Szczegóły publikacji
Opis bibliograficzny
Piezoelectric self-excited system in mining roof anchor stress change measurement / KWAŚNIEWSKI Janusz, DOMINIK Ireneusz, LALIK Krzysztof // Key Engineering Materials ; ISSN 1013-9826. — 2014 — vol. 605, s. 392–395. — Bibliogr. s. 395, Abstr. — W bazie Web of Science dod. ISBN: 978-3-03835-051-4. — Materials and applications for sensors and transducers III
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 86291 |
|---|---|
| Data dodania do BaDAP | 2014-12-12 |
| Tekst źródłowy | URL |
| DOI | 10.4028/www.scientific.net/KEM.605.392 |
| Rok publikacji | 2014 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Key Engineering Materials |
Abstract
The paper presents the application of a new type of a measurement system called Self-excited Acoustical System (SAS). It was applied for stress change monitoring of anchors which are used to secure roofs and walls in mines and in hollowed tunnels. The knowledge about the state of anchors can indirectly indicate the state of rock masses which is crucial for mining safety. One of the main problems so far has been reliable sensor mounting, especially in difficult mining conditions. The SAS system overcomes this problem because it can be mounted easily at the anchor's end or even on the anchor's flange. The laboratory tests were conducted on a hydraulic tensile testing machine. The mining roof anchor was placed in the machine and then stretched. The changes of the resonance frequency caused by the increase of the tensile strength were observed during the research.
