Abstract: A housing for a phased array monostatic sodar system with a transducer array that emits and receives multiple generally conical main beams of sound along different primary axes. The housing includes one or more upwardly-directed sidewalls that define a volume between them that is open to the atmosphere at the top, to emit and receive the beams, and an upper lip at the top of at least one wall, defining a curved perimeter at the top of at least some of the volume that closely conforms to the shape of at least one main beam at the location of the lip.
Type:
Application
Filed:
May 22, 2008
Publication date:
March 10, 2011
Applicant:
Second Wind, Inc.
Inventors:
Niels LaWhite, Louis Manfredi, Walter L. Sass
Abstract: A system and method for correcting wind speed and direction data collected by a sodar or lidar apparatus for the orientation and/or position of the apparatus. There are sensors mounted to the sodar or lidar apparatus that detect the orientation and position of the apparatus. Software is used to adjust in situ the calculations of wind speeds and directions in three dimensions for deviations from some nominal orientation. Software and data structures can be used to cause the inclusion of the orientation and position of the system with the collected data.
Type:
Grant
Filed:
May 30, 2008
Date of Patent:
November 9, 2010
Assignee:
Second Wind, Inc.
Inventors:
Niels LaWhite, Louis Manfredi, Walter L. Sass
Abstract: A method of detecting precipitation with a sodar apparatus that transmits sound beams into the atmosphere, detects echoes returned from the atmosphere, from the echoes determines a Doppler-shifted spectrum comprising the relative strength of the echoes at various Doppler-shifted frequencies, and estimates wind speed and direction. The method includes automatically estimating the presence of precipitation based on the Doppler-shifted spectrum.
Abstract: A system and method for correcting wind speed and direction data collected by a sodar or lidar apparatus for the orientation and/or position of the apparatus. There are sensors mounted to the sodar or lidar apparatus that detect the orientation and position of the apparatus. Software is used to adjust in situ the calculations of wind speeds and directions in three dimensions for deviations from some nominal orientation. Software and data structures can be used to cause the inclusion of the orientation and position of the system with the collected data.
Type:
Application
Filed:
May 30, 2008
Publication date:
February 26, 2009
Applicant:
Second Wind, Inc.
Inventors:
Niels LaWhite, Louis Manfredi, Walter L. Sass
Abstract: A waterproof or water-resistant membrane cover for the acoustic transducer array of a sodar system. The membrane is placed over each transducer of the array. The membrane may be spaced from the array, with a structure such as a frame used to hold the membrane in place relative to the array.
Type:
Application
Filed:
May 30, 2008
Publication date:
December 4, 2008
Applicant:
Second Wind, Inc.
Inventors:
Niels LaWhite, Louis Manfredi, Walter L. Sass
Abstract: A housing for a phased array monostatic sodar system with a transducer array that emits and receives multiple generally conical main beams of sound along different primary axes. The housing includes one or more upwardly-directed sidewalls that define a volume between them that is open to the atmosphere at the top, to emit and receive the beams, and an upper lip at the top of at least one wall, defining a curved perimeter at the top of at least some of the volume that closely conforms to the shape of at least one main beam at the location of the lip. The sidewalls are lined with a non-woven fiber based sound-absorbing material.
Type:
Application
Filed:
May 9, 2008
Publication date:
November 13, 2008
Applicant:
Second Wind, Inc.
Inventors:
Niels LaWhite, Louis Manfredi, Walter L. Sass