Method of acoustic emission

The results of synchronous detection of the emission of various components of the electromagnetic and acoustic fields obtained under conditions of low industrial interference and a high level of microseismicity are investigated. To compensate electromagnetic radiation of lithospheric origin, a compensation method was used.

6p vipagani 24-10-2022 4 3   Download

This article provides a method of acoustic emission (AE) technique to detect leakage in pipeline and locate the position of the leakage. The AE sensor is made of piezoelectric effect transducer to pick up the acoustic emission signal which is generated from the turbulent flow at the leak position.

8p tohitohi 19-05-2020 10 0   Download

This paper provides a method of acoustic emission (AE) technique to detect a train bearing fault of tapered bearing unit (TBU). An approach is to utilize acoustic emission signals which were captured from piezoelectric transducer and processed using Fourier transform.

6p tohitohi 19-05-2020 14 1   Download

This project proposes acoustic emission (AE) technique for control valve fault detection. This paper discusses two methods used for data collection. Data acquisition system (DAQ) was used for retrieving data in time domain while spectrum analyzer was used for frequency domain data.

5p praishy2 27-02-2019 20 1   Download

Acoustic emission (AE) is a phenomenon in which elastic or stress waves are emitted from rapid, localized change of strain energy in material. The practical application of the AE first emerged in the 1950's, but only in the last 20 years the science, technology and applications of AE have progressed significantly.

230p lyly_5 22-03-2013 63 8   Download

Scientists and engineers for decades searched to utilize magnesium, known of its low density, for light-weighting in many industrial sectors. This book provides a broad review of recent global developments in theory and practice of modern magnesium alloys. It covers fundamental aspects of alloy strengthening, recrystallization, details of microstructure and a unique role of grain refinement.

204p cucdai_1 22-10-2012 55 9   Download

The Nondestructive testing science is a broad field that covers variety of testing methods and applications, in addition to the associated pre and post processing mathematics. In terms of methods and techniques the Nondestructive testing modalities rely on different physical phenomena such as the electromagnetism, the acoustic emission, the thermal emission and the penetration of high-energy radiation through materials and structures.

264p qsczaxewd 25-09-2012 86 16   Download

Sound emission (AE) is one of the most important test non-destructive (NDT) methods of materials, construction and machinery. The sound emission method with most other technical non-destructive testing in two important respects. first of all, the signal source is always located inside the investigated materials / structures. The second important thing is the NDT method to detect geometrical discontinuities, while emission sound motion detection errors.

408p lulanphuong 27-03-2012 79 12   Download