NDT.net - September 1998, Vol.3 No.9

Table of Contents ECNDT '98

Session: Aerospace

New Developments of Pulsed Holography for Industrial Applications

O. Petillon*, Aerospatiale
*Corresponding Author Contact:
Aerospitale, F-91893 Suresnes, France ; ODILE.PETILLON@siege.aerospatiale.fr

TABLE OF CONTENTS


Introduction

Developments in holography


Fig 1:
loud speaker with t = 40 µs Ø 30 field viewed on the CCD

Fig 2:
loud speaker with t = a few s

Fig 3:
thermal loading - honeycomb/skin debonding

Fig 4:
delamination in a G/E stiffened panel 640 x 480 CCD image

Fig 5:
electrical casing

Fig 6:
thermal loading - rubber debonding - 1024 x 1024 CCD

Fig 7:
Shock loading (0.060 ms after impact)- shearography

Fig 8:
Shock loading (0.030 ms after impact) - holography

Qualitative validation in industrial environment

Quantitative results and test monitoring

Conclusion

Acknowledgements

Bibliography

  1. Digital holographic interferometry for shape and vibration analysis
    HJ. Tiziani, G. Pedrini, SPIE conference (1996)
  2. Transient vibration measurements by using multi-pulses digital holography
    G. Pedrini, P. Fröning, H. Fessler, HJ. Tiziani, Optics & Laser Technology (1998)

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