METHOD AND SYSTEM FOR GAS DETECTION
    1.
    发明申请
    METHOD AND SYSTEM FOR GAS DETECTION 有权
    用于气体检测的方法和系统

    公开(公告)号:US20140350870A1

    公开(公告)日:2014-11-27

    申请号:US14362945

    申请日:2012-12-05

    申请人: GasSecure AS

    发明人: Håkon Sagberg

    IPC分类号: G01N21/35 G01N33/00 G01N21/59

    摘要: A gas sensor is used for determining a concentration of a predetermined gas in a measurement volume. The gas sensor comprises a light source and a detector arranged to receive light that has passed through the measurement volume. During a first measurement period, the detector is used to make a first measurement of an amount of light received in at least one wavelength band which is absorbed by the gas. The first measurement is compared to a predetermined threshold value. If the threshold is crossed, during a second measurement period the detector is used to make a second measurement of an amount of light received in at least one wavelength band which is absorbed by the gas. The concentration of said gas in said measurement volume is calculated using the first and/or second measurement.

    摘要翻译: 气体传感器用于确定测量体积中预定气体的浓度。 气体传感器包括光源和布置成接收已经通过测量体积的光的检测器。 在第一测量周期期间,检测器用于对由气体吸收的至少一个波长带中接收的光量进行第一次测量。 将第一测量与预定阈值进行比较。 如果超过阈值,则在第二测量周期期间,检测器用于对由气体吸收的至少一个波长带中接收的光量进行第二次测量。 使用第一和/或第二测量来计算所述测量体积中的所述气体的浓度。

    Water detection and 3-phase fraction measurement systems
    2.
    发明授权
    Water detection and 3-phase fraction measurement systems 有权
    水检测和三相分数测量系统

    公开(公告)号:US08039793B2

    公开(公告)日:2011-10-18

    申请号:US12947586

    申请日:2010-11-16

    IPC分类号: G01V5/08

    摘要: Methods and apparatus enable monitoring a hydrocarbon well for water within a flow stream of the well. A water detector includes a light source for emitting into a flow stream infrared light that includes a water absorbent wavelength band. A detector detects attenuation of the water absorbent wavelength band upon the infrared radiation passing through at least a portion of the flow stream. The water detector outputs a presence of water and/or a phase fraction or quantification of water as determined based on the attenuation. Detecting attenuation of a substantially transmissive wavelength band with respect to water simultaneously with detection of the attenuation of the water absorbent wavelength band can enable correction for non-wavelength dependent attenuation.

    摘要翻译: 方法和设备能够监测井的流体流内的烃井。 水检测器包括用于发射到包括吸水波长带的流动红外光的光源。 当红外辐射通过流动流的至少一部分时,检测器检测吸水波长带的衰减。 水检测器输出基于衰减确定的水的存在和/或相分数或水的定量。 检测相对于水的基本上透射的波长带的衰减同时检测吸水波长带的衰减可以使得能够进行非波长相关衰减的校正。

    APPARATUS AND METHOD FOR NON-INVASIVE MEASUREMENT OF A SUBSTANCE WITHIN A BODY
    3.
    发明申请
    APPARATUS AND METHOD FOR NON-INVASIVE MEASUREMENT OF A SUBSTANCE WITHIN A BODY 有权
    用于非身体测量身体物质的装置和方法

    公开(公告)号:US20110098542A1

    公开(公告)日:2011-04-28

    申请号:US12607903

    申请日:2009-10-28

    申请人: Yonatan Gerlitz

    发明人: Yonatan Gerlitz

    IPC分类号: A61B5/1455 A61B5/01

    摘要: A method and apparatus for the noninvasive detection of a concentration of a substance in a body, such as glucose in the human bloodstream is disclosed. The apparatus measures substance concentration by detecting radiation in the far infrared range emitted by the body using an infrared detected in combination with a set of adequate filters. In order to achieve the accuracy required, the radiation values detected by the detector are corrected for the emissions of the system components. The temperature of each system component including the detector temperature and an ambient temperate is determined using temperature sensors attached to the various system components. These temperatures are correlated with a set of predetermined calibration parameters to correct the detector readings.

    摘要翻译: 公开了用于人体血液中诸如葡萄糖之类的物质浓度无创检测的方法和装置。 该装置通过使用结合一组足够的过滤器检测的红外线检测身体发射的远红外范围内的辐射来测量物质浓度。 为了达到所需的准确度,由检测器检测到的辐射值被校正用于系统部件的发射。 包括检测器温度和环境温度的每个系统部件的温度使用连接到各种系统部件的温度传感器来确定。 这些温度与一组预定的校准参数相关,以校正检测器读数。

    Spectroscopic sensor for measuring sheet properties
    4.
    发明授权
    Spectroscopic sensor for measuring sheet properties 有权
    用于测量片材性能的光谱传感器

    公开(公告)号:US07382456B2

    公开(公告)日:2008-06-03

    申请号:US11636810

    申请日:2006-12-11

    IPC分类号: G01J3/51 G01B11/06

    摘要: A spectroscopic sensor for measuring flat sheet product is disclosed. The disclosed sensor uses a combination of spectrometers and single-channel detectors and filters together with a broadband source of illumination to optimally measure multiple properties of a flat sheet product. A spectrometer is used to measure over a spectral range where an easily configurable set of wavelength channels is needed and where the signal-to-noise ratios and spectral resolutions of the channels are consistent with the spectral range and number of pixels of the spectrometer; while one or more single channel detector and filter combinations are used to measure, with high signal-to-noise ratio, at specific wavelengths within or outside the spectral range of the spectrometer(s). Therefore, the single channel detectors can be used to complement the information provided by a spectrometer or to extend the working range of a spectrometer by providing single wavelength measurements anywhere in the visible, near-IR or mid-IR spectral regions.

    摘要翻译: 公开了一种用于测量平板产品的光谱传感器。 所公开的传感器使用光谱仪和单通道检测器和滤波器的组合以及宽带光源来最佳地测量平板产品的多个性质。 光谱仪用于在光谱范围内测量,其中需要容易配置的一组波长信道,并且其中信道的信噪比和光谱分辨率与光谱仪的光谱范围和像素数量一致; 而一个或多个单通道检测器和滤波器组合用于以高的信噪比来测量在光谱仪的光谱范围内或外的特定波长。 因此,可以使用单通道检测器来补充光谱仪提供的信息,或通过在可见光,近红外或中红外光谱区域中的任何地方提供单个波长测量来扩展光谱仪的工作范围。

    Method and apparatus for detecting the type of anesthetic gas

    公开(公告)号:US20060278829A1

    公开(公告)日:2006-12-14

    申请号:US11323703

    申请日:2005-12-30

    IPC分类号: G01J5/02

    摘要: Disclosed is a method and apparatus for detecting the type of anesthetic gas. The method comprises the steps of: generating a light with a plurality of wavelengths, the light being able to be separated to a plurality of light beams whose central frequencies correspond to the plurality of wavelengths; passing said light through a gas chamber, wherein, the gas chamber being filled with said anesthetic gas, said anesthetic gas having absorption characteristic with respect to said plurality of light beams; detecting the light intensity of the attenuated light beams transmitted from the gas chamber respectively, to obtain the relative absorption characteristic of said attenuated light beams, which attenuated light beams having been absorbed by said anesthetic gas; and determining the type of said anesthetic gas based on the relative absorption characteristic between said attenuated light beams.

    Non-dispersive infrared sensor
    6.
    发明授权

    公开(公告)号:US11913879B2

    公开(公告)日:2024-02-27

    申请号:US17749982

    申请日:2022-05-20

    发明人: Desheng Wang

    摘要: Disclosed is a sensor and method for detecting one or more gasses in a sample. The sensor includes two sample tube sections, which allow for a larger sample, and correspondingly, more accurate measurement. Having two sample tube sections increases the total length of the sample path. However, placing the sample tube sections in parallel allows for the performance of the sensor to be enhanced, but the footprint of the sensor to remain unchanged. Light pipe material may be used to transport the light between sample tube sections. Further, light pipe material may be used to move the IR lamp away from the first filter tube section, reducing problems in the thermopile by dissipating heat from the IR lamp away from the sample tube section.

    Gas detector for atmospheric species detection
    9.
    发明授权
    Gas detector for atmospheric species detection 有权
    用于大气物种检测的气体探测器

    公开(公告)号:US08599381B2

    公开(公告)日:2013-12-03

    申请号:US13226809

    申请日:2011-09-07

    IPC分类号: G01N21/00 G01N21/39

    摘要: A gas detector includes a receiver configured to receive light from a light source through gas, the light source having a bandwidth on the order of an absorption linewidth of the gas, the receiver including at least a first etalon having a transmission bandwidth on the order of the absorption linewidth of the gas, the transmission bandwidth of the first etalon being substantially smaller than the bandwidth of the light source. The gas detector further includes a first detector for detecting light transmitted through the first etalon, a second detector for detecting light reflected from the first etalon, and a processor that determines the quantity of gas based on the detected transmitted and reflected light. The gas detector can further include a second etalon with a transmission bandwidth approximately equal and adjacent to the transmission bandwidth of the first etalon. Alternatively, the gas detector can include a beam separator that separates the light from the light source into a first beam and a second beam, with a small deflection angle between the first beam and the second beam, thereby modifying the effective thickness of a single optical element for each beam and forming the first and second etalon in the optical element.

    摘要翻译: 气体检测器包括:接收器,被配置为通过气体接收来自光源的光,所述光源具有大约为气体吸收线宽度的带宽,所述接收器至少包括第一标准具,传输带宽为 气体的吸收线宽度,第一标准具的传输带宽显着小于光源的带宽。 气体检测器还包括用于检测通过第一标准具传输的光的第一检测器,用于检测从第一标准具反射的光的第二检测器,以及基于检测到的透射和反射光来确定气体量的处理器。 气体检测器还可以包括第二标准具,其传输带宽近似相等并且与第一标准具的传输带宽相邻。 或者,气体检测器可以包括光束分离器,其将来自光源的光分离成第一光束和第二光束,第一光束和第二光束之间具有小的偏转角,由此修改单个光学器件的有效厚度 元件,并在光学元件中形成第一和第二标准具。

    Device and Method for Determining the Composition of a Mixture of Fluids
    10.
    发明申请
    Device and Method for Determining the Composition of a Mixture of Fluids 有权
    用于确定流体混合物的组成的装置和方法

    公开(公告)号:US20120112072A1

    公开(公告)日:2012-05-10

    申请号:US13322439

    申请日:2010-06-04

    IPC分类号: G01J5/02

    摘要: A device for determining the composition of a mixture of fluids by spectral absorption, comprises: a radiation source; a detector for detecting radiation that has been attenuated by the mixture; and a device for separating the radiation into a wavelength band corresponding to an absorption band of one of the fluids, a wavelength band corresponding to an absorption band of another of the fluids, and at least one reference wavelength band substantially adjacent to each of the absorption bands, and especially adjacent to each side of the absorption band or group of absorption bands. The device may be used to determine the composition of mixtures of oil, water and gaseous hydrocarbons in oil wells where there is a very large degree of time varying scattering e.g. Rayleigh and Mie scattering due to turbulence.

    摘要翻译: 用于通过光谱吸收确定流体混合物的组成的装置包括:辐射源; 用于检测由所述混合物衰减的辐射的检测器; 以及用于将辐射分离成对应于一种流体的吸收带的波长带的装置,与另一种流体的吸收带相对应的波长带,以及基本上与每种吸收相邻的基准波长带 带,特别是与吸收带或吸收带组的每一侧相邻。 该装置可用于确定油井中油,水和气态烃的混合物的组成,其中存在非常大程度的时变散射,例如, 瑞利和米ie因湍流散射。