Hardware-Based Parameter Extraction of Acoustic Emission Burst Signal for Structural Health Monitoring Applications

ABSTRACT

Acoustic Emission (AE) is sensitive to micro-mechanisms of deformation and fracture processes and can give indication prior to failure of a material. The parameters of the AE burst signals are correlated to the micro mechanics of damage and hence desired to be extracted in real-time. This paper proposes a hardware-based approach for extraction of AE signal parameters such as peak amplitude, RMS, AE count, event duration, and rise time, which reduces processing load of the microcontroller and signal processing time significantly. Multisim software is used for simulation of the hardware design and the results are presented in this paper.

KEYWORDS:

• Acoustic emission burst signal
• Non-destructive testing
• Piezoelectric transducer
• Rise time
• SHM
• Signal parameter

ACKNOWLEDGEMENTS

Authors are thankful to Dr A. K. Bhaduri, Director, IGCAR, Kalpakkam for support. Authors thank Mr T. K. Haneef, Scientific Officer, Non Destructive Evaluation Division (NDED), IGCAR, for help. Authors also thank Mr V. Arjun and Dr W. Sharatchandra Singh, Scientific Officers, NDED, IGCAR for their help.

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Chandan K. Bhagat

Chandan Kumar Bhagat, a BTech in electronics & communication engineering, is currently pursuing PhD in engineering sciences at HBNI, Kalpakkam. His research is focused on development of acoustic emission sensor system for structure health monitoring in real-time applications.

E-mail: [email protected]

Nilangshu K. Das

Nilangshu K Das has been working as a scientific officer at IGCAR, Kalpakkam, India. He worked in the field of nano-magnetism and irradiation facilities of reactor grade materials. His major area of research involves the development of nondestructive test instrumentation.

E-mail: [email protected]

C. K. Mukhopadhyay

C K Mukhopadhyay is currently heading the Electromagnetic Measurements and Structural Integrity Section of NDE Division, IGCAR, Kalpakkam, India. He is specialized in the areas of NDE of metallic materials for the detection and characterization of defects and microstructure, and study of deformation, fatigue, and fracture behavior.

Corresponding author. E-mail: [email protected]

B. Purna Chandra Rao

B Purna Chandra Rao is currently heading the NDE Division, Metallurgy and Material Group, IGCAR, Kalpakkam, India. He is specialized in NDE of metallic materials for the detection and quantitative characterization of defects, stresses, and microstructures.

E-mail: [email protected]