{"id":275,"date":"2011-01-26T10:48:22","date_gmt":"2011-01-26T10:48:22","guid":{"rendered":"http:\/\/hrefna.com\/kennslufr\/?p=275"},"modified":"2011-01-26T22:27:09","modified_gmt":"2011-01-26T22:27:09","slug":"um-raf602g","status":"publish","type":"post","link":"https:\/\/hrefna.com\/kennslufr\/um-raf602g\/","title":{"rendered":"Verkefni: Um n\u00e1mskei\u00f0i\u00f0 sem \u00e9g mun vinna me\u00f0 \u00ed KEN103F"},"content":{"rendered":"

L\u00fdsing \u00e1 n\u00e1mskei\u00f0i og r\u00f6k fyrir vali \u00feess<\/strong><\/p>\n

N\u00e1mskei\u00f0i\u00f0 sem \u00e9g hef vali\u00f0 a\u00f0 vinna me\u00f0 heitir “Loftnet og bylgju\u00fatbrei\u00f0sla<\/a><\/em>” og er n\u00famer RAF602G.<\/p>\n

L\u00fdsing n\u00e1mskei\u00f0isins skv. kennsluskr\u00e1 er: \u00a0“Rafsegulsvi\u00f0 og \u00fatgeisla\u00f0 afl einfaldra loftneta; \u00fatgeislunarvi\u00f0n\u00e1m sem m\u00e6likvar\u00f0i \u00e1 afli. A\u00f0rir grundvallareiginleikar, \u00fe.\u00e1 m. stefnueiginleikar; \u00fdmsar tegundir af einf\u00f6ldum loftnetum; tengingar vi\u00f0 loftnet; loftnetasamst\u00e6\u00f0ur; \u00e1hrif jar\u00f0ar \u00e1 \u00fatgeislun loftneta. Endurlindir og oploftnet: Segulstraumar, straumbrei\u00f0ur. Huygenslind, geislun fr\u00e1 opi. Loftnetssu\u00f0, geimsu\u00f0, hlutfall merkis og su\u00f0s. \u00datbrei\u00f0sla rafsegulbylgna; lei\u00f0artap; eiginleikar jar\u00f0vegs; endurkast fr\u00e1 j\u00f6r\u00f0u; jar\u00f0bylgjur; geimbylgjur; yfirbor\u00f0sbylgjur og framhalli \u00feeirra; \u00e1hrif jar\u00f0bungu; \u00e1hrif andr\u00famsloftsins. J\u00f3nhvolfs\u00fatbrei\u00f0sla: J\u00f3nhvolfi\u00f0, breytileiki \u00feess og deyfing, \u00fatbrei\u00f0sla \u00ed j\u00f3nu\u00f0um g\u00f6sum, val \u00e1 t\u00ed\u00f0ni. Geim\u00fatbrei\u00f0sla, fjarskipti um gervihnetti.<\/em>”<\/p>\n

N\u00e1mskei\u00f0i\u00f0 er 6-eininga, grunnn\u00e1ms-n\u00e1mskei\u00f0 til B.S. pr\u00f3fs \u00ed rafmagns-og t\u00f6lvuverkfr\u00e6\u00f0i.<\/p>\n

\u00c9g hef vali\u00f0 \u00feetta n\u00e1mskei\u00f0 \u00fev\u00ed \u00e9g er a\u00f0 kenna \u00fea\u00f0 \u00e1 \u00feessu misseri, og er \u00fev\u00ed me\u00f0 hugann vi\u00f0 \u00fea\u00f0 alla daga! \u00a0\u00c9g er algj\u00f6r byrjandi \u00ed kennslu, lauk doktorspr\u00f3fi \u00ed jan\u00faar 2010, og \u00feetta er fyrsta \u00e1ri\u00f0 mitt hj\u00e1 H\u00cd. \u00a0Eini k\u00farsinn sem \u00e9g hef kennt hinga\u00f0 til er “Fjarskiptaverkfr\u00e6\u00f0i 1<\/a>” sem \u00e9g kenndi fyrir \u00e1ram\u00f3t, og nota\u00f0i \u00fe\u00e1 s\u00f6mu b\u00f3k og var notu\u00f0 \u00e1rin tv\u00f6 \u00fear \u00e1 undan, en bj\u00f3 til m\u00edna eigin fyrirlestra og gl\u00e6rur.<\/p>\n

\u00c9g hef \u00fev\u00ed aldrei \u00e1\u00f0ur kennt n\u00e1mskei\u00f0i\u00f0 sem \u00e9g mun fjalla um \u00ed KEN103F. \u00a0N\u00e1mskei\u00f0i\u00f0 hefur veri\u00f0 kennt \u00ed einhverja \u00e1ratugi upp \u00far gl\u00f3sum fyrri kennara og lj\u00f3sritu\u00f0u efni \u00far gamalli b\u00f3k. \u00a0\u00c9g valdi \u00fe\u00e1 lei\u00f0 a\u00f0 velja n\u00fdja b\u00f3k (h\u00fan er reyndar \u00ed grunninn \u00e1ratuga g\u00f6mul, en grunnfr\u00e6\u00f0in hafa ekki breyst miki\u00f0), og er a\u00f0 semja n\u00fdja fyrirlestra og gl\u00e6rur upp \u00far henni, me\u00f0 hli\u00f0sj\u00f3n af \u00f6\u00f0rum kennslub\u00f3kum.<\/p>\n

Mig langar a\u00f0 f\u00e6ra n\u00e1msefni\u00f0 a\u00f0eins n\u00e6r “n\u00fat\u00edmanum” en \u00fea\u00f0 hefur veri\u00f0, en er \u00fe\u00f3 bundin af \u00fev\u00ed a\u00f0 \u00e9g ver\u00f0 a\u00f0 fara \u00ed grunn-fr\u00e6\u00f0in. \u00a0\u00c9g veit ekki hversu dj\u00fapt \u00e9g \u00e1 a\u00f0 fara \u00e1 kostna\u00f0 breiddar og \u00f6fugt.<\/p>\n

Sta\u00f0setning n\u00e1mskei\u00f0s \u00e1 fr\u00e6\u00f0asvi\u00f0i<\/strong><\/p>\n

“Loftnet og bylgju\u00fatbrei\u00f0sla” er kennd \u00e1 vormisseri \u00feri\u00f0ja \u00e1rs (\u00fea\u00f0 er s\u00ed\u00f0asta \u00e1ri\u00f0) \u00ed grunnn\u00e1mi rafmagns- og t\u00f6lvuverkfr\u00e6\u00f0inga. \u00a0N\u00e1mskei\u00f0i\u00f0 er skyldun\u00e1mskei\u00f0 \u00ed “rafmagnsverkfr\u00e6\u00f0i”-l\u00ednunni (hin l\u00ednan er “t\u00f6lvuverkfr\u00e6\u00f0i”).<\/p>\n

Eina forkrafan fyrir t\u00f6ku n\u00e1mskei\u00f0isins er a\u00f0 hafa kl\u00e1ra\u00f0 “Rafsegulfr\u00e6\u00f0i” (RAF402G), en \u00fear sem ford\u00e6mi eru fyrir \u00fev\u00ed a\u00f0 nemendur taki samt\u00edmis forkr\u00f6fuk\u00fars, og svo n\u00e6sta k\u00fars \u00fear \u00e1 eftir, \u00fe\u00e1 er \u00e9g me\u00f0 u.\u00fe.b. fj\u00f3ra nemendur (af 13) sem hafa ekki loki\u00f0 Rafsegulfr\u00e6\u00f0i.<\/p>\n

Saga n\u00e1mskei\u00f0s<\/strong><\/p>\n

N\u00e1mskei\u00f0i\u00f0 hefur veri\u00f0 kennt vi\u00f0 deildina um \u00e1rabil, ef ekki \u00e1ratugabil. \u00a0S\u00e1 sem kenndi n\u00e1mskei\u00f0i\u00f0 \u00e1 undan m\u00e9r kenndi \u00fea\u00f0 \u00ed 13 \u00e1r samfleytt, \u00e1\u00f0ur en hann f\u00f3r \u00e1 eftirlaun n\u00fana um \u00e1ram\u00f3tin. \u00a0Hann er mikill \u00e1hugama\u00f0ur um loftnet (er rad\u00ed\u00f3amat\u00f6r) og mikill viskubrunnur.<\/p>\n

Eftir \u00fev\u00ed sem \u00e9g best veit \u00fe\u00e1 er sjaldg\u00e6ft a\u00f0 loftnets-n\u00e1mskei\u00f0 s\u00e9u skyldun\u00e1mskei\u00f0 \u00ed grunnn\u00e1mi rafmagnsverkfr\u00e6\u00f0inga. \u00a0\u00c9g held a\u00f0 n\u00e1mskei\u00f0i\u00f0 s\u00e9 skyldun\u00e1mskei\u00f0 vi\u00f0 H\u00cd \u00fev\u00ed a\u00f0 \u00fea\u00f0 hafa \u00ed gegnum t\u00ed\u00f0ina veri\u00f0 starfandi menn vi\u00f0 deildina sem hafa veri\u00f0 mikilir \u00e1hugamenn um loftnet (\u00fea\u00f0 er rad\u00ed\u00f3amat\u00f6rar).<\/p>\n

Sj\u00e1lf er \u00e9g ekki rad\u00ed\u00f3amat\u00f6r, en \u00e9g hef hins vegar \u00a0fr\u00e6\u00f0ilegan \u00e1huga \u00e1 loftnetum og finnst \u00feau “k\u00fal”! \u00a0\u00dev\u00ed ber a\u00f0 b\u00e6ta vi\u00f0 a\u00f0 sj\u00e1lf t\u00f3k \u00e9g ekki \u00feetta n\u00e1mskei\u00f0 \u00feegar \u00e9g \u00ed n\u00e1mi vi\u00f0 H\u00cd (var \u00e1 “t\u00f6lvuverkfr\u00e6\u00f0i”-l\u00ednunni) en t\u00f3k svipa\u00f0 n\u00e1mskei\u00f0 \u00ed framhaldsn\u00e1minu fyrir 10 \u00e1rum s\u00ed\u00f0an (!!!).<\/p>\n

Hvers konar \u00feekking e\u00f0a leikni?<\/strong><\/p>\n

Eins og \u00e9g hef s\u00e9\u00f0 n\u00e1mskei\u00f0i\u00f0 fyrir m\u00e9r \u00fe\u00e1 eiga nemendurnir a\u00f0 f\u00e1 fr\u00e6\u00f0ilegan bakgrunn \u00ed \u00fev\u00ed hvernig loftnet virka, \u00e1hrif\u00a0mismunandi h\u00f6nnunar \u00e1 loftnet og hvernig \u00feau geisla, og hva\u00f0 “geislun” \u00fe\u00fd\u00f0ir. \u00a0\u00c9g vil l\u00edka a\u00f0 \u00feau f\u00e1i tilfinningu fyrir \u00fev\u00ed hvernig bylgjur fer\u00f0ast og brei\u00f0ast \u00fat, og hva\u00f0a \u00e1hrif \u00fe\u00e9ttb\u00fdli, o.s.frv. hefur \u00e1 bylgju\u00fatbrei\u00f0slu.<\/p>\n

\u00deau eiga a\u00f0 geta hanna\u00f0 loftnet (e\u00f0a amk skilja hva\u00f0a breytur \u00fearf a\u00f0 hafa \u00ed huga til a\u00f0 hanna loftnet), og tengt loftnet vi\u00f0 r\u00e1sir.<\/p>\n

Formleg h\u00e6fnisvi\u00f0mi\u00f0 eru:
\n“Eftir \u00feetta n\u00e1mskei\u00f0 skal nemandi<\/p>\n