National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Signal Filtration for Detecting Electromagetic Emission
Podshivalov, Aleksandr
There are many methods to describe and study geological processes. This paper deals with a data measured by a loop antenna in a dripstone cave. The measuring system, the sequence of the experiment, and result of signal filtering and spectral analysis were described. Several artificial noise sources in different frequency of signal spectrum bands were found. Signal filtering was carried out. On the basis of the filtered signal central moments during a few days were calculated.
A comparison of different types of probes for detecting electromanetic emission
Podshivalov, A.
This paper deals with a comparison of different types of probes for detecting electromagnetic emission (EME). The matter of investigation is EME from a model which generates cracks of samples under load. This article provides a description of probes for EME measurement signals. The novelty of the approach lies in the fact that the physical model was used instead of real samples under uniaxial load of composite materials. The author also describes the experiment conducted for obtaining signals and analyses the digitized signals as waveforms and spectra. Appropriate conclusions were made according to the comparative analysis.

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1 Podshivalov, Aleksandr
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