The paper presents the results of research on the development, manufacture, calibration and testing of acoustic emission (AE) system for non-destructive control and monitoring of the states of concrete structures of hydrotechnical structures. AE system contains four AE piezoelectric sensors, a processing unit, consisting of industrial computer, module of counters SCHM-16, software for collection and processing of AE data, keyboard and monitor. The piezoelectric detector of the AE system was calibrated in a frequency bands from 45 kHz to 75 kHz and from 95 kHz to 125 kHz according to the obtained AE spectrum of defect formation in a sample of monocrystalline silicon gamma-irradiated by ionizing radiation source 60Со with dose of ≥1·108 Rad. Laboratory tests of acoustic emission systems on concrete stands was conducted and the AE spectra of cracking were obtained. Using the AE system the threedimensional coordinates x, y, z of developing cracks in concrete blocks are determined.
| Mualliflar | Ашрапов, У.Т., Садиков, И.И., Махкамов, Ш.М., Мирзаев, Б.Б., Естифеева, А.Г. |
|---|---|
| Jurnal | O‘zbekiston fizika jurnali |
| Nashr sanasi | 2021-12-27 |
| Jild | 23 |
| Son | 3 |
| Betlar | 83-88 |
| Til | Rus |
| DOI | 10.52304/.v23i3.270 |
DOI: 10.52304/.v23i3.270 · Maqolaning asl sahifasi
АЭ спектр, трещина, бетонный стенд, блок анализа данных, системный блок, пьезодатчик, AE spectrum, crack, concrete stand, data analysis unit, system unit, piezosensor
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