Parametric study on resolution achieved using FMC-TFM-based phased array ultrasonic imaging

Sumana, Anish Kumar

Research output: Chapter in Book/Report/Conference proceedingConference contribution book


Full Matrix Capture-Total Focusing Method (FMC-TFM) is an advanced mode offered by phased array technology for defect detection and characterization. Imaging using the FMC-TFM provides simultaneous focusing at all the depths and also offers various modes of imaging by post-processing the same acquired data. In FMC, each element acts as a transmitter, and all elements act as receivers. The TFM involves the extraction of the maximum amount of possible information from the specimen. The present work aims to study the influence of various parameters such as aperture size, frequency, and depth of the defects on resolution achieved using the FMC-TFM technique. The experimental results of FMC-TFM have been compared with those of Synthetic Focusing using Linear Array (SFLA) technique, which is similar to the conventional Synthetic Aperture Focusing Technique (SAFT) in which a single element is utilized for both transmission and reception. The study revealed that the lateral resolution decreases with increase in the defect depth, decrease in the wave frequency, and decrease in the aperture size.
Original languageEnglish
Title of host publicationAdvances in Non-destructive Evaluation - Proceedings of NDE 2019
Subtitle of host publicationProceedings of NDE 2019
EditorsC. K. Mukhopadhyay, Ravibabu Mulaveesala
Place of PublicationCham, Switzerland
Number of pages11
ISBN (Electronic)9789811601866
ISBN (Print)9789811601859
Publication statusPublished - 29 Jun 2021
EventConference on Non-Destructive Evaluation 2019 - Bangalore , India
Duration: 5 Dec 20197 Dec 2019


ConferenceConference on Non-Destructive Evaluation 2019
Abbreviated titleNDE 2019


  • phased array
  • SAFT


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