中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.02 seconds)

    A DUAL GAS SENSOR STRUCTURE AND MEASUREMENT METHOD
    1.
    发明公开
    A DUAL GAS SENSOR STRUCTURE AND MEASUREMENT METHOD 审中-公开
    芝加哥麻省理工学院GESSENSOREN UND MESSVERFAHREN

    公开(公告)号：EP3004868A4

    公开(公告)日：2017-01-25

    申请号：EP14805060

    申请日：2014-05-27

    Applicant: VAISALA OYJ

    Inventor： VIITANEN VELI-PEKKA ,  LEHMUS KAISA ,  LEPPÄNEN JUKKA

    IPC: G01N33/00 ,  G01N27/12 ,  G01N27/22

    CPC classification number: G01N33/0031 ,  G01N27/121 ,  G01N27/223 ,  G01N33/0024

    Abstract: The invention relates to a sensor structure and a method. The sensor structure includes a first sensor having a sensing element sensitive to humidity of the environment. In accordance with the invention the sensor structure also includes s second sensor having a sensing element sensitive to humidity, the second sensor comprising a catalytic permeable layer positioned on the second sensor such that it is between the sensing element of the second sensor and the environment.

    Abstract translation: 本发明涉及传感器结构和方法。 传感器结构包括具有对环境湿度敏感的感测元件的第一传感器。 根据本发明，传感器结构还包括具有对湿度敏感的感测元件的第二传感器，第二传感器包括位于第二传感器上的催化可渗透层，使得其位于第二传感器的感测元件和环境之间。

    METHOD AND SYSTEM FOR GAS CONCENTRATION MEASUREMENT OF GAS DISSOLVED IN LIQUIDS
    2.
    发明公开
    METHOD AND SYSTEM FOR GAS CONCENTRATION MEASUREMENT OF GAS DISSOLVED IN LIQUIDS 审中-公开
    VERFAHREN UND SYSTEM ZUR MESSUNG DER KONZENTRATIONEN VON INFLÜSSIGKEITENGELÖSTENGASEN

    公开(公告)号：EP3049806A4

    公开(公告)日：2017-06-07

    申请号：EP14849009

    申请日：2014-09-17

    Applicant: VAISALA OYJ

    Inventor： VIITANEN VELI-PEKKA

    IPC: G01N33/28 ,  G01J3/18 ,  G01J3/26 ,  G01J3/42 ,  G01J3/427 ,  G01N21/27 ,  G01N21/3504 ,  G01N21/3518

    CPC classification number: G01N21/255 ,  G01J3/26 ,  G01J3/42 ,  G01J3/427 ,  G01N21/274 ,  G01N21/31 ,  G01N21/3504 ,  G01N33/2841 ,  G01N2021/3536 ,  G01N2201/068 ,  G01N2201/12715

    Abstract: The present invention concerns a method and system for gas concentration measurement of gas or gas mixtures dissolved in liquids. A gas or gas mixture dissolved in a liquid sample is extracted from the liquid sample using an extraction system and conducted into a measurement chamber. Then a measurement signal is generated by means of a radiant source and the measurement signal is directed to a measurement object in a measurement chamber containing the gas or gas mixture to be measured. The measurement signal is filtered using at least two wavelengths, whereupon the filtering is preferably implemented by means of an electrically tunable, short-resonator Fabry-Perot interferometer. Then the filtered measurement signals are detected my means of a detector.

    Abstract translation: 本发明涉及用于测量溶解在液体中的气体或气体混合物的气体浓度的方法和系统。 使用提取系统从液体样品中提取溶解在液体样品中的气体或气体混合物并将其导入测量室。 然后通过辐射源产生测量信号，并将测量信号引导到包含待测量的气体或气体混合物的测量室中的测量对象。 测量信号使用至少两个波长进行滤波，其中滤波优选通过电可调谐的短谐振器法布里珀罗干涉仪来实现。 然后过滤的测量信号被检测到我的手段。

    4.
    发明专利
    未知

    公开(公告)号：FI20105916A0

    公开(公告)日：2010-08-31

    申请号：FI20105916

    申请日：2010-08-31

    Applicant: VAISALA OYJ

    Inventor： VIITANEN VELI-PEKKA ,  VIRTANEN SAMI

    Abstract: The invention relates to a NMR method for determining moisture content of a sample, in which method a sample is subjected to a magnetic DC-field, the sample under magnetic DC-field is subjected to a sequence of excitation pulses in RF-frequency with pulse interval for exciting hydrogen nuclei, and NMR signal of the excited hydrogen nuclei is measured. In accordance with the invention spin-lattice relaxation time is estimated for the sample, and pulse interval is adjusted longer than the estimated spin-lattice relaxation time.

    METHOD AND SYSTEM FOR EXTRACTING GAS OR GAS MIXTURES FROM A LIQUID FOR PERFORMING DISSOLVED GAS OR GAS MIXTURE ANALYSIS
    5.
    发明专利
    METHOD AND SYSTEM FOR EXTRACTING GAS OR GAS MIXTURES FROM A LIQUID FOR PERFORMING DISSOLVED GAS OR GAS MIXTURE ANALYSIS 未知

    公开(公告)号：CA2955112A1

    公开(公告)日：2016-02-25

    申请号：CA2955112

    申请日：2015-08-11

    Applicant: VAISALA OYJ

    Inventor： VIRTANEN SAMI ,  VIITANEN VELI-PEKKA

    IPC: G01N1/28 ,  B01D19/00 ,  G01N33/28

    Abstract: The present invention concerns asystem (1) for extracting gas or gas mixtures from a liquid for performing dissolved gas or gas mixture analysis, the system (1) comprising a container (2) for storing a liquid and/or a gas or gas mixture, a liquid pump (3) which is connected to the container (2), a means for feeding the system (1) with a liquid and emptying the system (1) of the liquid, a gas analyzer which is connected to the container (2), and a piping (14) which is connected to the container (2), and wherein the piping (14), the liquid pump (3) and the container (2) are configured to circulate the liquid. The invention also concerns a method for extracting gas or gas mixtures from a liquid for performing dissolved gas or gas mixture analysis.

    9.
    发明专利
    未知

    公开(公告)号：FI20105917A0

    公开(公告)日：2010-08-31

    申请号：FI20105917

    申请日：2010-08-31

    Applicant: VAISALA OYJ

    Inventor： VIRTANEN SAMI ,  VIITANEN VELI-PEKKA

    Abstract: A Nuclear Magnetic Resonance (NMR) apparatus and method for measuring the water content of samples has a device to produce a main magnetic field; a sample receiving space within a main magnetic field; a device to excite a measurable RF magnetization to a sample placed into the sample receiving space at an operating frequency defined by the main magnetic field; a device to measure the RF signal produced by the excited sample; and a device to determine the water content in the sample based on the RF signal. The sample receiving space is capable of accommodating a sample having a volume of at least 0.5 dm3, and the device to produce a main magnetic field has a resistive electromagnet which is adapted to produce a main magnetic field corresponding to an operating frequency of 400-2000 kHz.

    METHOD AND SYSTEM FOR EXTRACTING GAS OR GAS MIXTURES FROM A LIQUID FOR PERFORMING DISSOLVED GAS OR GAS MIXTURE ANALYSIS
    10.
    发明专利
    METHOD AND SYSTEM FOR EXTRACTING GAS OR GAS MIXTURES FROM A LIQUID FOR PERFORMING DISSOLVED GAS OR GAS MIXTURE ANALYSIS 未知

    公开(公告)号：CA2955112C

    公开(公告)日：2022-07-19

    申请号：CA2955112

    申请日：2015-08-11

    Applicant: VAISALA OYJ

    Inventor： VIRTANEN SAMI ,  VIITANEN VELI-PEKKA

    IPC: G01N1/28 ,  B01D19/00 ,  G01N33/28

    Abstract: The present invention concerns asystem (1) for extracting gas or gas mixtures from a liquid for performing dissolved gas or gas mixture analysis, the system (1) comprising a container (2) for storing a liquid and/or a gas or gas mixture, a liquid pump (3) which is connected to the container (2), a means for feeding the system (1) with a liquid and emptying the system (1) of the liquid, a gas analyzer which is connected to the container (2), and a piping (14) which is connected to the container (2), and wherein the piping (14), the liquid pump (3) and the container (2) are configured to circulate the liquid. The invention also concerns a method for extracting gas or gas mixtures from a liquid for performing dissolved gas or gas mixture analysis.

Patent Agency Ranking