Satish Udpa

University Distinguished Professor Michigan State University

  • East Lansing MI

Satish Udpa's research interests span the broad area of materials characterization and nondestructive evaluation (NDE).

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Biography

Satish Udpa is a University Distinguished Professor of Electrical and Computer Engineering, former Acting President of Michigan State University, and former Dean of the College of Engineering and a former Chair of the Department of Electrical and Computer Engineering. His research interests span the broad area of materials characterization and nondestructive evaluation (NDE). His work includes an extensive repertoire of forward models for simulating physical processes underlying several inspection techniques. Coupled with careful experimental work, such forward models can be used for designing new sensors, optimizing test conditions, estimating the probability of detection, assessing designs for inspectability and training inverse models for characterizing defects. His expertise includes the development and design of novel transducers. Professor Udpa is currently serving as the Interim Director of Mobility and has an appointment in MSU's Ecology, Evolution and Behavior Program.

Industry Expertise

Education/Learning
Events Services

Areas of Expertise

Non-destructive Testing
Materials

Education

Colorado State University

Ph.D.

Electrical Engineering

1983

Colorado State University

M.S.

Electrical Engineering

1980

J.N.T. University

B.S.

Electrical Engineering

1975

Affiliations

  • Fellow, Institute of Electrical and Electronic Engineers, American Society for Nondestructive Testing (ASNT) and the Indian Society of Nondestructive Testing
  • Editor, ASNT Electromagnetic NDE Methods Handbook
  • Editor, IEEE Transactions on Magnetics (2007-2017) and the International Journal of Applied Electomagnetics (2011-2020)
  • Fellow, U.S. National Academy of Inventors

News

Satish Udpa is MSU's new interim president: 6 things to know about him

Detroit Free Press  online

2019-01-17

The Michigan State University board Thursday named Satish Udpa to be the new interim president, replacing John Engler, who was forced out.

Many trustees said Udpa brings integrity back to the position.

Here's what we know about Udpa, 68:

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Journal Articles

Frequency Domain Analysis of Magnetic Field Images Obtained using TMR Array Sensors for Subsurface Defect Detection and Quantification

NDT & E International

2020

Quantitative characterization of subsurface defects is a challenging problem in eddy current testing (ECT), not only due to the limitation of the penetration depth of eddy currents, but also due to the ill-posed nature of the inverse problem associated with quantifying a defect's 3D dimensions and its location in the test sample from measurements made on the sample surface. This paper presents a new ECT method for subsurface defect detection and quantification. Eddy currents with continuously varying frequency in a selected frequency band is induced in the conductive sample by using a chirp modulated excitation scheme. The frequency band of the chirp waveform is chosen so that the penetration depth of eddy current in the selected frequency band covers the thickness of the sample under test.

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Enhancement of Microwave Time Reversal Imaging using Metallic Reflectors

Nondestructive Testing and Evaluation

2020

There is a growing interest in the use of composites in several industries such as aerospace, automotive and civil infrastructure due to their unique properties such as light-weight, corrosion resistance and excellent thermo-mechanical properties. However, it is critical to ensure that no defects, such as disbonds, voids and delaminations are introduced during fabrication or during service. A variety of nondestructive evaluation (NDE) techniques have been proposed and developed to detect such defects that can compromise the integrity of these structures. Microwave NDE techniques are well suited for inspection of dielectric materials such as composites because of the ability of electromagnetic waves to interact with these materials.

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A Time Reversal-Based Microwave Imaging System for Detection of Breast Tumors

IEEE Transactions on Microwave Theory and Techniques

2020

Time reversal (TR) relies on the reciprocity nature of the wave equation. Waves diverging away from a source can be time reversed and back-propagated to focus back at the source. The transmitting and receiving antenna arrays utilized for TR are collectively termed as the TR mirror (TRM). TR imaging in the microwave regime has shown its promise in nondestructive inspection and target localization. This paper deals with the design of a microwave TRM for the detection of breast tumors. The first part of this paper discusses TR simulations based on a signal processing algorithm, to obtain the tumor location from the total fields. The processed time-reversed fields can be back-propagated in a numerical model to focus the wave at the tumor locations.

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