Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/6076Registo completo
| Campo DC | Valor | Idioma |
|---|---|---|
| dc.contributor.author | Pedrosa, Delfim Duarte Rolo | - |
| dc.contributor.author | Teixeira, Patrício | - |
| dc.contributor.author | Esteves, João Sena | - |
| dc.date.accessioned | 2007-01-24T11:46:41Z | - |
| dc.date.available | 2007-01-24T11:46:41Z | - |
| dc.date.issued | 2006-09 | - |
| dc.identifier.citation | INTERNATIONAL CONFERENCE ON HANDS ON SCIENCE, 3, Braga, Portugal, 2006 - “International Conference on Hands on Science”. [S.l. : s.n., 2006]. ISBN 989-9509-50-7. p. 194-200. | eng |
| dc.identifier.isbn | 989-9509-50-7 | - |
| dc.identifier.uri | https://hdl.handle.net/1822/6076 | - |
| dc.description.abstract | This paper presents an electromagnet and a switchboard used on a science fair slewing crane described in a separate paper. The electromagnet can lift 50kg loads. The switchboard includes a transformer that powers the electromagnet. It also contains relays, contactors and inverters that allow the operation of the crane three-phase motors using a single-phase power supply. Crane slewing is limited to an 180º angle, for safety reasons. Pressing an emergency button switches off all command circuits. An 8051 microcontroller-based system determines the vertical position of the electromagnet, which cannot be switched off while being on a high position, not even if the emergency button is pressed. | eng |
| dc.language.iso | eng | eng |
| dc.rights | openAccess | eng |
| dc.subject | Electromagnet | eng |
| dc.subject | Switchboard | eng |
| dc.subject | Contactor | eng |
| dc.subject | Inverter | eng |
| dc.subject | 8051 microcontroller | eng |
| dc.title | Electromagnet and switchboard for slewing crane | eng |
| dc.type | conferencePaper | eng |
| dc.peerreviewed | yes | eng |
| Aparece nas coleções: | DEI - Artigos em atas de congressos internacionais | |
