- Tytuł:
- Prognosing the stability of permanent magnet by investigation of Barkhausen noise
- Autorzy:
- Pilot, M.
- Powiązania:
- https://bibliotekanauki.pl/articles/114385.pdf
- Data publikacji:
- 2017
- Wydawca:
- Stowarzyszenie Inżynierów i Techników Mechaników Polskich
- Tematy:
-
barkhausen noise
permanent magnet - Opis:
- A problem of measurement of Barkhausen noise coming from permanent magnet is investigated in the paper. This is important for correct conclusion when permanent magnet parameters are measured. Currently, Barkhausen noise is measured for soft magnetic materials for detecting material defects, for example, a microcracks and a tensions. A measurement of Barkhausen noise in permanent magnets may be useful for prognosing the stability of magnets working at duty cycles. Changes of working point of permanent magnet caused by cyclic external load can be examined in dedicated laboratory stand. In the paper first the measuring stand is presented, next the mathematical model of permanent magnet parameters is discussed and the measurement results are presented. They show that magnetoacoustic and electromagnetic phenomena are observed in the permanent magnet under test and their parameters may be measured.
- Źródło:
-
Measurement Automation Monitoring; 2017, 63, 7; 248-251
2450-2855 - Pojawia się w:
- Measurement Automation Monitoring
- Dostawca treści:
- Biblioteka Nauki