Skip to main content
SpringerLink
Log in

Calculation of echo signals from a flat-bottom hole for normal probes

  • Acoustic Methods
  • Published:
Russian Journal of Nondestructive Testing Aims and scope Submit manuscript

Abstract

On the basis of the earlier developed method for determining the echo-signal amplitude from a flat-bottom-hole flaw via the use of the Kirchhoff approximation for constructing DGS diagrams, signals are calculated at an arbitrary arrangement of identical normal circular transducers on the tested surface parallel to the surface of the hole. Expressions for the pressure of a reflected longitudinal wave on the receiving transducer are obtained in a scalar approximation and in a general case. Examples of numerical estimates of the echo-signal amplitudes are presented.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Ermolov, I.N., Teoriya i praktika ul’trazvukovogo kontrolya (Theory and Practice of Ultrasonic Testing), Moscow: Mashinostroenie, 1981.

    Google Scholar 

  2. Ermolov, I.N., Vopilkin, A.Kh., and Badalyan, V.G., Raschety v ul’trazvukovoi defektoskopii (kratkii spravochnik) (Calculations in Ultrasonic Flaw Detection), Moscow: NPTs NK “EKhO+”, 2000.

    Google Scholar 

  3. Ermolov, I.N. and Lange, Yu.V., Nerazrushayushchii kontrol’ (Nondestructive Testing), Vol. 3: Ul’trazvukovoi kontrol’. Spravochnik (Ultrasonic Testing. A Handbook), Moscow: Mashinostroenie, 2004.

    Google Scholar 

  4. Ermolov, I.N., Kontrol’ ul’trazvukom (kratkii spravochnik) (Testing by Ultrasound (Brief Handbook)), Moscow: NPO TsNIITMASh, 1992.

    Google Scholar 

  5. Danilov, V.N. and Ermolov, I.N., Calculations of DGS Diagrams, Defektoskopiya, 2000, no. 7, pp. 35–43 [Russ. J. Nondestr. Test. (Engl. Transl.), no. 7, p. 491].

  6. Danilov, V.N. and Ermolov, I.N., Calculations of DGS Diagrams Based on Peaks of Reflected Acoustic Signals, Defektoskopiya, 2000, no. 12, pp. 35–42 [Russ. J. Nondestr. Test. (Engl. Transl.), no. 12, p. 889].

  7. Yamshchikov, V.S., Danilov, V.N., and Shkuratnik, V.L., Features of Excitation and Reception of Elastic Waves in a Solid Layer by a Piston-Type Transducer, Defektoskopiya, 1983, no. 3, pp. 16–23.

  8. Ivanov, E.A., Difraktsiya elektromagnitnykh voln na dvukh telakh (Diffraction of Electromagnetic Waves at Two Bodies), Minsk: Nauka, 1968.

    Google Scholar 

  9. Brekhovskikh, L.M., Volny v sloistykh sredakh (Waves in Layered Media), Moscow: Nauka, 1973.

    Google Scholar 

  10. Heigher Transcendental Functions (Bateman Manuscript Project), Beitmen, G. and Erdelyi, A., Eds., New York: McGraw-Hill, 1953, Vol. 2. Translated under the title Vysshie transtsendentnye funktsii, Moscow: Nauka, 1974, Vol. 2.

    Google Scholar 

  11. Kruglov, B.A., On Angular Characteristics of Scattering of Plane Monochromatic Longitudinal and Transverse SV-and SH-Waves by an Acoustically Soft Disk in a Solid, Vopr. Materialoved., 2001, no. 4, pp. 66–77.

  12. Danilov, V.N., Estimating the Parameters of Signals Observed during Ultrasonic Testing of a Cylindrical Article with a Normal Probe on the End Surface, Defektoskopiya, 2005, no. 2, pp. 55–71 [Russ. J. Nondestr. Test. (Engl. Transl.), no. 2, p. 102].

  13. Scalia, A. and Sumbatyan, M.A., On Efficient Quantitative Analysis in Real-Time Ultrasonic Detection of Cracks, Ultrasonics, 1999, vol. 37, pp. 239–245.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. ZAO NPO Central Research Institute for Machine-Building Technology, Sharikopodshipnikovskaya ul. 4, Moscow, 115088, Russia

    V. N. Danilov

Authors
  1. V. N. Danilov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. N. Danilov.

Additional information

Original Russian Text © V.N. Danilov, 2007, published in Defektoskopiya, 2007, Vol. 43, No. 11, pp. 23–33.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Danilov, V.N. Calculation of echo signals from a flat-bottom hole for normal probes. Russ J Nondestruct Test 43, 724–732 (2007). https://doi.org/10.1134/S1061830907110034

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1061830907110034

Keywords

Search

Navigation