Dansk Rumforskningsinstitut Byg din egen satellit - Space.aau.dk

Dansk Rumforskningsinstitut
Byg din egen satellit
6. Rummiljøet ....................................................................................................................38
6.1 Vacuum .......................................................................................................................38
6.2 Ultraviolet sollys .........................................................................................................38
6.3 Partikelstråling............................................................................................................38
6.4 Single Event Upset....................................................................................................40
7. Termisk design.............................................................................................................41
7.1 Varmestråling .............................................................................................................41
7.1.1 Indstråling............................................................................................................. 42
7.1.2 Udstråling............................................................................................................. 42
7.1.3 Varmebalance....................................................................................................... 43
7.1.4 Materialers overfladeegenskaber.......................................................................... 43
7.1.5 Regneeksempel #4 med temperaturligevægt........................................................ 44
7.1.6 Varmeisolation..................................................................................................... 44
7.1.7 Radiatorer............................................................................................................. 45
7.2 Heat Pipes. .................................................................................................................46
8. Struktur ..........................................................................................................................47
Rømer satellitten................................................................................................................47
Ørsted satellitten................................................................................................................48
8.3 Andre måder at lave struktur på..............................................................................49
9. Solceller og elforsyning.............................................................................................50
9.1 Solceller.......................................................................................................................50
9.2 Termisk design af solpaneler...................................................................................52
9.3 Det elektriske kraftforsyningssystem......................................................................53
9.4 Batterier.......................................................................................................................54
9.5 Effektbudget................................................................................................................56
10. Computer og databehandling om bord.................................................................57
10.1Overlevelsesevne ......................................................................................................59
11. Radiokommunikation.................................................................................................60
11.1Grundlæggende betragninger..................................................................................60
11.2Senderantenne...........................................................................................................60
11.3Modtagerantenne.......................................................................................................60
11.4Linkbudget...................................................................................................................61
11.4.1 dB-regning............................................................................................................ 62
11.4.2 Linkbudget én gang til.......................................................................................... 63
gen/dssp/mis/tn/0010(2) Side 4 Byg_din_egen_satellit_2_Draft_1.doc