{"id":1400,"date":"2026-06-29T03:31:32","date_gmt":"2026-06-29T03:31:32","guid":{"rendered":"https:\/\/worm-and-worm-wheel.com\/?p=1400"},"modified":"2026-06-29T03:31:32","modified_gmt":"2026-06-29T03:31:32","slug":"worm-and-worm-wheel-for-antenna-positioner-and-satellite-dish-drives","status":"publish","type":"post","link":"https:\/\/worm-and-worm-wheel.com\/tr\/worm-and-worm-wheel-for-antenna-positioner-and-satellite-dish-drives\/","title":{"rendered":"Anten Konumland\u0131r\u0131c\u0131 ve Uydu \u00c7anak Tahrik Sistemleri i\u00e7in Sonsuz Di\u015fli ve Sonsuz Di\u015fli \u00c7ark\u0131"},"content":{"rendered":"
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Kore Ever-Power \u00b7 Uygulama M\u00fchendisli\u011fi K\u0131lavuzu<\/p>\n

Anten Konumland\u0131r\u0131c\u0131 ve Uydu \u00c7anak Tahrik Sistemleri i\u00e7in Sonsuz Di\u015fli ve Sonsuz Di\u015fli \u00c7ark\u0131<\/h1>\n

1,2 metrelik \u00e7anak antene sahip bir Ka-band yer istasyonunun \u0131\u015f\u0131n geni\u015fli\u011fi 0,6 derecedir. Uydu, jeostasyonel y\u00f6r\u00fcngede 36.000 km uzakta bulunmaktad\u0131r. Anten azimut eksenini tahrik eden sonsuz di\u015fli \u00e7iftinde 4 ark dakika bo\u015fluk varsa, y\u00f6nlendirme hatas\u0131 \u0131\u015f\u0131n geni\u015fli\u011finin 'ini t\u00fcketir; bu da sinyali 0,5 dB d\u00fc\u015f\u00fcr\u00fcr ve ba\u011flant\u0131y\u0131 minimum ta\u015f\u0131y\u0131c\u0131-g\u00fcr\u00fclt\u00fc e\u015fi\u011finin alt\u0131na d\u00fc\u015f\u00fcrebilir. Ka-band frekanslar\u0131nda, sonsuz di\u015fli \u00e7ifti bo\u015flu\u011fu sadece mekanik bir \u00f6zellik de\u011fil, ayn\u0131 zamanda bir ileti\u015fim parametresidir.<\/p>\n

Anten s\u00fcr\u00fcc\u00fc m\u00fchendisiyle g\u00f6r\u00fc\u015f\u00fcn \u2192<\/a><\/p>\n<\/div>\n

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H\u0131zl\u0131 Cevap<\/div>\n

Anten konumland\u0131r\u0131c\u0131lar ve uydu \u00e7anak takip sistemleri, azimut (yatay) ve y\u00fckseklik (dikey) eksen tahrikleri i\u00e7in sonsuz di\u015fli \u00e7iftleri kullan\u0131r; \u00e7\u00fcnk\u00fc kendili\u011finden kilitlenme, motor g\u00fcc\u00fcne ihtiya\u00e7 duymadan antenin y\u00f6nlendirme a\u00e7\u0131s\u0131n\u0131 r\u00fczgara kar\u015f\u0131 korur, y\u00fcksek oran kompakt bir motordan ince a\u00e7\u0131sal \u00e7\u00f6z\u00fcn\u00fcrl\u00fck sa\u011flar ve 90 derecelik geometri kaide yap\u0131s\u0131na uyar. Y\u00f6nlendirme do\u011frulu\u011fu b\u00fct\u00e7e tablosu, frekans band\u0131n\u0131 (C, Ku, Ka) ve \u00e7anak \u00e7ap\u0131n\u0131 \u0131\u015f\u0131n geni\u015fli\u011fine, izin verilen maksimum y\u00f6nlendirme hatas\u0131na ve dolay\u0131s\u0131yla maksimum sonsuz di\u015fli \u00e7ifti bo\u015flu\u011funa e\u015fler; bu da C band\u0131 sistemlerinin 6 ila 10 yay dakikas\u0131 bo\u015flu\u011fa tolerans g\u00f6sterdi\u011fini, Ka band\u0131 sistemlerinin ise 2 yay dakikas\u0131n\u0131n alt\u0131nda bir bo\u015fluk gerektirdi\u011fini ortaya koymaktad\u0131r. Denizcilikte kullan\u0131lan stabilize antenler, y\u0131lda 5 ila 15 milyon konumland\u0131rma d\u00f6ng\u00fcs\u00fc \u00fcreten s\u00fcrekli takip g\u00f6revi (geminin yalpa, e\u011fim ve sapmas\u0131n\u0131 d\u00fczeltir) ekler; bu, karada kullan\u0131lan sabit noktal\u0131 antenlerin yar\u0131 statik g\u00f6revinden ziyade, r\u00fczgar t\u00fcrbini sapma tahriklerine (Madde A35) benzer bir yorulma y\u00fckleme rejimidir.<\/p>\n<\/div>\n

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Anten konumland\u0131r\u0131c\u0131lar neden sonsuz di\u015fli tahrik sistemleri kullan\u0131r?<\/h2>\n
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Anten konumland\u0131r\u0131c\u0131, anten \u0131\u015f\u0131n\u0131n\u0131 bir uyduya veya ileti\u015fim hedefine y\u00f6nlendirmek i\u00e7in \u00e7ana\u011f\u0131 azimut (0 ila 360 derece yatay) ve y\u00fckseklik (0 ila 90 derece dikey) y\u00f6n\u00fcnde d\u00f6nd\u00fcr\u00fcr. Jeostasyonel uydular i\u00e7in anten bir kez y\u00f6nlendirilir ve sabit kal\u0131r; sonsuz di\u015fli \u00e7ifti hassas bir konumland\u0131r\u0131c\u0131 ve r\u00fczgara dayan\u0131kl\u0131 bir kilit g\u00f6revi g\u00f6r\u00fcr. Al\u00e7ak D\u00fcnya Y\u00f6r\u00fcngesi (LEO) uydular\u0131 i\u00e7in anten, uydu 5 ila 15 dakika i\u00e7inde g\u00f6ky\u00fcz\u00fcn\u00fc ge\u00e7erken s\u00fcrekli olarak izleme yapar; sonsuz di\u015fli \u00e7ifti de\u011fi\u015fken h\u0131zda \u00e7al\u0131\u015fan hassas bir servo akt\u00fcat\u00f6rd\u00fcr.<\/p>\n

Her iki mod da ayn\u0131 \u00fc\u00e7 sonsuz di\u015fli \u00e7ifti \u00f6zelli\u011fini gerektirir: hassas a\u00e7\u0131sal konumland\u0131rma (y\u00fcksek frekans bantlar\u0131 i\u00e7in yay saniyesi seviyesinde), \u00e7anak y\u00fczeyindeki r\u00fczgar y\u00fck\u00fcne kar\u015f\u0131 kendili\u011finden kilitlenme ve kompakt kaide entegrasyonu.<\/p>\n<\/div>\n

\"Uydu<\/div>\n<\/div>\n
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Yay saniyesi konumland\u0131rma<\/div>\n

Servo kodlay\u0131c\u0131ya sahip 360:1 oranl\u0131 bir sonsuz di\u015fli \u00e7ifti, kodlay\u0131c\u0131 say\u0131m\u0131 ba\u015f\u0131na 1 yay saniyesinin alt\u0131nda a\u00e7\u0131sal \u00e7\u00f6z\u00fcn\u00fcrl\u00fck sa\u011flar; bu da \u0131\u015f\u0131n geni\u015fli\u011finin 0,4 ila 0,8 derece oldu\u011fu 40 GHz'de Ka band\u0131 izleme i\u00e7in yeterlidir. Y\u00fcksek oran, motor d\u00f6n\u00fc\u015f\u00fcn\u00fc, do\u011frudan tahrikli motorlar\u0131n ayn\u0131 maliyetle sa\u011flayamayaca\u011f\u0131 ince a\u00e7\u0131sal art\u0131\u015flara d\u00f6n\u00fc\u015ft\u00fcr\u00fcr.<\/p>\n<\/div>\n

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R\u00fczgar y\u00fck\u00fcne kar\u015f\u0131 kendili\u011finden kilitlenen<\/div>\n

30 m\/s h\u0131z\u0131ndaki r\u00fczgarda 3,7 metrelik bir \u00e7anak anten yakla\u015f\u0131k 4.000 N'luk bir itme kuvveti \u00fcretir; bu da azimut ekseninde 2.000 ila 3.000 N\u00b7m aras\u0131nda tork olu\u015fturur. Kendili\u011finden kilitlenen mekanizma, motor g\u00fcc\u00fcne ihtiya\u00e7 duymadan \u00e7anak anteni bu y\u00fcke kar\u015f\u0131 sabit tutar; bu da elektrik kesintilerinin ya\u015fanabilece\u011fi g\u00f6zetimsiz uzak b\u00f6lgeler i\u00e7in \u00e7ok \u00f6nemlidir.<\/p>\n<\/div>\n

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Kaide entegrasyonu<\/div>\n

90 derecelik sonsuz di\u015fli d\u00fczeni, motoru kaide borusunun i\u00e7ine yerle\u015ftirirken, \u00e7\u0131k\u0131\u015f azimut veya y\u00fckseklik ayar di\u015flisini \u00e7al\u0131\u015ft\u0131r\u0131r; bu da motorun anten a\u00e7\u0131kl\u0131\u011f\u0131n\u0131n d\u0131\u015f\u0131nda kalmas\u0131n\u0131 sa\u011flar (bu da RF sinyalini engelleyecektir). Ba\u015fka hi\u00e7bir di\u015fli tipi, kaide zarf\u0131 i\u00e7inde dik eksen d\u00f6n\u00fc\u015f\u00fcm\u00fcn\u00fc sa\u011flayamaz.<\/p>\n<\/div>\n<\/div>\n


\n\"Uydu<\/p>\n

Hedefleme do\u011frulu\u011fu b\u00fct\u00e7esi \u2014 frekans band\u0131 ve \u00e7anak boyutu ile sonsuz di\u015fli \u00e7ifti bo\u015fluk limiti<\/h2>\n

Anten \u0131\u015f\u0131n geni\u015fli\u011fi, antenin ne kadar hassas bir \u015fekilde y\u00f6nlendirilmesi gerekti\u011fini ve dolay\u0131s\u0131yla sonsuz di\u015fli \u00e7iftinin ne kadar bo\u015flu\u011fa sahip olabilece\u011fini belirler. I\u015f\u0131n geni\u015fli\u011fi, hem frekans hem de \u00e7anak \u00e7ap\u0131yla ters orant\u0131l\u0131d\u0131r: daha y\u00fcksek frekans ve daha b\u00fcy\u00fck \u00e7anak, daha dar bir \u0131\u015f\u0131n \u00fcretir ve bu da daha hassas bir y\u00f6nlendirme gerektirir. Y\u00f6nlendirme hassasiyeti b\u00fct\u00e7esi, \u0131\u015f\u0131n geni\u015fli\u011finin bir k\u0131sm\u0131n\u0131 (tipik olarak ila ) sonsuz di\u015fli \u00e7iftinin bo\u015flu\u011funa ay\u0131r\u0131r; kalan b\u00fct\u00e7e ise yap\u0131sal sapma, termal genle\u015fme ve r\u00fczgar kaynakl\u0131 esneme i\u00e7in saklan\u0131r.<\/p>\n

\n\n\n\n\n\n\n\n\n
Bant \/ frekans<\/th>\n\u00c7anak \u00e7ap\u0131 1,2 m<\/th>\n\u00c7anak \u00e7ap\u0131 2,4 m<\/th>\n\u00c7anak \u00e7ap\u0131 3,7 m<\/th>\nMaksimum solucan \u00e7ifti geri tepmesi<\/th>\n\u0130htiya\u00e7 duyulan \u00e7ift t\u00fcr\u00fc<\/th>\n<\/tr>\n<\/thead>\n
C band\u0131 (6 GHz)<\/td>\nI\u015f\u0131n 2,9\u00b0<\/td>\n1,5\u00b0'lik a\u00e7\u0131<\/td>\nI\u015f\u0131n 1.0\u00b0<\/td>\n6 \u2013 10 ark dakika<\/td>\nStandart (\u00f6nceden y\u00fcklenmemi\u015f)<\/td>\n<\/tr>\n
Ku band\u0131 (14 GHz)<\/td>\nI\u015f\u0131n 1,2\u00b0<\/td>\nI\u015f\u0131n 0,6\u00b0<\/td>\nI\u015f\u0131n 0,4\u00b0<\/td>\n2 \u2013 5 ark dakika<\/td>\nS\u0131k\u0131 standart veya dubleks<\/td>\n<\/tr>\n
Ka band\u0131 (30 GHz)<\/td>\nI\u015f\u0131n 0,6\u00b0<\/td>\nI\u015f\u0131n 0,3\u00b0<\/td>\nI\u015f\u0131n 0,2\u00b0<\/td>\n1 \u2013 2 ark dakika<\/td>\n\u00d6nceden y\u00fcklenmi\u015f \u00e7ift y\u00f6nl\u00fc zorunlu<\/td>\n<\/tr>\n
V-band \/ LEO takibi<\/td>\nI\u015f\u0131n 0,3\u00b0<\/td>\nI\u015f\u0131n 0,15\u00b0<\/td>\nI\u015f\u0131n 0,1\u00b0<\/td>\n< 1 ark dakika (< 60 ark saniye)<\/td>\n\u00d6nceden y\u00fcklenmi\u015f + kodlay\u0131c\u0131 geri bildirimi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

B\u00fct\u00e7e tablosu, C band\u0131ndan (10 ark dakika) V band\u0131na\/LEO'ya (1 ark dakikan\u0131n alt\u0131nda) kadar izin verilen bo\u015flukta 10 katl\u0131k bir aral\u0131\u011f\u0131 ortaya koymaktad\u0131r. C band\u0131 VSAT terminali i\u00e7in m\u00fckemmel derecede yeterli olan bir sonsuz di\u015fli \u00e7ifti, Ka band\u0131 yer istasyonu i\u00e7in tamamen kullan\u0131lamaz hale gelir; ayn\u0131 mekanik bile\u015fen, tork veya h\u0131z dikkate al\u0131nmadan \u00f6nce bile ileti\u015fim spesifikasyonunu kar\u015f\u0131layamaz. Bu nedenle, anten sonsuz di\u015fli \u00e7ifti tedariki, mekanik spesifikasyon (tork + oran) ile de\u011fil, RF spesifikasyonu (frekans band\u0131 + \u00e7anak boyutu) ile ba\u015flamal\u0131d\u0131r.<\/p>\n

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Denizcilikte kullan\u0131lan stabilize anten \u2014 gemi hareketine ba\u011fl\u0131 s\u00fcrekli izleme<\/h2>\n

\"Denizcilikte<\/p>\n

Karada kurulu antenler bir kez y\u00f6nlendirilir ve sabit kal\u0131r; sonsuz di\u015fli \u00e7ifti ilk hizalama s\u0131ras\u0131nda birka\u00e7 dakika \u00e7al\u0131\u015f\u0131r, ard\u0131ndan aylarca veya y\u0131llarca statik kal\u0131r. Denizde kullan\u0131lan stabilize antenler ise bunun tam tersidir: gemi s\u00fcrekli olarak yalpalar (art\u0131 veya eksi 15 ila 30 derece), e\u011fimler (art\u0131 veya eksi 5 ila 10 derece) ve sapmalar (art\u0131 veya eksi 3 ila 5 derece) yapar. Anten konumland\u0131r\u0131c\u0131, geminin hareketine ra\u011fmen \u0131\u015f\u0131n demetini uyduya do\u011fru tutmak i\u00e7in her iki eksende de ters y\u00f6nde d\u00f6nmelidir; bu, saniyede 10 ila 50 d\u00fczeltme yapan s\u00fcrekli bir servo d\u00f6ng\u00fcs\u00fcd\u00fcr.<\/p>\n

Bu s\u00fcrekli izleme, y\u0131lda 5 ila 15 milyon sonsuz di\u015fli \u00e7ifti konumland\u0131rma d\u00f6ng\u00fcs\u00fc \u00fcretir; bu, karada bulunan jeostasyonel bir antene g\u00f6re 1.000 kat daha y\u00fcksek ve A35 maddesinde ele al\u0131nan r\u00fczgar t\u00fcrbini kanat a\u00e7\u0131s\u0131 tahrik sistemleriyle kar\u015f\u0131la\u015ft\u0131r\u0131labilir bir yorulma y\u00fckleme rejimidir. Sonsuz di\u015fli \u00e7iftinin malzemesi bu yorulmaya dayanmal\u0131d\u0131r: santrif\u00fcj d\u00f6k\u00fcm fosfor bronz veya al\u00fcminyum bronz tekerlekler (kum d\u00f6k\u00fcm tekerlekler, denizcilik hizmetinde 2 ila 3 y\u0131l i\u00e7inde g\u00f6zeneklilik b\u00f6lgelerinde yorulma \u00e7atlaklar\u0131 geli\u015ftirir). Sonsuz di\u015fli, HRC 58+ sertli\u011fe kadar sertle\u015ftirilmeli ve Ra 0,3 \u00b5m veya daha iyi bir de\u011fere kadar ta\u015flanmal\u0131d\u0131r; di\u015fli sonsuz di\u015fliler, s\u00fcrekli geri d\u00f6n\u00fc\u015f y\u00fck\u00fc alt\u0131nda a\u015f\u0131r\u0131 bo\u015fluk art\u0131\u015f\u0131na neden olur.<\/p>\n

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M\u00fchendislik masas\u0131 notu<\/div>\n

Koreli bir denizcilik VSAT \u00fcreticisi, 12 konteyner gemisine Ku-band stabilize anten sistemleri kurdu. Her antende iki adet sonsuz di\u015fli \u00e7ifti (azimut ve y\u00fckseklik) bulunuyordu. Orijinal spesifikasyonda standart end\u00fcstriyel sonsuz di\u015fli \u00e7iftleri kullan\u0131lm\u0131\u015ft\u0131: mod\u00fcl 1,5, merkez mesafesi 35 mm, oran 90:1, kum d\u00f6k\u00fcm fosfor bronz tekerlek, bo\u015fluk 5 yay dakikas\u0131. 1,0 m \u00e7anak anten i\u00e7in Ku-band y\u00f6nlendirme b\u00fct\u00e7esi maksimum 3 yay dakikas\u0131 gerektiriyordu; bu da 5 yay dakikas\u0131 ba\u015flang\u0131\u00e7 \u200b\u200bbo\u015flu\u011fuyla zaten s\u0131n\u0131rda bir de\u011ferdi. 18 ayl\u0131k s\u00fcrekli denizcilik takibinden sonra (eksen ba\u015f\u0131na yakla\u015f\u0131k 7,5 milyon ters \u00e7evirme d\u00f6ng\u00fcs\u00fc), 24 y\u00fckseklik ekseni \u00e7iftinden 5'inde 12 yay dakikas\u0131n\u0131n \u00fczerinde bo\u015fluk olu\u015ftu; kum d\u00f6k\u00fcm bronz tekerleklerde d\u00f6k\u00fcm g\u00f6zeneklili\u011fi b\u00f6lgelerinde y\u00fczey alt\u0131 yorgunluk \u00e7atlaklar\u0131 meydana gelmi\u015fti. Etkilenen gemilerde sinyal kalitesi d\u00fc\u015ft\u00fc ve \u015fiddetli hava ko\u015fullar\u0131nda (gemi hareket genli\u011finin en y\u00fcksek oldu\u011fu ve sonsuz di\u015fli \u00e7iftinin en \u00e7ok \u00e7al\u0131\u015ft\u0131\u011f\u0131 zamanlarda) aral\u0131kl\u0131 ba\u011flant\u0131 kesintileri ya\u015fand\u0131. Filo genelinde santrif\u00fcj d\u00f6k\u00fcm al\u00fcminyum bronz di\u015fli \u00e7arklar (g\u00f6zeneksiz, \u00fcst\u00fcn yorulma \u00f6mr\u00fc) ve \u00f6nceden y\u00fcklenmi\u015f \u00e7ift y\u00f6nl\u00fc spesifikasyon (2 ark dakikas\u0131n\u0131n alt\u0131nda bo\u015fluk) ile de\u011fi\u015ftirme. De\u011fi\u015ftirme \u00e7ifti ba\u015f\u0131na maliyet: 280 USD (orijinal 120 USD'ye kar\u015f\u0131l\u0131k) - 160 USD'lik bir prim. 3 k\u0131tada 5 gemiye y\u00f6nelik filo genelindeki ba\u011flant\u0131 kalitesi \u015fikayetleri ve acil teknisyen ziyaretlerinin maliyeti: yakla\u015f\u0131k 45.000 USD. Ders: Deniz anteni sonsuz di\u015fli \u00e7ark \u00e7iftleri, statik y\u00fck end\u00fcstriyel g\u00f6revine de\u011fil, s\u00fcrekli tersine \u00e7evrilmi\u015f yorulmaya g\u00f6re belirtilmelidir. Hareketli bir platformdan uydu izleyen herhangi bir anten i\u00e7in santrif\u00fcj d\u00f6k\u00fcm (kum d\u00f6k\u00fcm de\u011fil) di\u015fli \u00e7arklar ve \u00f6nceden y\u00fcklenmi\u015f (standart bo\u015fluk de\u011fil) spesifikasyon zorunludur.<\/p>\n<\/div>\n

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\u00dc\u00e7 anten konumland\u0131r\u0131c\u0131 sonsuz di\u015fli \u00e7ifti spesifikasyon vakas\u0131<\/h2>\n

\"Uydu<\/p>\n

\u00d6rnek 1 \u2014 Kore denizcilik VSAT'\u0131: Ku-band, 1,0 m \u00e7anak anten, stabilize edilmi\u015f, s\u00fcrekli izleme<\/h3>\n

Koreli bir denizcilik VSAT \u00fcreticisi, Ku band\u0131nda stabilize edilmi\u015f bir antenin (1,0 m \u00e7anak, 14\/12 GHz yukar\u0131 ba\u011flant\u0131\/a\u015fa\u011f\u0131 ba\u011flant\u0131) azimut ve y\u00fckseklik eksenleri i\u00e7in sonsuz di\u015fli \u00e7iftleri belirlemi\u015ftir. I\u015f\u0131n geni\u015fli\u011fi: 1,4 derece. Maksimum y\u00f6nlendirme hatas\u0131: 0,14 derece (\u0131\u015f\u0131n geni\u015fli\u011finin 'u). Sonsuz di\u015fli \u00e7ifti bo\u015fluk da\u011f\u0131l\u0131m\u0131: 0,04 derece = 2,4 yay dakikas\u0131. D\u00fczeltilmi\u015f \u00f6zellik (filo olay\u0131ndan sonra): \u00f6n y\u00fcklemeli \u00e7ift y\u00f6nl\u00fc, mod\u00fcl 1,5, merkez mesafesi 35 mm, oran 90:1, toprak Ra 0,3 \u00b5m. \u00c7ark: santrif\u00fcj d\u00f6k\u00fcm al\u00fcminyum bronz (20 milyon ters \u00e7evrim i\u00e7in yorulma dereceli). Etkin bo\u015fluk: 1,8 yay dakikas\u0131. Motor: 65.536 say\u0131ml\u0131 mutlak enkoderli 24 V DC servo. R\u00fczgar tutma torku (saklama pozisyonu, Beaufort 10): 450 N\u00b7m. G\u00f6vde: Denizcilik s\u0131n\u0131f\u0131 epoksi kapl\u0131 al\u00fcminyum, IP66. \u00c7ift ba\u015f\u0131na maliyet: 280 USD. Anten ba\u015f\u0131na iki adet: 560 USD. Y\u0131ll\u0131k \u00fcretim: 800 anten sistemi (1.600 sonsuz di\u015fli \u00e7ifti). Y\u00fckseltme sonras\u0131 sinyal kalitesi: Filo genelinde y\u00f6nlendirme hatas\u0131ndan kaynaklanan s\u0131f\u0131r ba\u011flant\u0131 kesintisi.<\/p>\n

Vaka 2 \u2014 Japon al\u00e7ak D\u00fcnya y\u00f6r\u00fcngesi uydu takibi: Ka band\u0131, 3,7 m \u00e7anak anten, yay saniyesinin alt\u0131nda hassasiyet, yer tabanl\u0131<\/h3>\n

Bir Japon uydu ileti\u015fim \u015firketi, geni\u015f bant internet a\u011f ge\u00e7idi hizmeti i\u00e7in al\u00e7ak D\u00fcnya y\u00f6r\u00fcngesindeki uydular\u0131 izleyen 3,7 metrelik Ka-band yer istasyonu i\u00e7in sonsuz di\u015fli \u00e7iftleri belirledi. I\u015f\u0131n geni\u015fli\u011fi: 0,2 derece. Maksimum y\u00f6nlendirme hatas\u0131: 0,02 derece = 72 yay saniyesi. Sonsuz di\u015fli \u00e7ifti bo\u015flu\u011fu tahsisi: 15 yay saniyesi (toplam y\u00f6nlendirme b\u00fct\u00e7esinin 'si). Bu, \u00f6nceden y\u00fcklenmi\u015f \u00e7ift y\u00f6nl\u00fc ula\u015f\u0131labilir s\u0131n\u0131r\u0131n (tipik olarak 1 ila 2 yay dakikas\u0131 = 60 ila 120 yay saniyesi) alt\u0131ndayd\u0131; bu da, anten eksenine do\u011frudan monte edilmi\u015f hassas bir optik kodlay\u0131c\u0131 arac\u0131l\u0131\u011f\u0131yla ger\u00e7ek anten konumunu \u00f6l\u00e7en ek bir kodlay\u0131c\u0131 geri besleme d\u00fczeltme d\u00f6ng\u00fcs\u00fc gerektiriyordu (kontrol d\u00f6ng\u00fcs\u00fcndeki sonsuz di\u015fli \u00e7ifti bo\u015flu\u011funu atlayarak). Sonsuz di\u015fli \u00e7ifti: \u00f6nceden y\u00fcklenmi\u015f \u00e7ift y\u00f6nl\u00fc, mod\u00fcl 2, merkez mesafesi 50 mm, oran 360:1, ta\u015flanm\u0131\u015f Ra 0,2 \u00b5m, DIN s\u0131n\u0131f\u0131 3. Etkin mekanik bo\u015fluk: 45 yay saniyesi \u2014 ancak kodlay\u0131c\u0131 geri besleme d\u00f6ng\u00fcs\u00fc, yaz\u0131l\u0131mda bo\u015flu\u011fu telafi ederek etkin y\u00f6nlendirme hatas\u0131n\u0131 10 yay saniyesinin alt\u0131na d\u00fc\u015f\u00fcrd\u00fc. \u00c7ark: nikel katk\u0131l\u0131 santrif\u00fcj d\u00f6k\u00fcm kalay bronz. \u00c7ift ba\u015f\u0131na maliyet: 850 USD. Anten ba\u015f\u0131na iki adet: 1.700 USD. G\u00f6zat antenler i\u00e7in hassas sonsuz di\u015fli red\u00fckt\u00f6rleri<\/a> Uydu takibi ve yer istasyonu uygulamalar\u0131 i\u00e7in se\u00e7enekler.<\/p>\n

Vaka 3 \u2014 Vietnam yay\u0131n ba\u011flant\u0131s\u0131: C band\u0131, 4,5 m \u00e7anak anten, sabit jeostasyonel, maliyet optimizasyonu<\/h3>\n

Vietnaml\u0131 bir televizyon yay\u0131nc\u0131s\u0131, jeostasyonel bir uyduya y\u00f6nlendirilmi\u015f 4,5 metrelik C-band\u0131 uplink anteninin azimut ve y\u00fckseklik tahrikleri i\u00e7in sonsuz di\u015fli \u00e7iftleri belirledi. I\u015f\u0131n geni\u015fli\u011fi: 0,8 derece. Maksimum y\u00f6nlendirme hatas\u0131: 0,08 derece = 4,8 yay dakikas\u0131. C\u00f6mert C-band\u0131 b\u00fct\u00e7esi, 6 yay dakikas\u0131 bo\u015fluk pay\u0131na sahip standart (\u00f6nceden y\u00fcklenmemi\u015f) bir sonsuz di\u015fli \u00e7iftine izin verdi; bu da 4,8 yay dakikas\u0131 tahsisinin olduk\u00e7a alt\u0131nda ve marjl\u0131 bir de\u011ferdi. Anten kurulumda bir kez y\u00f6nlendirildi ve yaln\u0131zca y\u0131ll\u0131k bak\u0131m s\u0131ras\u0131nda yeniden ayarland\u0131; esasen y\u0131lda s\u0131f\u0131r \u00e7al\u0131\u015fma d\u00f6ng\u00fcs\u00fc (en d\u00fc\u015f\u00fck g\u00f6rev uygulamas\u0131). Sonsuz di\u015fli \u00e7ifti: tek ba\u015flang\u0131\u00e7l\u0131, mod\u00fcl 3, merkez mesafesi 80 mm, oran 72:1, toprak Ra 0,4 \u00b5m. Standart fosfor bronz tekerlek (yorgunluk gereksinimi yok - s\u0131f\u0131r d\u00f6ng\u00fc). 4,5 m \u00e7anakta r\u00fczgar tutma torku: 3.200 N\u00b7m (tasar\u0131m r\u00fczgar\u0131 35 m\/s). G\u00f6vde: s\u0131cak dald\u0131rma galvanizli, IP55. \u00c7ift ba\u015f\u0131na maliyet: 145 USD. Anten ba\u015f\u0131na iki adet: 290 USD. Teknik \u00f6zellikler, C band\u0131 sabit noktal\u0131 antenlerin, herhangi bir sekt\u00f6rdeki en az zorlay\u0131c\u0131 sonsuz di\u015fli \u00e7ifti uygulamalar\u0131 aras\u0131nda oldu\u011funu g\u00f6stermektedir; bir paketleme makinesi indeksleme tahrikinden (Madde A16) daha d\u00fc\u015f\u00fck hassasiyet, daha d\u00fc\u015f\u00fck \u00e7al\u0131\u015fma y\u00fck\u00fc ve daha d\u00fc\u015f\u00fck maliyet.<\/p>\n

<\/p>\n

S\u0131k\u00e7a sorulan sorular<\/h2>\n
\n
\nS: Antenim i\u00e7in sonsuz di\u015fli \u00e7ifti geri tepme b\u00fct\u00e7esini nas\u0131l hesaplar\u0131m?<\/summary>\n

3 dB \u0131\u015f\u0131n geni\u015fli\u011fi ile ba\u015flay\u0131n: BW = 70 \u00d7 \u03bb \/ D (derece), burada \u03bb dalga boyu (m) ve D \u00e7anak \u00e7ap\u0131d\u0131r (m). \u0130zin verilen maksimum toplam y\u00f6nlendirme hatas\u0131, genellikle \u0131\u015f\u0131n geni\u015fli\u011finin ila 'si kadard\u0131r (ba\u011flant\u0131 b\u00fct\u00e7esi marj\u0131na ba\u011fl\u0131 olarak). Toplam y\u00f6nlendirme b\u00fct\u00e7esinin ila 'unu sonsuz di\u015fli \u00e7ifti bo\u015flu\u011funa ay\u0131r\u0131n (yap\u0131sal sapma, termal genle\u015fme ve r\u00fczgar esnemesi i\u00e7in ila 'ini ay\u0131r\u0131n). \u00d6rnek: 30 GHz'de Ka band\u0131 (\u03bb = 0,01 m), D = 2,4 m: BW = 70 \u00d7 0,01 \/ 2,4 = 0,29 derece. 'lik toplam hata b\u00fct\u00e7esi: 0,044 derece = 2,6 yay dakikas\u0131. 'lik sonsuz di\u015fli \u00e7ifti tahsisi: 0,65 yay dakikas\u0131 = 39 yay saniyesi. Bu, \u00f6nceden y\u00fcklenmi\u015f bir \u00e7ift y\u00f6nl\u00fc kablo gerektirir; standart kablolar 1 ark dakikas\u0131n\u0131n alt\u0131na inemez.<\/p>\n<\/details>\n

\nS: Denizcilikte kullan\u0131lan anten takip sistemlerinde sonsuz di\u015fli \u00e7iftlerinin a\u015f\u0131nmas\u0131n\u0131n nedeni karada kullan\u0131lan sistemlere g\u00f6re neden daha h\u0131zl\u0131d\u0131r?<\/summary>\n

Karada kurulu jeostasyonel bir anten, konumunu bir kez (kurulum s\u0131ras\u0131nda) ayarlar ve sabit tutar; sonsuz di\u015fli \u00e7ifti y\u0131lda 100'den az konumland\u0131rma d\u00f6ng\u00fcs\u00fc ger\u00e7ekle\u015ftirebilir. Denizcilikte kullan\u0131lan stabilize bir anten ise geminin yalpa, e\u011fim ve sapmas\u0131n\u0131 s\u00fcrekli olarak d\u00fczeltir; saniyede 10 ila 50 d\u00fczeltme yaparak, g\u00fcnde 24 saat \u00e7al\u0131\u015f\u0131r ve y\u0131lda 5 ila 15 milyon ters \u00e7evirme d\u00f6ng\u00fcs\u00fc \u00fcretir. Bu s\u00fcrekli ters \u00e7evirme y\u00fck\u00fc, standart end\u00fcstriyel sonsuz di\u015fli \u00e7iftlerinin tasarlanmad\u0131\u011f\u0131 tekerlek di\u015flerinin yan y\u00fczeylerinde temas yorgunlu\u011funa neden olur. Kum d\u00f6k\u00fcm bronz tekerlekler (d\u00f6k\u00fcm i\u015fleminden kaynaklanan mikro g\u00f6zeneklilik i\u00e7erir), bu g\u00f6zeneklilik b\u00f6lgelerinde 2 ila 3 y\u0131l i\u00e7inde y\u00fczey alt\u0131 yorgunluk \u00e7atlaklar\u0131 geli\u015ftirir. Santrif\u00fcj d\u00f6k\u00fcm veya d\u00f6vme tekerlekler (g\u00f6zeneksiz), ayn\u0131 denizcilik izleme g\u00f6revinde 8 ila 12 y\u0131l dayan\u0131r.<\/p>\n<\/details>\n

\nS: Kodlay\u0131c\u0131 geri beslemesi, anten izlemede sonsuz di\u015fli \u00e7ifti bo\u015flu\u011funu telafi edebilir mi?<\/summary>\n

Evet, hassas bir enkoderi motor miline (di\u015fli \u00e7iftinden \u00f6nce) de\u011fil, do\u011frudan anten eksenine (di\u015fli \u00e7iftinden sonra) monte ederek. Eksen \u00fczerine monte edilen enkoder, bo\u015fluk da dahil olmak \u00fczere ger\u00e7ek anten a\u00e7\u0131s\u0131n\u0131 \u00f6l\u00e7er ve servo kontrol \u00fcnitesi motor konumunu ayarlayarak bunu telafi eder. Bu teknik, etkili y\u00f6nlendirme hatas\u0131n\u0131 mekanik bo\u015flu\u011fun ila 'sine kadar d\u00fc\u015f\u00fcrebilir; bu da 3 yay dakikas\u0131 mekanik bo\u015flu\u011fa sahip bir \u00e7iftin yay dakikas\u0131n\u0131n alt\u0131nda etkili y\u00f6nlendirme elde etmesini sa\u011flar. Dezavantaj\u0131: eksen \u00fczerine monte edilen enkoderler 800 ila 3.000 ABD dolar\u0131 (motor miline monte edilen enkoderler i\u00e7in 50 ila 200 ABD dolar\u0131na kar\u015f\u0131l\u0131k) maliyetlidir ve montaj karma\u015f\u0131kl\u0131\u011f\u0131n\u0131 art\u0131ran hassas montaj gerektirir. Bu yakla\u015f\u0131m, y\u00f6nlendirme gereksiniminin herhangi bir di\u015fli \u00e7ifti taraf\u0131ndan elde edilebilecek mekanik bo\u015flu\u011fu a\u015ft\u0131\u011f\u0131 Ka band\u0131 ve LEO izleme sistemleri i\u00e7in standartt\u0131r.<\/p>\n<\/details>\n

\nS: D\u0131\u015f mekan antenlerindeki sonsuz di\u015fli \u00e7iftlerinin korozyona kar\u015f\u0131 ne t\u00fcr bir korumaya ihtiyac\u0131 vard\u0131r?<\/summary>\n

Karada kurulu antenlerin \u00e7o\u011fu, s\u0131cak dald\u0131rma galvanizli g\u00f6vde ve standart contalar\u0131n 15 y\u0131ldan fazla hizmet \u00f6mr\u00fc sa\u011flad\u0131\u011f\u0131 standart d\u0131\u015f mekan ortamlar\u0131nda (ISO 12944 C2 ila C3) \u00e7al\u0131\u015f\u0131r. Deniz antenleri, C5-M (Madde A29'daki vin\u00e7 tahrikleriyle ayn\u0131 deniz s\u0131n\u0131fland\u0131rmas\u0131) ko\u015fullar\u0131nda \u00e7al\u0131\u015f\u0131r ve 316L paslanmaz \u00e7elik veya deniz kaplamal\u0131 g\u00f6vde ve FKM contalar gerektirir. Denizden 1 km'ye kadar olan k\u0131y\u0131 kara antenleri, epoksi kapl\u0131 g\u00f6vde ve EPDM contalar gerektiren C4 ko\u015fullar\u0131na maruz kalabilir. Korozyon spesifikasyonu, y\u00f6nlendirme do\u011frulu\u011fu spesifikasyonundan ba\u011f\u0131ms\u0131zd\u0131r; gev\u015fek geri tepme \u00f6zelli\u011fine sahip bir C band\u0131 anteni, bir gemiye monte edildi\u011finde yine de C5-M korozyon korumas\u0131na ihtiya\u00e7 duyar.<\/p>\n<\/details>\n

\nS: Bir anten konumland\u0131r\u0131c\u0131 sonsuz di\u015fli \u00e7iftinin tipik kullan\u0131m \u00f6mr\u00fc ne kadard\u0131r?<\/summary>\n

Karasal jeostasyonel: 15 ila 25 y\u0131l (esas olarak s\u0131f\u0131r d\u00f6ng\u00fc - korozyon ve conta bozulmas\u0131 \u00f6mr\u00fc s\u0131n\u0131rlayan fakt\u00f6rlerdir). Karasal al\u00e7ak D\u00fcnya y\u00f6r\u00fcngesi (LEO) izleme: 8 ila 15 y\u0131l (g\u00fcnde 500 ila 2.000 izleme aras\u0131nda orta d\u00fczeyde d\u00f6ng\u00fc). Denizde stabilize edilmi\u015f: 5 ila 10 y\u0131l (s\u00fcrekli y\u00fcksek d\u00f6ng\u00fcl\u00fc yorulma - santrif\u00fcj d\u00f6k\u00fcm tekerlekler 8 ila 12 y\u0131la kadar uzar). Sonsuz vida, her durumda antenin \u00f6mr\u00fc boyunca dayan\u0131r (sertle\u015ftirilmi\u015f \u00e7elik, ta\u015flanm\u0131\u015f y\u00fczey, d\u00fc\u015f\u00fck temas gerilimi). Tekerlek, t\u00fcketilebilir elemand\u0131r - anten besleme elektroni\u011fi yenilemesiyle ayn\u0131 aral\u0131kta de\u011fi\u015ftirilmesi planlanmal\u0131d\u0131r.<\/p>\n<\/details>\n<\/div>\n

<\/p>\n

Anten konumland\u0131r\u0131c\u0131 sonsuz di\u015fli \u00e7iftleri, mekanik m\u00fchendisli\u011fi ile RF ileti\u015fimi aras\u0131ndaki bo\u015flu\u011fu doldurur; di\u015fli \u00e7iftindeki bo\u015fluk, antenin y\u00f6nlendirme do\u011frulu\u011funu do\u011frudan belirler ve bu da uydu ba\u011flant\u0131s\u0131ndaki sinyal kalitesini belirler. Y\u00f6nlendirme do\u011frulu\u011fu b\u00fct\u00e7e tablosu, frekans band\u0131n\u0131 ve \u00e7anak \u00e7ap\u0131n\u0131 izin verilen maksimum bo\u015flu\u011fa e\u015fler; bu da Ka band\u0131 ve LEO izleme sistemlerinin, yay dakikas\u0131n\u0131n alt\u0131nda bo\u015flu\u011fa sahip \u00f6nceden y\u00fcklenmi\u015f \u00e7ift y\u00f6nl\u00fc di\u015fli \u00e7iftleri gerektirdi\u011fini, C band\u0131 sabit nokta sistemlerinin ise 6 ila 10 yay dakikas\u0131 aras\u0131nda standart end\u00fcstriyel di\u015fli \u00e7iftlerini tolere etti\u011fini ortaya koymaktad\u0131r. Denizcilikte kullan\u0131lan stabilize antenler, y\u0131lda 5 ila 15 milyon d\u00f6ng\u00fcde s\u00fcrekli tersine d\u00f6nme yorgunlu\u011funa neden olur; bu da santrif\u00fcj d\u00f6k\u00fcm tekerlekler ve kum d\u00f6k\u00fcm standart di\u015fli \u00e7iftlerinin dayanamayaca\u011f\u0131 \u00f6nceden y\u00fcklenmi\u015f \u00f6zellikler gerektirir. Anten \u00fcreticileri i\u00e7in sonsuz di\u015fli \u00e7ifti spesifikasyonu, mekanik tork hesaplamas\u0131yla de\u011fil, RF ba\u011flant\u0131 b\u00fct\u00e7esiyle ba\u015flar.<\/p>\n

Anten \u00fcreticileri ve uydu ileti\u015fim \u015firketleri i\u00e7in, m\u00fchendislik departman\u0131m\u0131z RF spesifikasyonlar\u0131n\u0131zdan y\u00f6nlendirme b\u00fct\u00e7esini hesaplar ve sonsuz di\u015fli \u00e7ifti bo\u015fluk s\u0131n\u0131f\u0131n\u0131 \u00f6nerir. Standart katalog hassas sonsuz di\u015fli tak\u0131mlar\u0131<\/a> 25 ila 100 mm merkez mesafesi aral\u0131\u011f\u0131ndaki anten konumland\u0131r\u0131c\u0131 boyutlar\u0131n\u0131, standart ve \u00f6nceden y\u00fcklenmi\u015f \u00e7ift y\u00f6nl\u00fc se\u00e7eneklerle kapsar. Bir talep g\u00f6nderin. anten s\u00fcr\u00fcc\u00fcs\u00fc \u00f6zellikleri<\/a> Frekans band\u0131, \u00e7anak \u00e7ap\u0131, izleme tipi (sabit\/LEO\/denizcilik) ve r\u00fczgar tasar\u0131m h\u0131z\u0131 ile birlikte.<\/p>\n

<\/p>\n

\n

Anten konumland\u0131r\u0131c\u0131lar i\u00e7in sonsuz di\u015fli \u00e7iftleri mi belirtiliyor?<\/h3>\n

Frekans band\u0131n\u0131, \u00e7anak \u00e7ap\u0131n\u0131, izleme tipini (jeostasyonel, al\u00e7ak D\u00fcnya y\u00f6r\u00fcngesi, denizcilik), r\u00fczgar tasar\u0131m h\u0131z\u0131n\u0131 ve antenin karada m\u0131 yoksa gemide mi monte edildi\u011fini g\u00f6nderin. Y\u00f6nlendirme b\u00fct\u00e7esini hesaplayacak ve geri tepme s\u0131n\u0131f\u0131n\u0131, \u00f6n y\u00fckleme y\u00f6ntemini ve korozyon \u00f6zelliklerini \u00f6nerece\u011fiz.<\/p>\n

Anten s\u00fcr\u00fcc\u00fcs\u00fc teknik \u00f6zelliklerini isteyin \u2192<\/a><\/p>\n<\/div>\n

Edit\u00f6r: Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Korea Ever-Power \u00b7 Application Engineering Guide Worm and Worm Wheel for Antenna Positioner and Satellite Dish Drives A Ka-band earth station with a 1.2-metre dish has a beam width of 0.6 degrees. The satellite sits 36,000 km away in geostationary orbit. If the worm gear pair driving the antenna azimuth axis has 4 arcminutes of […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[2821],"tags":[],"class_list":["post-1400","post","type-post","status-publish","format-standard","hentry","category-worm-and-worm-wheel"],"_links":{"self":[{"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/posts\/1400","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/comments?post=1400"}],"version-history":[{"count":2,"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/posts\/1400\/revisions"}],"predecessor-version":[{"id":1402,"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/posts\/1400\/revisions\/1402"}],"wp:attachment":[{"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/media?parent=1400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/categories?post=1400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/tr\/wp-json\/wp\/v2\/tags?post=1400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}