| Autor: |
AUGUTIS, Stasys V., MURAVIN, Boris, VAŠTAKAS, Edgaras |
| Předmět: |
|
| Zdroj: |
Journal of Acoustic Emission; 2016, Vol. 33, pS1-S8, 8p |
| Abstrakt: |
This work presents new type of acoustic emission transducer (AET) calibration methods based on signal synthesis techniques, applied on different type and shape mechanical waveguides. Based on the results presented in this work a new type of AET calibration system was developed. The system consists of piezoelectric excitation transducer, arbitrary signal generator, and different type of waveguides, capacitive transducer, and data acquisition system and measurement software. Proposed system was calibrated with Polytech interferometer. Mechanical displacements obtained in waveguides were measured and visualized. Suggested equipment allowed calibration of AET from tens of kilohertz to several hundred kilohertz range. Acquired AET pulse and frequency response measurement examples with suggested equipment in bar type waveguides are presented in work. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
