results based on the at least one of the airway pressure and flow and setting a suitable point of comparison. The method further includes determining a first and second time delay between the point of comparison of the first and second measurement results of the first and second flow rate, providing information about the first and second sample flow rate and determining the sample volume based on differences between the first and second time delay. A corresponding arrangement is also provided.

    摘要翻译： 本文公开了一种用于确定样品流量的方法。 该方法包括从气流以第一和第二流速抽出样品流，测量至少一种气体组分的浓度并测量气道压力和流量中的至少一种。 该方法还包括基于浓度产生第一测量结果，基于气道压力和流量中的至少一个产生第二测量结果并设置合适的比较点。 该方法还包括确定第一和第二流量的第一和第二测量结果的比较点之间的第一和第二时间延迟，提供关于第一和第二样本流量的信息，并且基于第一和第二流量之间的差异来确定样本体积 第一次和第二次延迟。 还提供了相应的布置。

    Method and apparatus for eliminating and compensating thermal transients in gas analyzer
    2.
    发明申请
    Method and apparatus for eliminating and compensating thermal transients in gas analyzer 有权
    消除和补偿气体分析仪热瞬变的方法和装置

    公开(公告)号：US20050268690A1

    公开(公告)日：2005-12-08

    申请号：US10863810

    申请日：2004-06-08

    申请人： Kurt Weckstrom ,  Heikki Haveri ,  Mika Hietala

    发明人： Kurt Weckstrom ,  Heikki Haveri ,  Mika Hietala

    IPC分类号： G01N21/27 ,  G01N21/35 ,  G01N21/61 ,  G01N7/00

    CPC分类号： G01N21/3504 ,  G01N21/274 ,  G01N21/61 ,  G01N2201/023 ,  G01N2201/1211 ,  G01N2201/12792

    摘要： The invention concerns a gas analyzer comprising: a measuring volume (2), a radiation source (1) for providing a beam to pass said measuring volume; a heat sink (16) for said radiation source; at least one thermal detector (3) having a hot junction within a support structure and receiving the radiation and a cold junction for reference within the same support structure and protected from said radiation; at least one optical bandpass filter (9) between said hot junction and said radiation source; and a thermal mass (11), which is formed of a material having high thermal conductance. The thermal mass has a cavity with a bottom step (34) and a rim (32), and a first length therebetween. The support structure has a frontal edge (35) and a base plate lip (33), and a second length therebetween. There is a radial gap between the thermal mass and the support structure. Press means urge said support structure in the cavity, whereupon a more efficient thermal contact is either between said frontal edge and said bottom step, or between said base plate lip and said rim. A first thermal barrier (17) is between the heat sink and the thermal mass, and a second thermal barrier (22) surrounds the thermal mass. A shield (19) formed of a material having high thermal conductance covers said second thermal barrier and is in thermal contact with said heat sink.

    摘要翻译： 本发明涉及一种气体分析仪，包括：测量体积（2），用于提供光束以通过所述测量体积的辐射源（1） 用于所述辐射源的散热器（16）; 至少一个热探测器（3），其在支撑结构内具有热接合部，并且在相同的支撑结构内接受辐射和冷接点供参考，并保护免受所述辐射; 在所述热接头和所述辐射源之间的至少一个光学带通滤波器（9）; 以及由具有高导热性的材料形成的热质（11）。 热质量具有具有底部台阶（34）和边缘（32）的空腔，并且其间具有第一长度。 支撑结构具有前边缘（35）和基板唇缘（33），并且其间具有第二长度。 在热质和支撑结构之间存在径向间隙。 压制装置促使空腔中的所述支撑结构，由此在所述正面边缘和所述底部台阶之间或所述基板唇缘和所述边缘之间更有效的热接触。 第一热障（17）在散热器和热质量之间，第二热障（22）围绕热质量。 由具有高导热性的材料形成的屏蔽（19）覆盖所述第二热障，并与所述散热器热接触。

    Method and apparatus for eliminating and compensating thermal transients in gas analyzer
    4.
    发明授权
    Method and apparatus for eliminating and compensating thermal transients in gas analyzer 有权
    消除和补偿气体分析仪热瞬变的方法和装置

    公开(公告)号：US07069768B2

    公开(公告)日：2006-07-04

    申请号：US10863810

    申请日：2004-06-08

    申请人： Kurt Weckström ,  Heikki Haveri ,  Mika Hietala

    发明人： Kurt Weckström ,  Heikki Haveri ,  Mika Hietala

    IPC分类号： G01N25/00

    CPC分类号： G01N21/3504 ,  G01N21/274 ,  G01N21/61 ,  G01N2201/023 ,  G01N2201/1211 ,  G01N2201/12792

    摘要： The invention concerns a gas analyzer comprising: a measuring volume (2), a radiation source (1) for providing a beam to pass said measuring volume; a heat sink (16) for said radiation source; at least one thermal detector (3) having a hot junction within a support structure and receiving the radiation and a cold junction for reference within the same support structure and protected from said radiation; at least one optical bandpass filter (9) between said hot junction and said radiation source; and a thermal mass (11), which is formed of a material having high thermal conductance. The thermal mass has a cavity with a bottom step (34) and a rim (32), and a first length therebetween. The support structure has a frontal edge (35) and a base plate lip (33), and a second length therebetween. There is a radial gap between the thermal mass and the support structure. Press means urge said support structure in the cavity, whereupon a more efficient thermal contact is either between said frontal edge and said bottom step, or between said base plate lip and said rim. A first thermal barrier (17) is between the heat sink and the thermal mass, and a second thermal barrier (22) surrounds the thermal mass. A shield (19) formed of a material having high thermal conductance covers said second thermal barrier and is in thermal contact with said heat sink.

    摘要翻译： 本发明涉及一种气体分析仪，包括：测量体积（2），用于提供光束以通过所述测量体积的辐射源（1） 用于所述辐射源的散热器（16）; 至少一个热探测器（3），其在支撑结构内具有热接合部，并且在相同的支撑结构内接受辐射和冷接点供参考，并保护免受所述辐射; 在所述热接头和所述辐射源之间的至少一个光学带通滤波器（9）; 以及由具有高导热性的材料形成的热质（11）。 热质量具有具有底部台阶（34）和边缘（32）的空腔，并且其间具有第一长度。 支撑结构具有前边缘（35）和基板唇缘（33），并且其间具有第二长度。 在热质和支撑结构之间存在径向间隙。 压制装置促使空腔中的所述支撑结构，由此在所述正面边缘和所述底部台阶之间或所述基板唇缘和所述边缘之间更有效的热接触。 第一热障（17）在散热器和热质量之间，第二热障（22）围绕热质量。 由具有高导热性的材料形成的屏蔽（19）覆盖所述第二热障，并与所述散热器热接触。

    Method and arrangement for determining sample flow volume
    5.
    发明授权
    Method and arrangement for determining sample flow volume 有权
    用于确定样品流量的方法和装置

    公开(公告)号：US08333111B2

    公开(公告)日：2012-12-18

    申请号：US12858857

    申请日：2010-08-18

    申请人： Mika Hietala

    发明人： Mika Hietala

    IPC分类号： G01F17/00 ,  G01N33/497 ,  A61B5/08

    CPC分类号： A61B5/087 ,  A61B5/083 ,  G01F22/02 ,  G01N33/497

    摘要： A method for determining a sample flow volume is disclosed herein. The method includes withdrawing the sample flow at a first and second flow rate from a gas flow, measuring a concentration of at least one gas component and measuring at least one of an airway pressure and flow. The method also includes generating first measurement results based on the concentration, generating second measurement results based on the at least one of the airway pressure and flow and setting a suitable point of comparison. The method further includes determining a first and second time delay between the point of comparison of the first and second measurement results of the first and second flow rate, providing information about the first and second sample flow rate and determining the sample volume based on differences between the first and second time delay. A corresponding arrangement is also provided.

    摘要翻译： 本文公开了一种用于确定样品流量的方法。 该方法包括从气流以第一和第二流速抽出样品流，测量至少一种气体组分的浓度并测量气道压力和流量中的至少一种。 该方法还包括基于浓度产生第一测量结果，基于气道压力和流量中的至少一个产生第二测量结果并设置合适的比较点。 该方法还包括确定第一和第二流量的第一和第二测量结果的比较点之间的第一和第二时间延迟，提供关于第一和第二样本流量的信息，并且基于第一和第二流量之间的差异来确定样本体积 第一次和第二次延迟。 还提供了相应的布置。

    Gas analyzer using thermal detectors
    6.
    发明授权
    Gas analyzer using thermal detectors 失效
    气体分析仪采用热探测器

    公开(公告)号：US06694800B2

    公开(公告)日：2004-02-24

    申请号：US10392660

    申请日：2003-03-20

    申请人： Kurt Weckstrom ,  Mika Hietala

    发明人： Kurt Weckstrom ,  Mika Hietala

    IPC分类号： G01N2500

    CPC分类号： G01N21/3504

    摘要： The invention relates to a gas analyzer comprising a measuring volume (6) for a sample gas mixture (G), a radiation source (1) for providing a beam (20) of electromagnetic radiation to pass said measuring volume, a heat sink (4) for said radiation source, at least one thermopile detector (9), at least one optical bandpass filter (10), electrical contact pins (12) for signal(s) in the housing of said detector, a thermal mass formed of a material having high thermal conductance. Said thermal mass has a cavity (21) and an outer surface (22), surrounding at least said detector housing in the cavity, being in contact with said detector housing, and extending towards the radiation source. There is a thermal barrier between the heat sink (4) and the thermal mass (8, 16). The gas analyzer further comprises electrical wires (15), which are composed of materials and having dimensions producing an overall thermal conductance substantially lower than that of said electrical contact pins. Said wires are connected with the electrical contact pins either directly or indirectly, and enclosed in the thermal mass together with said detector housing(s), and extend from the cavity through the thermal mass (8, 16) to the outside thereof.

    摘要翻译： 本发明涉及一种气体分析仪，其包括用于样品气体混合物（G）的测量体积（6），用于提供电磁辐射束（20）以通过所述测量体积的辐射源（1），散热器 ），至少一个热电堆检测器（9），至少一个光学带通滤波器（10），用于所述检测器的壳体中的信号的电接触销（12），由材料形成的热质量 具有高导热性。 所述热质量具有空腔（21）和外表面（22），至少包围所述腔中的检测器壳体，与所述检测器壳体接触并朝向辐射源延伸。 散热片（4）和热质（8,16）之间有一个隔热层。 气体分析器还包括电线（15），其由材料组成并且具有导致总体热传导率基本上低于所述电接触针脚的尺寸的尺寸。 所述电线直接或间接地与电接触销连接，并与所述检测器壳体一起封闭在热质体中，并且从空腔通过热质（8,16）延伸到其外部。