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Resultat
Capacity test of ultrasonic equipment used for crack detection in railway application
Projekt:
JVTC
Sammanfattning:
Manganese crossings are widely used in the railway sector because of their self-hardening properties, but one major disadvantage is that maintenance actions using condition monitoring of internal flaws are problematic to perform since manganese material is coarse-grained with internal reflections. In the present study, spike- and square-pulsed ultrasonic apparatus, as well as phased aperture and time-corrected gain, together with suitable probes, was tested on manganese material in order to increase the understanding of the signal-noise ratio and the capacity to detect deeply placed internal flaws. Some of the most important results indicate that square pulses and timecorrected gain will increase the signal-noise ratio and also increase the capacity to find deeply placed flaws
Författare:
Jan Lundberg ; Alf Bohlin ; Malin Syk
Utgivare:
Springer
Utgivningsdatum:
2011
Diarienummer:
TRV 2011/58769
ISSN:
0975-6809
Antal sidor:
6
Språk:
Engelska
Kontaktperson:
Per Olof Larsson Kråik, UHjbs
Trafikverket, Postadress: 781 89 Borlänge, Telefon: 0771-921 921