1301 Wild Rose Ln, Lake Forest, IL 60045 • 8474820226
1029 North Ave, Highland Park, IL 60035 • 8474323785
Evanston, IL
San Diego, CA
Pasadena, CA
Lane, IL
Name / Title
Company / Classification
Phones & Addresses
Sridhar Krishnaswamy President
MANTRA, INC
3436 Cricklewood St, Torrance, CA 90505
Sridhar Krishnaswamy Director
Northwestern University College/University · College / University
2145 Sheridan Rd, Evanston, IL 60208 8474913257, 8474913606
Sridhar Krishnaswamy Director
Northwestern University Dance Marathon Philanthropy · College/University · Geological Sciences · University · College / University · Amusement/Recreation Services · History Dept · Library
1999 Campus Dr BOX 50, Evanston, IL 60208 2169 Campus Dr, Evanston, IL 60208 1850 Campus Dr, Evanston, IL 60208 2006 Sheridan Rd, Evanston, IL 60208 8474913741, 8474915349, 8474913974, 8474915729
Indian Institute of Science Sep 2015 - Mar 2016
Academic Visitor
Tuterra Corporation Sep 2015 - Mar 2016
Founder
Northwestern University Sep 2015 - Mar 2016
Director, Center For Quality Engineering and Failure Prevention
Northwestern University Sep 2015 - Mar 2016
Professor of Mechanical Engineering
Northwestern University Sep 1996 - Aug 2001
Associate Professor
Education:
Caltech 1984 - 1989
Doctorates, Doctor of Philosophy, Philosophy
Caltech 1983 - 1984
Master of Science, Masters
Indian Institute of Technology, Madras 1978 - 1983
Bachelors, Bachelor of Technology
Madras Christian College 1977 - 1978
St. Mary's High School, Madras 1972 - 1976
St. Mary's High School, Madras 1973 - 1976
St. Germain High School, Bangalore 1968 - 1972
Bruno F. Pouet - Evanston IL Tom C. Chatters - Chicago IL Sridhar Krishnaswamy - Evanston IL
Assignee:
Northwestern University - Evanston IL
International Classification:
G01B 902
US Classification:
356 355
Abstract:
A video camera records a series of interferometric images of a test object, while the object is subjected to a repeated and varying level of stress. At least one pair of interferometric images, taken during the same video frame, and corresponding to different levels of stress, are added together, in an analog manner, to form a composite image which is then stored in digital form. During the next video frame, the phase of the light used to generate the interferometric image is altered, and the process is repeated. The digitally-stored composite images obtained during two successive video frames are subtracted from each other to produce a second-order composite image which reveals information about the condition of the object. The second-order composite image includes fringes of high contrast, and is not adversely affected by most ambient noise.
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