Iinkqubo zeVidiyo ezisetyenziswa kakhulu yi-Ingiant Medium Frequency Slip-Ring

1. Isishwankathelo seMveliso

Olu xwebhu luchaza i-rotary joint engaqhelekanga, eyenziwe ngokwezifiso eyenzelwe ukuhanjiswa okuqhubekayo kwemiqondiso ye-RF kwii-interfaces ezijikelezayo. Esi sixhobo sixhasa iziteshi ezintathu ezizimeleyo ze-50Ω kuluhlu lweefrikhwensi ze-1–5.25GHz, nto leyo eyenza ukuba ifaneleke kwi-radar, unxibelelwano lwesathelayithi, iibhentshi zovavanyo lwemfazwe ze-elektroniki, iinkqubo zokubeka i-antenna, kunye nee-turntable zokulinganisa i-microwave.

Ngokungafaniyo neeringi zesiqhelo zokutyibilika ezithumela amandla okanye imiqondiso yesantya esiphantsi, le rotary joint igcina ukuthembeka kwesignali - kubandakanya ukulahleka kokufakwa, i-VSWR, ukuhlukaniswa, kunye nokuzinza kwesigaba - kuyo yonke ijikelezo eqhubekayo ye-360°. Idibanisa umngeni osisiseko wobunjineli wokugcina ukusebenza kwe-RF phakathi kwamaqonga amileyo najikelezayo ngaphandle kokujija intambo, ukudinwa okugobileyo, okanye ukuphazamiseka kwesignali.

2. Itheyibhile yeParameter epheleleyo

Iiparamitha zoomatshini kunye nezeNdalo

3. Ukutolikwa koBunjineli kweeParamitha eziPhambili

3.1 Uluhlu lweeFrequency: 1 – 5.25 GHz

Olu luhlu luquka i-L-band (1–2 GHz), i-S-band (2–4 GHz), kunye nenxalenye esezantsi ye-C-band (4–5.25 GHz). Usetyenziso oluqhelekileyo luquka:

• Ibhendi ye-L: i-GPS, i-BeiDou, i-IFF (Ukuchonga umhlobo okanye utshaba), iradar yolawulo lwezithuthi zomoya
• Ibhendi ye-S: iradar yemozulu, iradar yokujonga iinqanawa, amakhonkco onxibelelwano lwesathelayithi
• Ibhendi ye-C: ezinye ii-uplinks zeTV yesathelayithi, ii-links ze-microwave ezikude

Iinguqulelo ezenziwe ngokwezifiso zinokwandisa ukugubungela kwamaza ukusuka kwi-DC ukuya kwi-18 GHz, 26.5 GHz, okanye i-40 GHz, okanye zinciphise ibhendi ukuze kuphuculwe ilahleko kunye ne-VSWR.

3.2 Amandla Aphakathi: 10W ngetshaneli nganye

Umlinganiselo we-10W continuous wave (CW) usebenza phantsi kweemeko zomthwalo ohambelanayo kubushushu begumbi. Kwiisignali ezishukumayo ezinemijikelo yomsebenzi ophantsi (umz., i-radar enomjikelo womsebenzi we-1%), amandla aphezulu anokufikelela kumakhulu amaninzi eewatts. Ulawulo lobushushu lubaluleka ngaphezu kwe-10W, kwaye amazinga aphezulu amandla (50W, 100W) ayafumaneka ngokulungiswa koyilo oluqhelekileyo kubandakanya ukuphuculwa kobushushu kunye nokuphuculwa kwezinto ze-dielectric.

3.3 Utshintsho lwe-VSWR kunye ne-VSWR

I-VSWR eyi-1.5 ithathwa njengelungileyo kwijoyinti ejikelezayo ngaphezulu kwe-bandwidth ye-multi-octave. Utshintsho lwe-VSWR lubonisa indlela ukutshintsha kokuhambelana kwe-impedance ngexesha lokujikeleza. Itshaneli 1 ifikelela kutshintsho lwe-±0.1 dB - ukunyamezelana okuqinileyo okubonisa ukuqina okungaqhelekanga koomatshini kunye nozinzo loqhagamshelwano.

3.4 Utshintsho lweLahleko kunye neLahleko lokufakwa

Ukulahleka kokufakwa kuquka izinto ezintathu:

• Ukulahleka komqhubi (isiphumo solusu kumqhubi osembindini nakwikhaka langaphandle)
• Ukulahleka kwe-dielectric (i-PTFE okanye enye i-microwave substrate)
• Ukulahleka koqhagamshelwano (ukuxhathisa ujongano olujikelezayo)

Itshaneli 1: Ilahleko ephezulu ye-dB eyi-1 enotshintsho lwe-±0.3 dB
Itshaneli 2: Ilahleko ephezulu ye-1.2 dB enotshintsho lwe-±0.15 dB

Isibalo sokwahluka sidla ngokuba sibaluleke ngakumbi kunokulahleka ngokupheleleyo kwiinkqubo ezitshintshayo. Umzekelo, ukwahluka kwe-0.15 dB kuthetha utshintsho lwe-±1.7% kwi-amplitude yesignali ngaphezulu kokujikeleza okugcweleyo - oku kuncinci kwiinkqubo ezininzi ezisekwe kwi-amplitude ezifana ne-automatic gain control loops okanye ii-simple detectors.

3.5 Ukuzahlula: ≥50 dB

Ukuzahlula kulinganiswa phakathi kweendlela ezimbini. Kwi-50 dB ubuncinci, ukuvuza okuvela kwiChannel 1 ukuya kwiChannel 2 (okanye ngokuchaseneyo) kunciphisa isignali ye-10W ukuya kwi-0.1 mW. Eli nqanaba liqinisekisa:

• Ukwahlulwa kokudlulisela ukuya kokwamkela kwiinkqubo ze-full-duplex
• I-oscillator encinci yendawo ephumayo
• Iimveliso ezincitshisiweyo zokudibanisa izinto kwiindawo ezithwala abantu abaninzi

3.6 Uzinzo lweSigaba: ±2° ukuya ku-±4°

Uzinzo lweSigaba mhlawumbi yeyona nkcazo ibalulekileyo yeenkqubo ezihambelanayo ezifana nezi:

• Iilophu zokulinganisa uluhlu olunezigaba
• Ukufunyanwa kwesikhokelo se-interferometric
• Iirada zokulandelela iMonopulse
• Iradar yokuvula eyenziweyo (i-SAR)
• Abamkeli bokuchongwa abahambelanayo

Kwi-5.25 GHz, utshintsho lwesigaba se-±2° luhambelana notshintsho lobude bendlela ebonakalayo malunga:
ΔL = (Δφ / 360 °) × λ = (2/360) × (299.8 / 5.25) ≈ 0.32 mm

Ukufikelela kuzinzo lwe-±2° kufuna ukuba i-bearing radial runout ibe ngcono kune-0.02 mm kunye neendawo ezithe tye zokunxibelelana ezilaphiweyo - ubungqina bokwenziwa okungqongqo kunye nolawulo lomgangatho.

3.7 Iiparameter zoomatshini ezichaziweyo

Isantya sokujika: ubuninzi be-30 RPM
Ifanelekile kwii-rotator ze-antenna, ii-turntable zovavanyo, ii-radar pedestals, kunye nee-sensors eziskena kancinci. Isantya esiphezulu (ukuya kuthi ga kwi-300 RPM) ziyafumaneka nge-custom bearings kunye ne-dynamic balancing.

Ubomi bokusebenza: ubuncinane i-5 yezigidi zeerandi
Xa isebenza ngokuqhubekayo nge-30 RPM, oku kulingana neentsuku ezili-115 zokujikeleza okungayekiyo. Ukusetyenziswa okuqhelekileyo ngamaxesha athile (umz., iyure e-1 ngosuku kwi-10 RPM), ubomi benkonzo budlula iminyaka engama-80 - ngaphaya kakhulu kobomi benkonzo esebenzayo yemveliso.

I-Torque: ≤0.6 N·m kubushushu begumbi
I-torque ephantsi inciphisa iimfuno kwi-drive motor, ivumela ukusetyenziswa ngamanqanaba amancinci okanye aphezulu okubeka izinto, kwaye inciphisa ukuveliswa kobushushu ngenxa yokungqubana. I-torque iyanda xa amaqondo obushushu ephezulu ngenxa yotshintsho lwe-grease viscosity.

Uluhlu lobushushu: -40°C ukuya ku-+70°C (iyasebenza)
Oku kuyahlangabezana neemfuno zezixhobo zangaphandle zomgangatho womkhosi (MIL-STD-810) kunye nezemizi-mveliso. Ukusebenza kobushushu obuphantsi kuvunyelwe zii-lubricants ezibanzi; ukusebenza kobushushu obuphezulu kufuna ukukhethwa ngononophelo kwezinto ze-dielectric ukuthintela ukuguquguquka.

Uvavanyo lwe-IP51

• I-IP5: Ikhuselwe luthuli (ukungena kothuli okuncinci, akukho nkunkuma inobungozi)
• I-IP1: Ikhuselwe emanzini athontsizayo ngokuthe nkqo

Olu vavanyo luhambelana neendawo zangaphakathi, iindawo ezikhuselekileyo zangaphandle, kunye neerakhi zezixhobo. Amanqaku aphezulu (IP65, IP67) ayafumaneka kwiindawo zangaphandle, ezikwiinqanawa, okanye entlango.

Izinto eziphathekayo: I-aluminium alloy ene-oxidation eqhubayo
I-aluminium inika umbane olula (obalulekileyo kwiindibano ezijikeleziswayo), umbane olungileyo wokushisa (ukusasaza ubushushu kumthwalo we-10W), kunye nokusebenza kakuhle komatshini. I-oxidation eqhubayo iqinisekisa umbane ophezulu womhlaba ukuze usekwe kwi-RF grounding ngelixa ibonelela ngokumelana nokugqwala okusisiseko.

4. Izicelo eziqhelekileyo

4.1 Iinkqubo zeRadar eziPhantsi

Isetyenziswa phakathi kwe-transceiver engashukumiyo kunye ne-antenna array ejikelezayo. Iitshaneli ezintathu zixhasa uthumelo ngaxeshanye, ulwamkelo, kunye ne-calibration loop.

4.2 Unxibelelwano lweSatellite Ii-Antenna Pedestals

Igcina ukuthembeka kwekhonkco le-RF ngexesha lokulandelela i-satellite okuqhubekayo. Uzinzo lwesigaba luchaphazela ngokuthe ngqo isantya sempazamo ye-modulation (MER) kunye nesantya sempazamo ye-bit (BER).

4.3 Iibhentshi zovavanyo zeMfazwe ye-elektroniki (EW)

Izilayimi ze-emitter ezijikelezayo zifuna isigaba esizinzileyo kunye ne-amplitude kwiitshaneli ezininzi zokulinganisa i-angle-of-arrival (AOA).

4.4 Izixhobo zonyango zeMicrowave

Iintloko zemifanekiso ejikelezayo okanye zonyango (umz., iinkqubo ze-microwave hyperthermia) zifuna ukuhanjiswa kwe-RF okuthembekileyo ngaphandle kokudinwa kwentambo.

4.5 Ukufudumeza iMicrowave yemizi-mveliso

Iijoyinti ezijikelezayo zenza ukuba izinto ziqhubeke zisetyenzwa kwii-oveni ze-microwave okanye kwiinkqubo zokomisa.

4.6 IiTurntable zoVavanyo kunye noBuchule

Amagumbi okulinganisa iipateni ze-antenna asebenzisa amalungu ajikelezayo ukondla i-antenna evavanywayo (AUT) ngelixa ejikeleza.

5. Amandla Okwenza Izinto Ngokwesiqhelo

Le mveliso yenzelwe ngokucacileyo njengeqonga elenziwe ngokwezifiso. Ezi parameter zilandelayo zinokuguqulwa ngokweemfuno zomthengi:

6. Uqinisekiso loMgangatho kunye noVavanyo oluQolileyo

Yonke ijoyinti ejikelezayo idlula kwinkqubo yokufaneleka enamanqanaba amaninzi ngaphambi kokuba ithunyelwe:

6.1 Uvavanyo lokuSebenza kweRF (100% yeeyunithi)

• Ilahleko ye-VSWR kunye nokufakwa kwayo ilinganiswa kuluhlu olupheleleyo lweefrikhwensi (1–5.25 GHz) kuma-101 points
• Ukuzahlula kulinganiswa phakathi kwazo zonke iipaya zetshaneli
• Zonke iimvavanyo ezenziwe kwiimeko ezizinzileyo nezitshintshatshintshayo (ezijikelezayo kwi-30 RPM)

6.2 Umlinganiselo Wozinzo Lwesigaba

• Ukwahluka kwesigaba kubhalwe ngaphezulu kwe-10 ejikelezayo rhoqo
• Idatha ingeniswe kwi-1° increments (amanqaku angama-3600 ngetshaneli nganye)

6.3 Uvavanyo lweMishini

• I-torque ilinganiswe kwi -40°C, +25°C, kunye ne +70°C
• Ukuqalisa kulinganiswa kwi-interface ejikelezayo
• Uvavanyo lwesampulu yomjikelo wobomi: iiyunithi ezikhethwe ngokungacwangciswanga kwi-5 yezigidi zeerandi zokunyamezela

6.4 Uvavanyo loxinzelelo lwendalo (isiseko sesampulu)

• Ukujikeleza kwe-thermal: -50°C ukuya ku-+85°C, imijikelo eli-10, ukuhlala iiyure ezi-2
• Ubushushu obufumileyo: 95% RH kwi +40°C kangangeeyure ezingama-48
• Ukungcangcazela: 5g RMS, 10–500 Hz, nge-MIL-STD-810 nganye

7. Kutheni Ukhetha Le Rotary Joint

• Ukuguquguquka okungaqhelekanga – Awunyanzelwanga ukuba wenze isivumelwano esingekho sesikweni. Siyazivumelanisa nenkqubo yakho, hayi okuchaseneyo.
• Ulawulo lomgangatho oluqinileyo – Zonke iinkcukacha ziyaqinisekiswa. Akukho manani “aqhelekileyo” ezibalo. Iyunithi nganye ithunyelwa nengxelo yovavanyo.
• Ubomi obude bokusebenza – ubuncinane be-5 yezigidi zeerandi buqinisekisa amashumi eminyaka eenkonzo kwizicelo eziqhelekileyo ezijikelezayo.
• Ubunkokeli bozinzo lwesigaba – ±2° kwiindlela ezintathu abuqhelekanga kweli nqanaba lokusebenza kwamaxabiso.
• Inkxaso yobugcisa – Iqela lobunjineli libonelela ngoncedo lokudibanisa, iimodeli ze-3D, kunye nokuvunywa kokuzoba okwenziwe ngokwezifiso.