Roy M Rasmussen

US Patent:

6546353, Apr 8, 2003

Filed:

Sep 13, 1999

Appl. No.:

09/395088

Inventors:

John Hallett - Reno NV
Roy Martin Rasmussen - Boulder CO

Assignee:

University Corporation for Atmospheric Research - Boulder CO
The Board of Regents of the University and Community College System of Nevada - Reno NV

International Classification:

G01W 100

US Classification:

702130, 702 3, 7317016, 7317017, 7317021

Abstract:

A precipitation measuring system comprising a top thermal plate positioned to maximize exposure to falling precipitation and includes at least one ridge circumscribing the top surface for capturing precipitation. A second thermal plate is positioned under the top thermal plate to protect it from falling precipitation while still exposing it to the same atmospheric temperature and wind conditions. At least one solar radiation sensor is connected to the precipitation measuring system to measure solar radiation contacting at least one of the top and bottom thermal plates. During a precipitation event, the top and bottom thermal plates are maintained at a constant temperature and a power consumption curve for each thermal plate is quantified. The precipitation rate is measured by the difference in the power consumption curve for the top thermal plate and the power consumption curve for the bottom thermal plate.

US Patent:

6675100, Jan 6, 2004

Filed:

Feb 18, 2003

Appl. No.:

10/368509

Inventors:

John Hallett - Reno NV
Roy Martin Rasmussen - Boulder CO

Assignee:

University Corporation for Atmospheric Research - Boulder CO
The Board of Regents of the University College System of Nevada - Boulder CO

International Classification:

G01W 100

US Classification:

702 3, 702130, 7317016, 7317017, 7317021, 356336

Abstract:

A precipitation measuring system comprising a top thermal plate positioned to maximize exposure to falling precipitation and includes at least one ridge circumscribing the top surface for capturing precipitation. A second thermal plate is positioned under the top thermal plate to protect it from falling precipitation while still exposing it to the same atmospheric temperature and wind conditions. At least one solar radiation sensor is connected to the precipitation measuring system to measure solar radiation contacting at least one of the top and bottom thermal plates. During a precipitation event, the top and bottom thermal plates are maintained at a constant temperature and a power consumption curve for each thermal plate is quantified. The precipitation rate is measured by the difference in the power consumption curve for the top thermal plate and the power consumption curve for the bottom thermal plate.

US Patent:

6708133, Mar 16, 2004

Filed:

Feb 18, 2003

Appl. No.:

10/368548

Inventors:

John Hallett - Reno NV
Roy Martin Rasmussen - Boulder CO

Assignee:

University Corporation for Atmospheric Research
The Board of Regents of the University College System of Nevada, on behalf of Desert Research Inst.

International Classification:

G01W 100

US Classification:

702130, 702 3, 7317016, 7317017, 7317021

Abstract:

A precipitation measuring system comprising a top thermal plate positioned to maximize exposure to falling precipitation and includes at least one ridge circumscribing the top surface for capturing precipitation. A second thermal plate is positioned under the top thermal plate to protect it from falling precipitation while still exposing it to the same atmospheric temperature and wind conditions. At least one solar radiation sensor is connected to the precipitation measuring system to measure solar radiation contacting at least one of the top and bottom thermal plates. During a precipitation event, the top and bottom thermal plates are maintained at a constant temperature and a power consumption curve for each thermal plate is quantified. The precipitation rate is measured by the difference in the power consumption curve for the top thermal plate and the power consumption curve for the bottom thermal plate.

US Patent:

6711521, Mar 23, 2004

Filed:

Feb 18, 2003

Appl. No.:

10/368506

Inventors:

John Hallett - Reno NV
Roy Martin Rasmussen - Boulder CO

Assignee:

University Corporation For Atmospheric Research - Boulder CO
The Board of Regents of the University Community College System of Nevada

International Classification:

G01W 100

US Classification:

702130, 702 3, 7317016, 7317017, 7317021

Abstract:

A precipitation measuring system comprising a top thermal plate positioned to maximize exposure to falling precipitation and includes at least one ridge circumscribing the top surface for capturing precipitation. A second thermal plate is positioned under the top thermal plate to protect it from falling precipitation while still exposing it to the same atmospheric temperature and wind conditions. At least one solar radiation sensor is connected to the precipitation measuring system to measure solar radiation contacting at least one of the top and bottom thermal plates. During a precipitation event, the top and bottom thermal plates are maintained at a constant temperature and a power consumption curve for each thermal plate is quantified. The precipitation rate is measured by the difference in the power consumption curve for the top thermal plate and the power consumption curve for the bottom thermal plate.

US Patent:

6714869, Mar 30, 2004

Filed:

Feb 18, 2003

Appl. No.:

10/368504

Inventors:

John Hallett - Reno NV
Roy Martin Rasmussen - Boulder CO

Assignee:

University Corporation for Atmospheric Research - Boulder CO
The Board of Regents of the University of College System of Nevada - Boulder CO

International Classification:

G01W 100

US Classification:

702 3, 702130, 7317016, 7317017, 7317021, 356336

Abstract:

A precipitation measuring system comprising a top thermal plate positioned to maximize exposure to falling precipitation and includes at least one ridge circumscribing the top surface for capturing precipitation. A second thermal plate is positioned under the top thermal plate to protect it from falling precipitation while still exposing it to the same atmospheric temperature and wind conditions. At least one solar radiation sensor is connected to the precipitation measuring system to measure solar radiation contacting at least one of the top and bottom thermal plates. During a precipitation event, the top and bottom thermal plates are maintained at a constant temperature and a power consumption curve for each thermal plate is quantified. The precipitation rate is measured by the difference in the power consumption curve for the top thermal plate and the power consumption curve for the bottom thermal plate.

US Patent:

6751571, Jun 15, 2004

Filed:

Feb 18, 2003

Appl. No.:

10/368508

Inventors:

John Hallett - Reno NV
Roy Martin Rasmussen - Boulder CO

Assignee:

University Corporation for Atmospheric Research - Boulder CO
The Board of Regents of the University Community College System of Nevada on behalf of Desert Research Inst. - Boulder CO

International Classification:

G01W 100

US Classification:

702130, 702 3, 7317016, 7317017, 7317021

Abstract:

A precipitation measuring system comprising a top thermal plate positioned to maximize exposure to falling precipitation and includes at least one ridge circumscribing the top surface for capturing precipitation. A second thermal plate is positioned under the top thermal plate to protect it from falling precipitation while still exposing it to the same atmospheric temperature and wind conditions. At least one solar radiation sensor is connected to the precipitation measuring system to measure solar radiation contacting at least one of the top and bottom thermal plates. During a precipitation event, the top and bottom thermal plates are maintained at a constant temperature and a power consumption curve for each thermal plate is quantified. The precipitation rate is measured by the difference in the power consumption curve for the top thermal plate and the power consumption curve for the bottom thermal plate.

US Patent:

7129846, Oct 31, 2006

Filed:

Aug 24, 2004

Appl. No.:

10/924569

Inventors:

Roy Martin Rasmussen - Boulder CO, US
Frank W. Hage - Boulder CO, US
Rondal K. Moore - Aurora CO, US

Assignee:

University Corporation for Atmospheric Research - Boulder CO

International Classification:

G08B 19/02

US Classification:

340580, 340601, 244134 R

Abstract:

A de-icing information system processes weather data indicating precipitation rate and temperature to determine a check time for a de-icing fluid. The de-icing fluid remains effective if applied after the check time, and the de-icing fluid may not remain effective if applied before the check time. The de-icing information system transfers the de-icing information indicating the check time.

US Patent:

7191643, Mar 20, 2007

Filed:

Dec 22, 2004

Appl. No.:

11/025214

Inventors:

Roy Martin Rasmussen - Longmont CO, US
John Hallett - Reno NV, US

Assignee:

University Corporation for Atmospheric Research - Boulder CO
The Board of Regents of the University & Community College Systems of Nevada on behalf of Desert Research Institute - Reno NV

International Classification:

G01W 1/00

US Classification:

7317026

Abstract:

A sensor system comprises a first sensor, a second sensor, and circuitry. The first sensor collects non-frozen liquid with a first collection efficiency, but does not collect frozen liquid. The second sensor collects non-frozen liquid with a second collection efficiency and also collects frozen liquid. The first collection efficiency and the second collection efficiency are substantially equivalent. The circuitry maintains the first sensor and the second sensor at a substantially constant temperature. The circuitry determines a measurement of the frozen liquid based on maintaining the first sensor and the second sensor at the substantially constant temperature. In some examples, multiple sensor systems can be used in combination to improve the accuracy of the measurement.