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：ES2380061T3

公开(公告)日：2012-05-08

申请号：ES10001506

申请日：2008-11-06

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： RAY MARK D ,  SWENSON JAMES W ,  MENEELY CILINTON T

IPC: G01S7/481 ,  G01S7/497 ,  G01S17/42

Abstract: Un espejo de detección de la luz y medición de la distancia (16), que comprende: una parte receptora (22); y una parte transmisora (20), estando los respectivos centroides (30) de las partes receptora y transmisora (22, 20) situados en un punto común sobre el eje de exploración (26), rotando (24) las partes receptora y transmisora (22, 20) sobre el eje de exploración (26), estando la parte transmisora (20) situada de manera que refleje un pulso de luz hacia el objetivo (40) como un punto transmitido (42), estando la parte receptora (22) situada para dirigir el pulso de luz reflejado del objetivo (40) a la parte receptora (22) como el campo de visión de la parte receptora (44), caracterizado porque: la parte transmisora (20) está compensada por un ángulo (56) sobre el eje de exploración (26) con relación al plano de superficie de la parte receptora; y el campo de visión de la parte receptora (44) coincide con el punto transmitido (42) en función de la distancia al objetivo (40).

公开(公告)号：DK2065724T3

公开(公告)日：2011-12-19

申请号：DK08253634

申请日：2008-11-06

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： SWENSON JAMES W ,  RAY MARK D ,  MENEELY CLINTON T

IPC: G01S7/481 ,  G01S7/497 ,  G01S17/42

公开(公告)号：AT522824T

公开(公告)日：2011-09-15

申请号：AT10001507

申请日：2008-11-06

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： RAY MARK D ,  SWENSON JAMES W ,  MENEELY CLINTON T

IPC: G01S7/481 ,  G01S7/497 ,  G01S17/42

Abstract: A method for determining a range to a target comprises rotating a mirror unit around a scan axis. A light pulse is reflected off of a transmitting portion of the mirror unit toward the target. A light pulse, received from the target, is reflected off of a receiving portion of the mirror unit toward a receiver. The method includes compensating for a lag angle, caused by the rotation of the mirror unit around the axis, between the time the light pulse is reflected from the transmitting portion and the time the received light pulse is reflected from the receiving portion. The compensation includes angularly offsetting the transmitting portion about the scan axis from a surface plane of the receiving portion.

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：AU2002322525B2

公开(公告)日：2008-04-03

申请号：AU2002322525

申请日：2002-07-18

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： JAMIESON JAMES R ,  RAY MARK D ,  MENEELY CLINTON T

IPC: G01P5/00 ,  G01S7/481 ,  G01S7/483 ,  G01S17/42 ,  G01S17/58 ,  G01S17/87 ,  G01S17/88 ,  G01S17/93 ,  G01S17/95

公开(公告)号：DE60217938T2

公开(公告)日：2007-10-25

申请号：DE60217938

申请日：2002-07-18

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： JAMIESON JAMES R ,  RAY MARK D

IPC: B64D45/00 ,  G01S17/42 ,  B64D43/00 ,  B64D45/08 ,  G01C23/00 ,  G01P5/26 ,  G01S7/481 ,  G01S7/483 ,  G01S7/51 ,  G01S17/02 ,  G01S17/06 ,  G01S17/58 ,  G01S17/87 ,  G01S17/88 ,  G01S17/93

Abstract: A wide field scanning laser obstacle awareness system (LOAS) for use on-board an aircraft is provided. The LOAS serves for alerting an operator of obstacles posing a risk of collision with said aircraft. The system comprising: a light source for generating a pulsed laser beam of light; a light detector; a plurality of optical elements for directing said pulsed laser beam from said system with a predetermined pattern scanned azimuthally over a wide field, said plurality of optical elements also for receiving reflections of said pulsed laser beam from at least one object along said predetermined pattern and directing said laser beam reflections to said light detector. The predetermined pattern includes a variation in elevation of the directed pulsed laster beam in relation to an elevation of the aircraft. Additionally, the system has means for determining substantially the azimuth position of the directed pulsed laser beam, means for determining substantially the elevation of the directed pulsed laser beam, and a display apparatus including an image screen for displaying a limited field of view, wherein the wide field of view of the system extends substantially beyond the field of view of the image screen. A processor means is coupled to said light detector, display apparatus, azimuth position determining means and elevation determining means for determining the location of the at least one object in range, azimuth and elevation in relation to a flight path of the aircraft. The processor means drives the display apparatus to display an indication representing the at least one object in range, azimuth and elevation. The indication of the at least one object comprises an image of a bar. The bar image is disposed vertically at the far left of the screen of the display apparatus when the object location is azimuthally outside the field of view of the display apparatus to the left, and the bar image is disposed vertically at the far right of the screen of the display apparatus when the object location is azimuthally outside the field of view of the display apparatus to the right.

公开(公告)号：AU2007203608A1

公开(公告)日：2007-08-23

申请号：AU2007203608

申请日：2007-08-02

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： JAMIESON JAMES R ,  MENEELY CLINTON T ,  RAY MARK D

IPC: B64D45/00 ,  B64C27/00 ,  B64D43/00 ,  B64D45/08 ,  G01C23/00 ,  G01P5/26 ,  G01S7/481 ,  G01S7/483 ,  G01S17/06 ,  G01S17/42 ,  G01S17/58 ,  G01S17/87 ,  G01S17/88 ,  G01S17/93 ,  G02B27/01

公开(公告)号：DE60210993T2

公开(公告)日：2007-01-11

申请号：DE60210993

申请日：2002-07-18

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： JAMIESON JAMES R ,  RAY MARK D ,  MENEELY CLINTON T

IPC: B64D45/00 ,  G01S17/93 ,  B64C27/00 ,  B64D43/00 ,  B64D45/08 ,  G01C23/00 ,  G01P5/26 ,  G01S7/48 ,  G01S7/481 ,  G01S7/483 ,  G01S17/06 ,  G01S17/42 ,  G01S17/58 ,  G01S17/87 ,  G01S17/88 ,  G02B27/01

Abstract: A block arrangement of optical elements is provided for use as a transmitter/receiver for a light detection and ranging (LIDAR) system. The block arrangement comprises: a plurality of glass modules aligned together as a block to form a plurality of optical paths therein and secured together to maintain said alignment; a collimated light source secured to said block for generating a coherent beam of light over at least one optical path in said block which guides said coherent beam of light to an exit point of said block; and a light detector secured to said block. The block serves for receiving a return coherent beam of light and is configured to conduct said return coherent beam of light to the light detector over at least one other optical path formed in said block.