ASTM-E2534 › Standard Practice for Process Compensated Resonance Testing Via Swept Sine Input for Metallic and Non-Metallic Parts
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1.1 This practice describes a general procedure for using the process compensated resonance testing (PCRT) via swept sine input method to detect resonance pattern differences in metallic and non-metallic parts. The resonance differences can be used to distinguish acceptable parts with normal process variation from parts with material states and defects that will cause performance deficiencies. These material states and defects include, but are not limited to, cracks, voids, porosity, shrink, inclusions, discontinuities, grain and crystalline structure differences, density-related anomalies, heat treatment variations, material elastic property differences, residual stress, and dimensional variations. This practice is intended for use with instruments capable of exciting, measuring, recording, and analyzing multiple whole body, mechanical vibration resonance frequencies in acoustic or ultrasonic frequency ranges, or both.
1.2 This practice uses inch pound units as primary units. SI units are included in parentheses for reference only, and are mathematical conversions of the primary units.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
damage identification; elastic properties; feature extraction; nondestructive examination; nondestructive inspection; process compensated resonant examination; process compensated resonant testing; production variation; quality control; resonance inspection; resonances; resonant frequency; resonant mode; resonant ultrasound spectroscopy; system health monitoring; vibration characteristics;; ICS Number Code 17.160 (Vibrations, shock and vibration measurement)
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17.160 (Vibrations, shock and vibration measurements Including measuring instruments and installations Vibration and shock with respect to human beings, see 13.160 Balancing and balancing machines, see 21.120.40 Vibration protection of buildings, see 91.120.25)
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Jan. 1, 2016