Application of coherent laser radar for bridge evaluation

Robert B. Clark; Phillip G. Gallman; Anthony R. Slotwinski

doi:10.1117/12.259143

13 November 1996 Application of coherent laser radar for bridge evaluation

Robert B. Clark, Phillip G. Gallman, Anthony R. Slotwinski

Proceedings Volume 2946, Nondestructive Evaluation of Bridges and Highways; (1996) https://doi.org/10.1117/12.259143
Event: Nondestructive Evaluation Techniques for Aging Infrastructure and Manufacturing, 1996, Scottsdale, AZ, United States

Abstract

The coherent laser radar bridge measurement system (CLBM) developed by Coleman Research Corporation provides unique non-contact capability to measure dead load contours, live load deflections, and modal frequencies. There data are vital for non-destructive evaluation of structures such as bridges. The CLBM is programmable to make these measurements at numerous predetermined points on the structure automatically. The CLBM makes its measurements at standoff distances up to 100 feet and no instrumentation needs to be mounted on the structure. This paper presents a summary of the system and compares field data obtained using the CLBM with similar data obtained using traditional contact displacement and accelerometer instrumentation.

Citation Download Citation

Robert B. Clark, Phillip G. Gallman, and Anthony R. Slotwinski "Application of coherent laser radar for bridge evaluation", Proc. SPIE 2946, Nondestructive Evaluation of Bridges and Highways, (13 November 1996); https://doi.org/10.1117/12.259143

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