Automated gain control in rail flaw detection

Details Automated gain control in rail flaw detection Automated gain control in rail flaw detection

1979-02-21

1980-06-03

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73615, G01N 2904

Patent

active

042055539

ABSTRACT:
Automated gain control in rail flaw detection which includes attenuation of echoes from rails pulsed with a burst of sonic energy, comparing said attenuated signals over discrete intervals, and reducing or increasing said attenuation in response thereto to develop a uniform signal from which an evaluation of flaw indicating echoes can be obtained.

REFERENCES:
patent: 4004455 (1977-01-01), McKee et al.
patent: 4137776 (1979-02-01), Rudis et al.

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