Calibration block and method for an ultrasonic system

Details Calibration block and method for an ultrasonic system Calibration block and method for an ultrasonic system

1992-03-20

1992-11-10

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Testing, monitoring, or calibrating

73 1DV, G01D 1800, G01B 1500

Patent

active

051630273

ABSTRACT:
An ultrasonic calibration block for standardizing an output of a pulse-echo ultrasonic inspection system is provided with an insonification surface for receiving ultrasonic pulses from the inspection system and a plurality of reflective interfaces stacked on top of one another and positioned at different distances from the insonification surface, each reflective interface having a different and characteristic reflectivity. A method of calibrating the output of the inspection system, using the calibration block, employs standard waveforms generated by insonifying the calibration block to generate a look-up table of standard waveform amplitudes related to a standardized output of the inspection system for a given material of a part to be inspected.

REFERENCES:
patent: 4903523 (1990-02-01), Flynn

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