公开(公告)号：JP2011027741A

公开(公告)日：2011-02-10

申请号：JP2010165900

申请日：2010-07-23

Applicant: Rosemount Aerospace Inc ,  ローズマウント・エアロスペース・インコーポレーテッドRosemount Aerospace Inc.

Inventor： RAY MARK D ,  NESNIDAL MICHAEL P

IPC: G01S17/95

CPC classification number: B64D15/20

Abstract: PROBLEM TO BE SOLVED: To provide a device where by detecting the presence of floating droplet and by measuring transverse scattering of the beam when laser beam penetrates clouds, information reflecting profile of the diameter of these droplets is provided. SOLUTION: An in-flight multiple field-of-view water droplet sensor includes an illumination portion and a detection portion. The illumination portion includes a first optical beam emitter configured to output a light beam. The detection portion includes a kaleidoscope configured to channel a first portion of the backscattered light towards an inner reflective surface of a circle-to-line converter, a multiple field-of-view subsystem having at least a first detector configured to receive light reflected by the circle-to-line converter, and a single field-of-view subsystem configured to receive a second portion of the backscattered light, the second portion not having been reflected by the circle-to-line converter. The single field-of-view subsystem may include a dual channel circular polarization detector for distinguishing between liquid water droplets and ice crystals based on information in the single field-of-view. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种通过检测浮子液滴的存在并且通过在激光束穿透云时测量横梁的横向散射的装置，提供反映这些液滴直径的轮廓的信息。 解决方案：飞行中的多个视场水滴传感器包括照明部分和检测部分。 照明部分包括被配置为输出光束的第一光束发射器。 所述检测部分包括万花筒，所述万花筒被配置为将所述反向散射光的第一部分朝向圆到线转换器的内部反射表面通道，多视野子系统具有至少第一检测器，其被配置为接收由 配置成接收反向散射光的第二部分的第一部分没有被圆形到直线转换器反射。 单个视野子系统可以包括双通道圆偏振检测器，用于基于单个视场中的信息来区分液体水滴和冰晶。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010112952A

公开(公告)日：2010-05-20

申请号：JP2009254045

申请日：2009-11-05

Applicant: Rosemount Aerospace Inc ,  ローズマウント・エアロスペース・インコーポレーテッドRosemount Aerospace Inc.

Inventor： RAY MARK D ,  NESNIDAL MICHAEL P ,  SOCHA DAVID M

IPC: G01S17/95 ,  B64D15/20 ,  G01W1/00 ,  G01W1/14 ,  G08B19/02

CPC classification number: B64D15/20

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for optically detecting and identifying liquid waterdrops and ice crystals in the air, including an irradiation part and a detection part. SOLUTION: The irradiation part outputs irradiated beams of circularly polarized light. The detection part receives back-scattered light of circularly polarized light from water content in clouds, in response to irradiation beam. The back-scattered light of circularly polarized light is passed through a circularly polarized light device and converted to the back scattered light of linearly polarized light, and the converted light is divided into two components. By an optional selection, each of the two components is subjected to further receiving a linearly polarized light for removing all orthogonally polarized light of leakage type. Next, two components are detected optically and by using the resulting detection signal, one or more parameters reflecting the presence/absence of ice crystal and/or waterdrops in the air are calculated. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于光学检测和识别空气中的液体水滴和冰晶的装置，包括照射部分和检测部分。 照射部输出照射的圆偏振光束。 检测部分响应于照射束，从云中的含水量接收圆偏振光的反向散射光。 圆偏振光的背散射光通过圆偏振光装置并转换为线偏振光的后向散射光，并将转换的光分成两部分。 通过可选择的选择，两个分量中的每一个进一步接收用于去除所有泄漏类型的正交偏振光的线性偏振光。 接下来，光学地检测两个分量，并且通过使用所得到的检测信号，计算反映空气中存在/不存在冰晶和/或水滴的一个或多个参数。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：AU2009222502A1

公开(公告)日：2010-05-20

申请号：AU2009222502

申请日：2009-09-30

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： NESNIDAL MICHAEL P ,  RAY MARK D ,  SOCHA DAVID M

IPC: G01N21/00

Abstract: A device for optically detecting and distinguishing airborne liquid water droplets and ice crystals includes an illumination portion and a detection portion. The illumination portion (312) outputs a circularly polarized illuminating beam (318). The detection portion receives circularly polarized backscattered light from moisture in the cloud, in response to the illuminating beam. The circularly polarized backscattered light (322) is passed through a circular polarizer (333) to convert it into linearly polarized backscattered light, which is split into two components. Each of the two components is optionally subject to further linear polarization to filter out any leakage-type orthogonal polarization. The two components are then optically detected and the resulting detection signals are used to calculate one or more parameters reflective of the presence or absence of airborne ice crystals and/or water droplets.

公开(公告)号：BR102012019439A2

公开(公告)日：2013-11-12

申请号：BR102012019439

申请日：2012-07-25

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： RAY MARK D ,  HALAMA GARY E ,  ANDERSON KAARE J ,  NESNIDAL MICHAEL P

IPC: G01N15/02

公开(公告)号：AU2012203742A1

公开(公告)日：2013-05-09

申请号：AU2012203742

申请日：2012-06-27

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： RAY MARK D ,  ANDERSON KAARE J ,  NESNIDAL MICHAEL P

IPC: G01S17/95

Abstract: In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size 5 distribution of water droplets in a cloud comprises sampling a depth of the cloud with a beam of electromagnetic radiation, measuring a scattering signal of the electromagnetic radiation returned from the cloud over a range of field of view angles to provide a measured scattering curve [proa,(O)], removing a portion of the measured scattering curve, replacing the removed portion with an extrapolation of the remaining measured scattering 10 curve to provide an estimated scattering curve, and determining a first estimate droplet size distribution [nt1)(D)] from the estimated scattering curve. r --- - gO) I ) 0) E -S* ' 0 uE E*1 = COD C) 0 =C ?=, ar :C 0 CD cEO) wa) a) M C E0 0 U =)~~~~ - )m II) 0i E >cJ - E) - n a) Z (0 (O!a)' a) )~ CW 0 J to 0- cu, :ZL a)U E~a ixL ) 0 6c' a) Ea E. 10 U) U n 0' u )c 3( 0) .0 C 0 0 0 M Ot cli ) m * = > E i0)0 33 1 ? E E L) -p- -c- .- )~ 0_ 00 -M c 0L :3 z 0 0~ Q) U ' L)Cl)0 0 o c'D -------

公开(公告)号：CA2780525C

公开(公告)日：2020-09-22

申请号：CA2780525

申请日：2012-06-21

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： RAY MARK D ,  ANDERSON KAARE J ,  NESNIDAL MICHAEL P

IPC: G01S13/95

Abstract: In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of the cloud with a beam of electromagnetic radiation, measuring a scattering signal of the electromagnetic radiation returned from the cloud over a range of field of view angles to provide a measured scattering curve [P total(.theta.)], removing a portion of the measured scattering curve, replacing the removed portion with an extrapolation of the remaining measured scattering curve to provide an estimated scattering curve, and determining a first estimate droplet size distribution [n(1)(D)] from the estimated scattering curve.

公开(公告)号：CA2780525A1

公开(公告)日：2013-04-25

申请号：CA2780525

申请日：2012-06-21

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： RAY MARK D ,  ANDERSON KAARE J ,  NESNIDAL MICHAEL P

IPC: G01S13/95

Abstract: In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of the cloud with a beam of electromagnetic radiation, measuring a scattering signal of the electromagnetic radiation returned from the cloud over a range of field of view angles to provide a measured scattering curve [P total(.theta.)], removing a portion of the measured scattering curve, replacing the removed portion with an extrapolation of the remaining measured scattering curve to provide an estimated scattering curve, and determining a first estimate droplet size distribution [n(1)(D)] from the estimated scattering curve.

公开(公告)号：AU2010202220A1

公开(公告)日：2011-02-10

申请号：AU2010202220

申请日：2010-05-31

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： RAY MARK D ,  NESNIDAL MICHAEL P

IPC: G01S7/481 ,  G01N21/84

Abstract: An airborne multiple field-of-view water droplet sensor includes an illumination portion and a detection portion. The illumination portion includes a first optical beam emitter configured to output a light beam. The detection portion includes a kaleidoscope configured to channel a first portion of the backscattered light towards an inner reflective surface of a circle-to-line converter, a multiple field of view subsystem having at least a first detector configured to receive light reflected by the circle-to-line converter, and a single field-of-view subsystem configured to receive a second portion of the backscattered light, the second portion not having been reflected by the circle-to-line converter. The single field-of-view subsystem may include a dual channel circular polarization detector for distinguishing between liquid water droplets and ice crystals based on information in the single field-of-view.

公开(公告)号：BR102012019441A2

公开(公告)日：2013-11-05

申请号：BR102012019441

申请日：2012-07-25

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： RAY MARK D ,  ANDERSON KAARE J ,  NESNIDAL MICHAEL P

IPC: G01N15/02

Abstract: Methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of the cloud with a beam of electromagnetic radiation, measuring a scattering signal of the electromagnetic radiation returned from the cloud over a range of field of view angles to provide a measured scattering curve [ p total (¸)], removing a portion of the measured scattering curve, replacing the removed portion with an extrapolation of the remaining measured scattering curve to provide an estimated scattering curve, and determining a first estimate droplet size distribution [ n (1) (D)] from the estimated scattering curve.

公开(公告)号：AU2012203739A1

公开(公告)日：2013-05-16

申请号：AU2012203739

申请日：2012-06-27

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： RAY MARK D ,  HALAMA GARY E ,  ANDERSON KAARE J ,  NESNIDAL MICHAEL P

IPC: G01S17/95

Abstract: In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of a cloud with a 5 beam of electromagnetic radiation, measuring echo intensities of the electromagnetic radiation returned from the cloud with a detector, determining a measured optical extinction coefficient from the measured echo intensities, determining a measured backscatter coefficient from the measured echo intensities, determining a lidar ratio from the measured optical extinction coefficient and the measured backscatter coefficient, 10 determining from the lidar ratio a value pair comprising a shape parameter (p) and median volume diameter (DMVD) of the water droplets, and determining a size distribution of the water droplets using the value pair (pt, DMVD). Qa) U) 0 ) c E o (D Z000 U)a C () or :t-- > ) 0 ) C C ) a) ~ a) Lcuf)l E 0 E E 0 a 0aa C) "0 Z0( E: E *Q 0-0 a)cu -0 0- C)- 0 0 a) 0a) C) I o- VZ 0 * 0M C U) 0,2)U)U aa a aD aa E m E E E E ff af C) a) a