Ultrasonic Measurements Research: Progress in 1988
Abstract
Progress is described on the design of a system for secondary calibration of acoustic emission transducers. Experimental secondary calibrations indicate that a 3.3 cm thick steel plate is not a suitable transfer block, and that the transfer block should be more like a semi-infinite medium. Simulated acoustic emission sources have been studied theoretically and experimentally. Hertzian impact experiments have been carried out, and source waveforms have been reconstructed from experimental data using an inverse Green's function for the plate. Moderate agreement was obtained between Hertzian theory and the experimental results. Ultrasonics, Physical acoustics, Acoustic emission, Transducers, Calibration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 29, 1988
- Accession Number
- ADA201133
Entities
People
- D. G. Eitzen
- F. R. Breckenridge
- N. N. Hsu
- S. E. Fick
- T. M. Proctor
Organizations
- National Institute of Standards and Technology