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Surface flaws using a modified AC magnetic bridge

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Abstract

Scanning patterns of a modified AC magnetic bridge are established through the use of finite-width flaws. From these patterns, the widths and depths of surface flaws can be determined. The technique was also applied fatigue cracks.

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References

  1. Zinke, O.H. andJacovelli, P.B., “A Nanocentimeter Transducer,”Rev. Sci. Inst.,36,914–916 (1965).

    Google Scholar 

  2. Jacovelli, P.B. andZinke, O.H., “Magnetic Flux Sensor,”Rev. Sci. Inst.,36,916–920 (1965).

    Google Scholar 

  3. Jacovelli, P.B. andZinke, O.H., “Transient Determinations of Thermal Diffusivities and Dissipations of Metal Foils,”J. Appl. Phys.,37,4117–4119 (1966).

    Article  Google Scholar 

  4. Canada, C.E. andZinke, O.H., “Transient Determinations of Thermal Diffusivities and Emissivities of Metal Foils,”J. Appl. Phys.,49,289–296 (1978).

    Article  Google Scholar 

  5. Zinke, O.H. andSchmidt, W.F., “Linear AC Magnetic Circuit Theory,”IEEE Trans. on Magnetics,29,2207–2212 (1993).

    Article  Google Scholar 

  6. Zinke, O.H., U.S. Patent # 4,901,017 (Feb. 1990).

  7. Schmidt, W.F. andZinke, O.H., “Reluctance Variation as a Result of Lift Off For an AC Magnetic Bridge,”Review of Progress in Quantitative Nondestructive Evaluation, plenum Press, New York 12,1885–1890 (1993).

    Google Scholar 

  8. Zinke, O.H. andSchmidt, W.F., “Measurement of Stress with AC Magnetric Bridges,”Review of Progress in Quantitative Nondestructive Evaluation, Plenum Press, New York,8,2051–2059 (1989).

    Google Scholar 

  9. Schmidt, W.F. andZinke, O.H., “Response of Tensile and Bending Specimens Using an AC Magnetic Bridge,”Review of Progress in Quantitative Nondestructive Evaluation, Plenum Press, New York,11,1163–1168 (1992).

    Google Scholar 

  10. Zinke, O.H. andDerby, R.W., “Nondestructive Measurements of Plating Thicknesses of Copper and Nickel on Shim Stock and of Nickel on Steel,”Review of Progress in Quantitative Nondestructive Evaluation, Plenum Press, New York,11,1953–1958 (1992).

    Google Scholar 

  11. Zinke, O.H. andSchmidt, W.F., “Modified AC Magnetic Bridge Scanning Patterns of Samples Simulating Flaws in Aircraft Seams,”Review of Progress in Quantitative Nondestructive Evaluation, Plenum Press, New York,12,2011–2019 (1993).

    Google Scholar 

  12. Woodward, M.R., “Detection and Characterization of Fatigue Damage in 6061-T6 Aluminum Using the Magnetic Bridge Sensor,” thesis submitted in partial fulfilment of the requirements for the degree of Master of Science, Univ. of Arkansas (1987).

  13. Tilson, J.P. andBlita, J., “Analysis of the Behaviour of Multi-Coiled Eddy-Current Probes,”Brit. J. of Nondest. Test.,27,276–278 (1985).

    Google Scholar 

  14. Langman, R., “A New Eddy-Current Technique for Crack Detection and Measurement,”Brit. J. Nondest. Test.,21,84–87 (1979).

    Google Scholar 

  15. Blitz, J. andAlagoa, K.D., “Eddy-Current Testing of Wood's Metal Models for Inclined Cracks,”Nondest. Test. Int.,18,269–273 (1985).

    Google Scholar 

  16. Auld, B.A., Ayter, S., Muenneman, F. andRiaziat, M., “Eddy-Current Signal Calculations for Surface Breaking Cracks,”Rev. Prog. in Quantitative Nondest. Eval.,3A,489–498 (1984).

    Google Scholar 

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Woodward, M.R., Sreshta, H.A., Zinke, O.H. et al. Surface flaws using a modified AC magnetic bridge. Experimental Mechanics 35, 367–373 (1995). https://doi.org/10.1007/BF02317547

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  • DOI: https://doi.org/10.1007/BF02317547

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