P
Prabhu Rajagopal
Researcher at Indian Institute of Technology Madras
Publications - 151
Citations - 1599
Prabhu Rajagopal is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Ultrasonic sensor & Guided wave testing. The author has an hindex of 18, co-authored 129 publications receiving 1035 citations. Previous affiliations of Prabhu Rajagopal include Imperial College London & Indian Institutes of Technology.
Papers
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Proceedings ArticleDOI
Fiber Bragg grating-based detection of cross sectional irregularities in metallic pipes
TL;DR: In this article, the authors demonstrate a technique to monitor cross-sectional irregularities in pipes by detecting the feature-guided waves using fiber Bragg grating sensors, which is in good agreement with the results reported in elastic wave literature.
Proceedings ArticleDOI
Finite Element Based Hybrid Models for Ultrasonic Nde Using Commercial Packages
TL;DR: In this paper, the authors report work in progress towards achieving improved simulation tools for ultrasonic Nondestructive Evaluation (NDE) in the power generation industry, and present a domain-linking algorithm capable of stable performance in the near field.
Proceedings ArticleDOI
Rapid terahertz imaging for non-destructive evaluation applications using Schottky receivers and spatial adaptive sampling
Harikrishnan Brajesh Kaimal,Nirmala Devi,Nirmala Devi,Prabhu Rajagopal,Krishnan Balasubramaniam,Bala Pesala,Bala Pesala +6 more
TL;DR: In this article, a CW THz system with incoherent detection scheme using Schottky receiver along with spatial adaptive sampling technique is employed to achieve rapid THz imaging of Glass Fibre Reinforced Polymer (GFRP) composite with artificial defects.
Journal ArticleDOI
Numerical model and experimental validation for online monitoring of cold metal transfer joining of aluminium to galvanized steel
Nithin Puthiyaveettil,K. Renil Thomas,Sreedhar Unnikrishnakurup,K. V. Phani Prabhakar,G. Padmanabham,Prabhu Rajagopal,Krishnan Balasubramaniam +6 more
TL;DR: In this article, the effect of zinc coating on the weld brazability of dissimilar Al-steel joint made by the cold metal transfer (CMT) process using the passive infrared (IR) thermography sensing technique was investigated using a numerical model.
Application of Selected Fractal Geometry Resonators in Microstrip Strain Sensors
TL;DR: In this article , a combination of the Koch curve and the Sierpinski carpet was used to obtain the fractal geometry and miniaturize the sensor dimensions, which enabled the reduction of the patch size by 70% while reducing the sensitivity by 26%.