Recent progresses in radar techniques and systems have favoured the development of microwave interferometers, suitable to the non-contact measurement of vibrations on large structures. The main characteristic of the new radar systems is the possibility of simultaneously measuring the static or dynamic deflection of several points on a large structure with high accuracy. The objectives of the paper are: (a) to describe the main radar techniques (i.e. high resolution radar waveforms and phase interferometry) adopted in the radar-based measurement of deflections, in order to highlight advantages and potential issues of the new technology; (b) to illustrate the application of microwave remote sensing in static and dynamic testing of full-scale bridges and in the measurement of the vibration response of structural elements very difficult to access by using conventional techniques, such as stay cables.

Microwave remote sensing of bridges and large structures: advantages, limitations and possible applications

GENTILE, CARMELO
2009

Abstract

Recent progresses in radar techniques and systems have favoured the development of microwave interferometers, suitable to the non-contact measurement of vibrations on large structures. The main characteristic of the new radar systems is the possibility of simultaneously measuring the static or dynamic deflection of several points on a large structure with high accuracy. The objectives of the paper are: (a) to describe the main radar techniques (i.e. high resolution radar waveforms and phase interferometry) adopted in the radar-based measurement of deflections, in order to highlight advantages and potential issues of the new technology; (b) to illustrate the application of microwave remote sensing in static and dynamic testing of full-scale bridges and in the measurement of the vibration response of structural elements very difficult to access by using conventional techniques, such as stay cables.
Proceedings of the Final Workshop "DETAILS"
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/560110
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