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    • 13. 发明公开
    • Remote sensing system
    • Fernfühleinrichtung。
    • EP0324583A2
    • 1989-07-19
    • EP89300188.3
    • 1989-01-10
    • WORLD GEOSCIENCE CORPORATION LIMITED
    • Grant, Andrew IanStevens, David GrahamMacpherson, Martyn Taylor
    • G01N21/64G01J3/443G01V9/00
    • G01J3/44G01J3/2803G01J2003/066G01N21/64G01N2201/0214
    • Apparatus for detecting an anomaly, (e.g the presence of a hydrocarbon seep) at or near a water or land surface comprises means for generating a beam, preferably a pulsed beam, of primary light radiation, preferably ultra-violet light, and directing the beam towards the surface. The beam is sufficiently intense and of such a spectral composition that the beam causes the anomaly, if present, to emit secondary light radiation. The apparatus also comprises means for collecting the secondary light radiation, or means for collecting solar induced secondary light radiation, spectral analysis means for analysing the spectrum of the secondary radiation, and a high resolution, multi-element digitising detector for recovering the analysed secondary radiation. The detector has a plurality of detection channels positioned across the spectrum of the basckscattered primary radiation and emitted secondary radiation, the channels being software configurable and under the control of a digitally addressable computer-operated controller. The concentration of used channels across the plurality of channels is adjustable and increasable in the regions of the spectrum of greatest interest and decreasable in the regions of least interest.
    • 用于检测水或陆面表面或附近的异常(例如,碳氢化合物渗漏的存在)的装置包括用于产生主要光辐射(优选紫外光)的束(优选脉冲光束)的装置,以及引导光束 朝向表面。 光束是足够强烈的,并且具有这样的光谱组成,即光束导致异常(如果存在)发射次级光辐射。 该装置还包括用于收集二次光辐射的装置或用于收集太阳能诱发的次级光辐射的装置,用于分析次级辐射的光谱的光谱分析装置和用于恢复分析的二次辐射的高分辨率多元数字化检测器 。 检测器具有多个检测通道,该通道位于基底分散的初级辐射和发射的次级辐射的频谱上,该通道是软件可配置的并且在数字可寻址的计算机操作的控制器的控制下。 跨越多个通道的所使用的通道的集中在最感兴趣的范围的区域中是可调节的并且可以在最不感兴趣的区域中减小。
    • 19. 发明申请
    • METHOD FOR MONITORING FUGITIVE GAS EMISSIONS FROM THE SOIL, VIA VERTICAL CONCENTRATION MEASUREMENTS
    • 通过垂直浓度测量监测来自土壤的排放气体排放的方法
    • US20130208262A1
    • 2013-08-15
    • US13823296
    • 2011-10-04
    • Paolo Andreussi
    • Paolo Andreussi
    • G01N21/31
    • G01N21/3103G01M3/38G01N21/3504G01N2021/1795G01N2021/399G01N2201/0214
    • Method for the quantification of the fugitive gas flow from a dispersed source (A) by monitoring with a remote detection optical instrument mounted on an aircraft (UAV) which moves at a determined height along a plane (5) perpendicular to the direction of the wind field (u), such wind field being known through suitable positioning of meteorological stations within and in areas neighbouring the site to be monitored according to known techniques and use of commercially available diagnostic meteorological models. By this instrument discrete vertical measurements are carried out of the fugitive gas concentration averaged over said height along the whole width (W) of the plane (S) to yield corresponding mean vertical concentration values and, according to mean wind speed values detected at said discrete vertical measurements, a value of the fugitive gas flow (Q) is obtained by integrating the product of the mean vertical concentration values and of the corresponding mean wind speed values with respect to the surface of the sampling plane (5). The obtained value of the fugitive gas flow (Q) is corrected by a corrective factor (a) obtainable by comparing concentration values obtained by direct measurements and values calculated by dispersion models.
    • 通过用安装在飞行器(UAV)上的远程检测光学仪器进行监测来量化来自分散源(A)的短暂气体流的方法,其以垂直于风向的平面(5)在确定的高度移动 场(u),通过根据已知技术和商业上可用的诊断气象模型的使用,通过适当地定位要监测的站点内和附近的区域中的气象站,已知这种风场。 通过该仪器,沿着平面(S)的整个宽度(W)在所述高度上平均的逸散气体浓度进行离散垂直测量,以产生相应的平均垂直浓度值,并且根据在所述离散值处检测到的平均风速值 通过将平均垂直浓度值和对应的平均风速值的乘积相对于采样平面(5)的表面积分,获得短暂的气体流量(Q)的值。 通过比较通过直接测量获得的浓度值和通过色散模型计算的值可获得的校正因子(a)来校正所获得的缓释气体流量(Q)值。