About Monitoring of the Medium State by the Parameters of the Surface Wave

A method of low-frequency continuous monitoring of the stress-strain state of the construction is proposed, based on the analysis of the parameters of the surface wave field created by the shock effect, through the use of acceleration sensors (accelerometers) and ferroelectric strain sensors. The latter are made using thin-film technology and are ultra-miniature broadband dynamic strain sensors of the generator type. The possibilities of using sensors in stress state monitoring systems are discussed. To process the recorded signal, a special method is used based on the use of optimal orthogonal decompositions of the signal in the basis, adaptively tuned on the training sample. A series of experiments have been carried out to demonstrate the high efficiency of the method.