Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate
2006-08-01
2006-08-01
Williams, Hezron (Department: 2856)
Measuring and testing
Vibration
By mechanical waves
C073S602000, C073S799000
Reexamination Certificate
active
07082833
ABSTRACT:
An acoustic energy-based, non-contact or contact testing approach provides low cost, highly accurate, and reliable information to (a) identify flaws and anomalies and (b) assess the integrity of a particular material. This approach is not hindered by surface conditions or impediments, and indeed, looks beneath the surface of the material by propagating an acoustic wave through the material using two differential transducers. A dynamic differential measurement is made of the material under a load condition and an unloaded condition that allows identification and assessment of various characteristics of the material. Multiple “windows” of information may be generated that permit (a) direct detection of flaws, defects, and anomalies using a scattering technique, (b) detection of crack closure and opening used to assess the stability of the material, (c) determination of strain on the material which relates to its performance, and (d) determination of defect dynamics linked to the defect size and stability.
REFERENCES:
patent: 4014208 (1977-03-01), Moore et al.
patent: 4015464 (1977-04-01), Miller et al.
patent: 4062227 (1977-12-01), Heyman
patent: 4117731 (1978-10-01), Heyman
patent: 4265120 (1981-05-01), Morris et al.
patent: 4363242 (1982-12-01), Heyman
patent: 4413518 (1983-11-01), Jones
patent: 4471657 (1984-09-01), Voris et al.
patent: 4624142 (1986-11-01), Heyman
patent: 4823609 (1989-04-01), Yost
patent: 4843346 (1989-06-01), Heyman et al.
patent: 5115681 (1992-05-01), Bouheraoua et al.
patent: 5170366 (1992-12-01), Passarelli
patent: 5172591 (1992-12-01), Bohon
patent: 5237516 (1993-08-01), Heyman
patent: 6009759 (2000-01-01), Kibblewhite et al.
patent: 6155292 (2000-12-01), Kurata
patent: 6330827 (2001-12-01), Johnson et al.
patent: 6543288 (2003-04-01), Blouin et al.
patent: 2002/0121132 (2002-09-01), Breed et al.
Notification of Transmittal of the International Search Report or the Declaration mailed Dec. 28, 2005 and Written Opinion of the International Searching Authority mailed Dec. 28, 2005 in corresponding PCT Application PCT/US04/17964.
Heyman et al.; “A Differential Guided Wave Nonlinear Spectroscopy System;” U.S. Appl. No. 60/476,218, filed Jun. 6, 2003.
Heyman et al.; “Bond Testing System, Method, and Apparatus;” U.S. Appl. No. 10/816,667, filed Apr. 2, 2004.
Joseph S. Heyman; “Residual Stress Characterization with a Magnetic/Ultrasonic Technique;” proceedings of IEEE, 1984 Ultrasonics Symposium, Dallas, TX; Nov. 14-16, 1984; pp. 950-954.
Sidney G. Allison, Joseph S. Heyman, and K. Salama; “Ultrasonic Measurement of Residual Deformation Stress in Thin Metal Plates Using Surface Acoustic Waves;” proceedings of IEEE 1983 Symposium, Atlanta, GA; Oct. 31-Nov. 2, 1983; pp. 995-999.
Joseph S. Heyman and Larry L. Yoder; “An Interferometric Measurement of the Acoustoelastic Constant of Rock Core Samples;” proceedings of IEEE, 1983 Symposium, Atlanta, GA; Oct. 31-Nov. 2, 1983; pp. 980-983.
Joseph S. Heyman and Wolfgang Issler; “Ultrasonic Mapping of Internal Stresses;” proceedings of IEEE 1982 Ultrasonics Symposium, San Diego, CA; Oct. 27-29, 1982; pp. 893-897.
Joseph S. Heyman; “A CW Ultrasonic Bolt-Strain Monitor;” SESA Experimental Mechanics, 17; 1977; p. 183.
J.E. Lynch, J.S. Heyman, and A.R. Hargens; “Ultrasonic Device for the Noninvasive Diagnosis of Compartment Syndrome;” Physiological Measurement, vol. 25, Issue 1, 2004; pp. N1-N9.
Robert S. Rogowski, Milford S. Holben, Patrick Sullivan, and Joseph S. Heyman; “A Method for Monitoring Strain in Large Structures: Optical and Radio Frequency Devices;” presented at the Review of Progress in Quantitative Nondestructive Evaluation, Williamsburg, VA; Jun. 21-26, 1987; pp. 559-563.
Sidney G. Allison, Joseph S. Heyman, Min Namkung, and K. Salama; “Ultrasonic Characterization of Plastic Deformation in Metals;” Review of Progress in Quantitative NDE; Plenum Press, New York (1986); pp. 1565-1573.
“Pulsed Phase-Locked-Loop Strain Monitor” A high-resolution, fully-automated strain monitor; NASA Tech Brief; Langley Research Center, Hampton, VA; Spring 1981, B-81-10068, LAR-12772.
S.G. Allison, J. S. Heyman, K. Smith, and K. Salama; “Effect of Prestrain Upon Acoustoelastic Properties of Carbon Steel;” 1984 Ultrasonics Symposium; NASA Langley Research Center, Hampton, VA; pp. 997-1002.
J. Frankel and W. Scholz; “Ultrasonic Studies of Stresses and Plastic Deformation in Steel During Tension and Compression;” US Army Armament Research, Development, & Engineering Ctr., Watervliet, NY; pp. 1577-1584.
J. S. Heyman, S. G. Allison, and K. Salama; “Influence of Carbon Content on Higher-Order Ultrasonic Properties in Steels;” 1983 Ultrasonics Symposium; NASA-Langley Research Center, Hampton, VA; University of Houston, TX; pp. 991-994.
M. Namkung, R. DeNale, and D. Utrata; “Uniaxial Stress and Wave Mode Dependence of Magnetoacoustic Responses in Iron-Base Alloys;” NASA Langley Research Center, Hampton, VA.
Heyman Joseph S.
Lynch John T.
Luna Innovations
Miller Rose M.
Williams Hezron
LandOfFree
Method and apparatus for determining and assessing a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for determining and assessing a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining and assessing a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3628758