Scanner for vibration mapping

• US 8,368,551 B2
• Filed: 01/20/2010
• Issued: 02/05/2013
• Est. Priority Date: 01/20/2010
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Peczalski, Andy, O'Brien, Gary Richard Jr., Huseth, Steve D.
• Primary Examiner(s): Wu, Daniel
• Assistant Examiner(s): LITTLEJOHN JR, MANCIL H
• Application Number:
  US12/690,605
• Publication Number:
  US 20110175746A1
• Time in Patent Office: 1,112 Days
• Field of Search: 340/682, 340/683, 340/679, 340/856.4, 340/554, 340/669, 342/189, 735/70
• US Class Current: 340/683
• CPC Class Codes: G01S 13/32 using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
• CPC Class Codes: G01S 13/50 Systems of measurement based on relative movement of target
• CPC Class Codes: G01S 13/88 Radar or analogous systems specially adapted for specific applications electromagnetic prospecting or detecting of objects, e.g. near-field detection, G01V3/00

Abstract

A method of detecting motion in components that form part of a structure. The method includes flooding a first component with transmitted radio frequency signals and receiving reflected radio frequency signals from the first component with an antenna. The method further includes generating a first set of intermediate frequency signals based on differences between the transmitted radio frequency signals and the reflected radio frequency signals and measuring the first set of intermediate frequency signals. The method further includes flooding a second component with transmitted radio frequency signals and receiving reflected radio frequency signals from the second component with an antenna. The method further includes generating a second set of intermediate frequency signals based on differences between the transmitted radio frequency signals and the additional reflected radio frequency signals and measuring the second set of intermediate frequency.

Claims

1. A method of detecting motion in components that form part of a structure, the method comprising:

flooding a first component with transmitted radio frequency signals;

receiving reflected radio frequency signals from the first component with an antenna;

generating a first set of intermediate frequency signals based on differences between the transmitted radio frequency signals and the reflected radio frequency signals;

measuring the first set of intermediate frequency signals;

flooding a second component with transmitted radio frequency signals;

receiving reflected radio frequency signals from the second component with an antenna;

generating a second set of intermediate frequency signals based on differences between the transmitted radio frequency signals and the additional reflected radio frequency signals;

measuring the second set of intermediate frequency signals, and

wherein flooding a first component with transmitted radio frequency signals includes placing an indicator on the first component that identifies where the transmitted radio frequency signals are directed, and flooding a second component with transmitted radio frequency signals includes placing an indicator on the second component that identifies where the transmitted radio frequency signals are directed, and wherein placing an indicator on the first component that identifies where the transmitted radio frequency signals are directed includes projecting a beam of light onto the first component, and wherein placing an indicator on the second component that identifies where the transmitted radio frequency signals are directed includes projecting a beam of light onto the second component, and wherein projecting a beam of light onto the first component includes aligning a light emitting device relative to a radar that floods the first component with transmitted radio frequency signals, and projecting a beam of light onto the second component includes aligning a light emitting device relative to the radar that floods the second component with transmitted radio frequency signals.

2. The method of claim 1 further comprising:

filtering the first set of intermediate signals to isolate signals associated with motion of the first component; and

filtering the second set of intermediate signals to isolate signals associated with motion of the second component.

3. The method of claim 1 wherein filtering the first set of intermediate signals to isolate signals associated with motion of the first component includes filtering the first set of intermediate signals received from the antenna with a filter, and wherein filtering the second set of intermediate signals to isolate signals associated with motion of the second component includes filtering the second set of intermediate signals received from the antenna with the filter.

4. The method of claim 1 wherein flooding a first component with transmitted radio frequency signals and flooding a second component with transmitted radio frequency signals each include transmitting the radio frequency signals with a transmitting portion of the antenna.

5. The method of claim 1 wherein receiving reflected radio frequency signals from the first component with an antenna and receiving reflected radio frequency signals from the second component with an antenna each include receiving the reflected radio frequency signals with a receiving portion of the antenna.

6. The method of claim 1 wherein measuring the first set of intermediate frequency signals includes determining motion of the first component based on the first set of intermediate signals and measuring the second set of intermediate frequency signals includes determining motion of the second component based on the second set of intermediate signals.

7. The method of claim 6 wherein determining motion of the first component based on the on the first set of intermediate signals includes determining displacement of the first component relative to the structure, and wherein determining motion of the second component based on the on the second set of intermediate signals includes determining displacement of the second component relative to the structure.

8. The method of claim 6 wherein determining motion of the first component based on the on the first set of intermediate signals includes determining vibration of the first component relative to the structure, and wherein determining motion of the second component based on the on the second set of intermediate signals includes determining vibration of the second component relative to the structure.

9. The method of claim 1 wherein aligning a light emitting device relative to the radar includes aligning a center of the first radio frequency signal with a center of the beam of light.

10. The method of claim 1 wherein flooding a second component with transmitted radio frequency signals includes manipulating by hand the antenna that supplies the radio frequency signals in order to direct the radio frequency signals at the second component.

11. The method of claim 1 wherein flooding a second component with transmitted radio frequency signals includes using a gimbal to maneuver the antenna that supplies the radio frequency signals in order to direct the radio frequency signals at the second component.

12. The method of claim 1 wherein flooding a second component with transmitted radio frequency signals includes using a phased array antenna to direct the radio frequency signals at the second component.

13. The method of claim 1 further comprising:

aligning a camera relative to a radar detector;

recording an image of the first component using the camera; and

recording an image of the second component using the camera.

14. The method of claim 13 wherein aligning a camera relative to a radar detector includes aligning a center of the first radio frequency signal with a center of the camera aperture and aligning a center of the second radio frequency signal with a center of the camera aperture.