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    Systems and methods for determining a survey area for gas leak detection
    51.
    发明授权
    Systems and methods for determining a survey area for gas leak detection 有权

    公开(公告)号：US10330555B1

    公开(公告)日：2019-06-25

    申请号：US15137550

    申请日：2016-04-25

    Applicant: Picarro Inc.

    Inventor： Sze M. Tan ,  Chris W. Rella

    IPC: G01M3/04 ,  G01M3/00 ,  G01M3/16 ,  F02M65/00

    Abstract: In some embodiments, at least one processor is employed to determine a boundary of a survey area. Data representative of the locations of measurement points adjacent to or outside of the survey area is received, as well as data representative of wind direction at the measurement points. The boundary of the survey area is determined according to the data representative of wind direction and a maximum detection distance value representative of an estimated maximum distance from a potential gas leak source at which a gas leak from the potential source can be detected. The boundary is determined such that if the potential gas leak source is located in the survey area and has a rate of leakage meeting a minimum leak rate condition, then an estimated probability of detection of the gas leak at one or more of the measurement points satisfies a probability condition.

    Methods for gas leak detection and localization in populated areas using horizontal analysis
    59.
    发明授权
    Methods for gas leak detection and localization in populated areas using horizontal analysis 有权
    采用横向分析方法对人口稠密地区进行气体泄漏检测和定位

    公开(公告)号：US09482591B2

    公开(公告)日：2016-11-01

    申请号：US13656080

    申请日：2012-10-19

    Applicant: Picarro, Inc.

    Inventor： Chris W. Rella ,  Eric R. Crosson ,  Michael Woelk ,  Sze Meng Tan

    IPC: G06F15/00 ,  G01M3/20 ,  G01N33/00 ,  G01N21/3504

    CPC classification number: G01M3/20 ,  G01N21/3504 ,  G01N33/0004 ,  G01N2201/025

    Abstract: Improved gas leak detection from moving platforms is provided. Automatic horizontal spatial scale analysis can be performed in order to distinguish a leak from background levels of the measured gas. Source identification can be provided by using isotopic ratios and/or chemical tracers to distinguish gas leaks from other sources of the measured gas. Multi-point measurements combined with spatial analysis of the multi-point measurement results can provide leak source distance estimates. These methods can be practiced individually or in any combination.

    Abstract translation: 提供了从移动平台改进的气体泄漏检测。 可以进行自动水平空间尺度分析，以区分泄漏与被测气体的背景水平。 可以通过使用同位素比率和/或化学示踪剂来提供源识别，以区分气体泄漏与测量气体的其他来源。 多点测量结合多点测量结果的空间分析可以提供泄漏源距离估计。 这些方法可以单独或以任何组合实施。

    Gas analysis system providing simultaneous analysis and multi-point sample acquisition
    60.
    发明授权
    Gas analysis system providing simultaneous analysis and multi-point sample acquisition 有权
    气体分析系统提供同步分析和多点采样

    公开(公告)号：US09274031B1

    公开(公告)日：2016-03-01

    申请号：US13866637

    申请日：2013-04-19

    Applicant: Picarro, Inc.

    Inventor： Chris W. Rella

    IPC: G01N1/22 ,  G01N1/26

    CPC classification number: G01N1/26 ,  G01N33/0022

    Abstract: A gas handling system capable of simultaneous sample analysis and multi-point sample acquisition is provided. An exemplary system has N gas inlets and N+1 sample storage loops (having a high aspect ratio), where N≧2. The high aspect ratio of the sample storage loop prevents significant sample diffusion along the length of the loop. Therefore each loop preserves a time axis for its contents. The sample loops can be disposed to simultaneously admit samples from different points in space. A gas switching manifold can be employed to connect the sample storage loops sequentially and one at a time to the gas analysis instrument for analysis. A common time axis for all samples can be reconstructed from the switching and flow conditions. Thus a simultaneous multi-point measurement using a single analysis instrument is provided.

    Abstract translation: 提供了能够同时进行样品分析和多点样品采集的气体处理系统。 示例性系统具有N个气体入口和N + 1个样品存储回路（具有高纵横比），其中N≥2。 样品储存环路的高纵横比阻止了沿着环路长度的显着样品扩散。 因此，每个循环保留其内容的时间轴。 样品环可以被设置成同时允许来自空间中的不同点的样品。 可以采用气体开关歧管来连续地将样品储存环路连续地连接到气体分析仪器用于分析。 可以从切换和流量条件重建所有采样的公共时间轴。 因此，提供了使用单个分析仪器的同时多点测量。

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