公开(公告)号：EP2930550B1

公开(公告)日：2018-08-08

申请号：EP15162352.7

申请日：2015-04-02

Applicant: Rosemount Aerospace Inc.

Inventor： Ray, Mark ,  Anderson, Kaare Josef

IPC: G02B27/00 ,  G01J1/04 ,  B64D15/20 ,  G01N21/88 ,  G01N21/958 ,  G01N21/15 ,  G01N21/21 ,  G01N21/94 ,  G01J4/00

CPC classification number: B64D15/20 ,  G01N21/15 ,  G01N21/21 ,  G01N21/94 ,  G01N21/958 ,  G01N2021/157 ,  G01N2021/8848 ,  G01N2021/945 ,  G02B27/0006

Abstract: A system for detecting contamination of a window 18 of an optical system includes a polarizing beamsplitter 14, a quarter waveplate 16, a photodetector 12, and a processor 24. The polarizing beamsplitter is configured to receive a laser beam having a first polarization and reflect the laser beam having the first polarization to the window. The photodetector is configured to sense a magnitude of reflections of the laser beam from the window having a second polarization, wherein the polarizing beamsplitter passes the reflections of the laser beam from the window having the second polarization to the photodetector. The processor is configured to determine a contamination level of the window based upon the magnitude of the reflections of the laser beam from the window.

公开(公告)号：EP2816373B1

公开(公告)日：2016-08-24

申请号：EP14173153.9

申请日：2014-06-19

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： Ray, Mark ,  Anderson, Kaare Josef ,  Miller, Mark Sherwood

IPC: G01S17/95 ,  G01S7/48

CPC classification number: G01S17/95 ,  G01S7/4802 ,  Y02A90/19

Abstract: A method of optically detecting the presence of a bimodal droplet size distribution in the atmosphere. The method comprising monitoring statistical fluctuations in a backscattered signal received from a series of pulsed laser light beams directed into a cloud and analyzing the statistics of the fluctuations of the backscattered signals to identify the presence of larger diameter droplets.

公开(公告)号：EP2846148A1

公开(公告)日：2015-03-11

申请号：EP14181758.5

申请日：2014-08-21

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： Ray, Mark ,  Anderson, Kaare Josef

IPC: G01N21/21 ,  B64D15/20 ,  G01N21/53 ,  G01S17/95 ,  G01S7/499 ,  G01N21/47 ,  G01N21/17

CPC classification number: G01N21/53 ,  B64D47/00 ,  G01N21/21 ,  G01N21/538 ,  G01N2021/1793 ,  G01N2021/216 ,  G01N2021/4709 ,  G01N2201/0214 ,  G01S7/499 ,  G01S17/95 ,  Y02A90/19

Abstract: A method of optically determining the presence of volcanic ash within a cloud comprises emitting a circularly polarized illuminating beam within a cloud (102) and analyzing backscatter light to identify the presence of volcanic ash within the cloud (104). The method may further include determining the degree to which the cloud has altered the polarization state of the emitted beam. The index of refraction of the backscatter light and the opacity of the backscatter light may also be analyzed.

Abstract translation: 光学确定性采矿的方法，火山灰的云内的存在的步骤包括发射云（102）和分析反向散射的光中的圆偏振的照明光束来识别云（104）内的火山灰的存在。 该方法可包括确定性此外采矿到的云具有改变发射的光束的偏振状态的程度。 后向散射的光的折射和后向散射光的不透明度的索引可以因此被分析。

公开(公告)号：EP2816373A2

公开(公告)日：2014-12-24

申请号：EP14173153.9

申请日：2014-06-19

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： Ray, Mark ,  Anderson, Kaare Josef ,  Miller, Mark Sherwood

IPC: G01S17/95 ,  G01S7/48

CPC classification number: G01S17/95 ,  G01S7/4802 ,  Y02A90/19

Abstract: A method of optically detecting the presence of a bimodal droplet size distribution in the atmosphere. The method comprising monitoring statistical fluctuations in a backscattered signal received from a series of pulsed laser light beams directed into a cloud and analyzing the statistics of the fluctuations of the backscattered signals to identify the presence of larger diameter droplets.

公开(公告)号：EP2930550A1

公开(公告)日：2015-10-14

申请号：EP15162352.7

申请日：2015-04-02

Applicant: Rosemount Aerospace Inc.

Inventor： Ray, Mark ,  Anderson, Kaare Josef

IPC: G02B27/00 ,  G01J1/04 ,  B64D15/20 ,  G01N21/88 ,  G01N21/958 ,  G01N21/94 ,  G01J4/00

CPC classification number: B64D15/20 ,  G01N21/15 ,  G01N21/21 ,  G01N21/94 ,  G01N21/958 ,  G01N2021/157 ,  G01N2021/8848 ,  G01N2021/945 ,  G02B27/0006

Abstract: A system for detecting contamination of a window 18 of an optical system includes a polarizing beamsplitter 14, a quarter waveplate 16, a photodetector 12, and a processor 24. The polarizing beamsplitter is configured to receive a laser beam having a first polarization and reflect the laser beam having the first polarization to the window. The photodetector is configured to sense a magnitude of reflections of the laser beam from the window having a second polarization, wherein the polarizing beamsplitter passes the reflections of the laser beam from the window having the second polarization to the photodetector. The processor is configured to determine a contamination level of the window based upon the magnitude of the reflections of the laser beam from the window.

Abstract translation: 用于检测光学系统的窗口18的污染的系统包括偏振分束器14，四分之一波片16，光电检测器12和处理器24.偏振分束器被配置为接收具有第一极化的激光束并且反射 激光束具有第一极化到窗口。 光电检测器被配置为感测来自具有第二偏振的窗口的激光束的反射的大小，其中偏振分束器将激光束从具有第二偏振的窗口的反射通过到光电检测器。 处理器被配置为基于来自窗口的激光束的反射的大小来确定窗口的污染水平。

公开(公告)号：EP2816373A3

公开(公告)日：2015-02-11

申请号：EP14173153.9

申请日：2014-06-19

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： Ray, Mark ,  Anderson, Kaare Josef ,  Miller, Mark Sherwood

IPC: G01S17/95 ,  G01S7/48

CPC classification number: G01S17/95 ,  G01S7/4802 ,  Y02A90/19

Abstract: A method of optically detecting the presence of a bimodal droplet size distribution in the atmosphere. The method comprising monitoring statistical fluctuations in a backscattered signal received from a series of pulsed laser light beams directed into a cloud and analyzing the statistics of the fluctuations of the backscattered signals to identify the presence of larger diameter droplets.

Abstract translation: 一种在大气中光学检测双峰液滴尺寸分布的存在的方法。 该方法包括监视从指向云中的一系列脉冲激光束接收的反向散射信号中的统计波动，并分析反向散射信号的波动的统计信息以识别更大直径的液滴的存在。