Izinhlelo zevidiyo ezisetshenziswa kabanzi yi-Ingiant Medium Frequency Slip-Ring

1. Ukubuka Konke Komkhiqizo

Lo mbhalo uchaza ijoyinti elijikelezayo elinomjikelezo ophezulu elingajwayelekile, elenziwe ngokwezifiso elenzelwe ukudluliselwa okuqhubekayo kwezibonakaliso ze-RF kuzo zonke izixhumi ezijikelezayo. Idivayisi isekela iziteshi ezintathu ezizimele ze-50Ω ebangeni lemvamisa engu-1–5.25GHz, okwenza ifaneleke kuma-radar, ukuxhumana ngesathelayithi, amabhentshi okuhlola impi kagesi, izinhlelo zokubeka i-antenna, kanye nama-turntable okulinganisa ama-microwave.

Ngokungafani nezindandatho ezivamile zokushelela ezidlulisa amandla noma izimpawu eziphansi, leli lunga elijikelezayo ligcina ubuqotho besiginali - kufaka phakathi ukulahlekelwa kokufakwa, i-VSWR, ukuhlukaniswa, kanye nokuqina kwesigaba - kulo lonke ukujikeleza okuqhubekayo okungu-360°. Lihlanganisa inselele eyisisekelo yobunjiniyela yokugcina ukusebenza kwe-RF phakathi kwamapulatifomu amile najikelezayo ngaphandle kokusonta ikhebula, ukugoba ukukhathala, noma ukuphazamiseka kwesiginali.

2. Ithebula Eliphelele Lepharamitha

Amapharamitha Omshini Nezemvelo

3. Ukuchazwa Kobunjiniyela Kwamapharamitha Ayisihluthulelo

3.1 Ibanga Lokuvama: 1 – 5.25 GHz

Lolu hlu luhlanganisa i-L-band (1–2 GHz), i-S-band (2–4 GHz), kanye nengxenye engezansi ye-C-band (4–5.25 GHz). Izinhlelo zokusebenza ezijwayelekile zifaka:

• Ibhendi ye-L: I-GPS, i-BeiDou, i-IFF (Umngani Wokuhlonza noma Isitha), i-radar yokulawula ithrafikhi yezindiza
• I-S-band: i-radar yesimo sezulu, i-radar yokuqapha imikhumbi, izixhumanisi zokuxhumana ngesathelayithi
• I-C-band: ezinye izixhumanisi ze-TV yesathelayithi, izixhumanisi ze-microwave ezikude

Izinguqulo ezenziwe ngokwezifiso zingandisa ukumbozwa kwemvamisa kusuka ku-DC kuya ku-18 GHz, 26.5 GHz, noma ku-40 GHz, noma zinciphise ibhendi ukuze kuthuthukiswe ukulahleka kanye ne-VSWR.

3.2 Amandla Aphakathi: 10W ngesiteshi ngasinye

Isilinganiso segagasi eliqhubekayo le-10W (CW) sisebenza ngaphansi kwezimo zomthwalo ohambisanayo ekushiseni kwegumbi. Kumasignali ashukunyiswayo anemijikelezo yomsebenzi ophansi (isb., i-radar enomjikelezo womsebenzi ongu-1%), amandla aphezulu angafinyelela ama-watts angamakhulu amaningana. Ukuphathwa kokushisa kuba yinto ebalulekile ngaphezu kwe-10W, futhi izilinganiso zamandla aphezulu (50W, 100W) ziyatholakala ngokuguqulwa komklamo okwenziwe ngokwezifiso okuhlanganisa ukucwiliswa kokushisa okuthuthukisiwe kanye nokuthuthukiswa kwezinto ze-dielectric.

3.3 Ukwehluka kwe-VSWR kanye ne-VSWR

I-VSWR engu-1.5 ibhekwa njengenhle kakhulu ejoyintini elijikelezayo phezu komkhawulokudonsa we-multi-octave. Ukwehluka kwe-VSWR kubonisa ukuthi ukushintshashintsha kokulingana kwe-impedance ngesikhathi sokujikeleza. Isiteshi 1 sifinyelela ukwehluka kwe-±0.1 dB - ukubekezelelana okuqinile kakhulu okubonisa ukuqina okumangalisayo komshini kanye nokuqina kokuxhumana.

3.4 Ukulahlekelwa Nokushintshwa Kokufakwa

Ukulahlekelwa kokufakwa kuqukethe izingxenye ezintathu:

• Ukulahleka komqhubi (umphumela wesikhumba kumqhubi ophakathi kanye nesivikelo sangaphandle)
• Ukulahleka kwe-dielectric (i-PTFE noma enye i-substrate ye-microwave)
• Ukulahleka kokuthintana (ukumelana kwesixhumi esibonakalayo esijikelezayo)

Isiteshi 1: Ukulahleka okuphezulu kwe-dB okungu-1 ngokuguquguquka kwe-±0.3 dB
Isiteshi 2: Ukulahleka okuphezulu okungu-1.2 dB ngokushintshashintsha okungu-±0.15 dB

Isibalo sokwehluka sivame ukubaluleka kakhulu kunokulahlekelwa okuphelele ezinhlelweni ezishintshashintshayo. Isibonelo, ukwehluka okungu-0.15 dB kuhumushela ekushintsheni okungu-±1.7% ku-amplitude yesiginali ngokujikeleza okukodwa okugcwele - okungabalulekile ezinhlelweni eziningi ezisekelwe ku-amplitude ezifana nezihibe zokulawula ukukhuphuka okuzenzakalelayo noma ama-detector alula.

3.5 Ukuhlukaniswa: ≥50 dB

Ukuhlukaniswa kulinganiswa phakathi kwanoma yiziphi iziteshi ezimbili. Ku-50 dB okungenani, ukuvuza okuvela kuChannel 1 kuya kuChannel 2 (noma okuphambene nalokho) kunciphisa isignali engu-10W ibe ngu-0.1 mW. Leli zinga liqinisekisa:

• Ukwehlukaniswa kokudlulisela kuya kokwamukela ezinhlelweni ze-full-duplex
• I-oscillator yendawo encane kakhulu ephuma ngaphandle
• Imikhiqizo yokushintshashintsha encishisiwe ezindaweni ezithwala abantu abaningi

3.6 Ukuzinza Kwesigaba: ±2° kuya ku-±4°

Ukuzinza kwesigaba ngokusobala kuyindlela ebaluleke kakhulu yokuchaza amandla kwezinhlelo ezihambisanayo ezifana nalezi:

• Ama-loop okulinganisa uhlu olunezigaba
• Ukutholwa kwesiqondiso se-interferometric
• Ama-radar okulandelela i-Monopulse
• I-radar yokuvula okwenziwe (i-SAR)
• Abamukeli bokutholwa abahambisanayo

Ku-5.25 GHz, ushintsho lwesigaba se-±2° luhambisana nokwehluka kobude bendlela obungokoqobo obungaba:
ΔL = (Δφ / 360°) × λ = (2/360) × (299.8 / 5.25) ≈ 0.32 mm

Ukufinyelela ukuzinza kwe-±2° kudinga ukugeleza kwe-radial bearing okungcono kune-0.02 mm kanye nezindawo zokuthintana eziqondile - ubufakazi bokukhiqiza okuqinile kanye nokulawula ikhwalithi.

3.7 Kuchazwe Amapharamitha Omshini

Isivinini Sokujikeleza: 30 RPM esiphezulu
Ifanelekela ama-rotator e-antenna, ama-turntable okuhlola, ama-radar pedestals, kanye nezinzwa zokuskena kancane. Isivinini esiphezulu (kufika ku-300 RPM) siyatholakala ngama-bearings ngokwezifiso kanye nokulinganisela okuguquguqukayo.

Isikhathi Sokusebenza: okungenani ama-revolution ayizigidi ezi-5
Uma usebenza ngokuqhubekayo nge-30 RPM, lokhu kulingana nezinsuku ezingu-115 zokujikeleza okungayeki. Uma usebenzisa ngokujwayelekile ngezikhathi ezithile (isb. ihora eli-1 ngosuku nge-10 RPM), impilo yesevisi idlula iminyaka engu-80 - idlula kakhulu impilo yesevisi yomkhiqizo.

I-Torque: ≤0.6 N·m ekushiseni kwegumbi
I-torque ephansi inciphisa izidingo zemoto yokushayela, ivumela ukusetshenziswa ngezigaba ezincane noma ezinembile kakhulu zokubeka, futhi inciphisa ukukhiqizwa kokushisa okuvela ekungqubuzaneni. I-torque iyanda lapho izinga lokushisa liphezulu ngenxa yokushintsha kwe-viscosity yamafutha.

Ibanga Lokushisa: -40°C kuya ku-+70°C (okusebenza)
Lokhu kuhlangabezana nezidingo zemishini yangaphandle yezinga lezempi (MIL-STD-810) kanye neyezimboni. Ukusebenza kwezinga lokushisa eliphansi kuvunyelwe yizithambisi ezibanzi; ukusebenza kwezinga lokushisa eliphezulu kudinga ukukhethwa ngokucophelela kwezinto ze-dielectric ukuze kuvinjelwe ukuguguleka.

Isilinganiso se-IP51

• I-IP5: Ivikelwe uthuli (ukungena kothuli okulinganiselwe, akukho depositi eyingozi)
• I-IP1: Ivikelwe emanzini aconsayo aqonde phezulu

Lesi silinganiso sifanelana nezindawo zangaphakathi, izindawo zokuvala zangaphandle ezivikelekile, kanye nama-rack emishini. Izilinganiso eziphakeme (IP65, IP67) ziyatholakala ezindaweni zangaphandle, zemikhumbi, noma zasehlane.

Izinto: I-aluminium alloy ene-oxidation eqhubayo
I-Aluminium inikeza ukukhanya okulula (okubalulekile ekuhlanganisweni okuzungezayo), ukuhanjiswa okuhle kokushisa (kokushabalalisa ukushisa okuvela kumthwalo we-10W), kanye nokusebenza kahle kakhulu komshini. I-oxidation eqhubayo iqinisekisa ukuhanjiswa kukagesi okuphezulu kwesisekelo se-RF ngenkathi inikeza ukumelana nokugqwala okuyisisekelo.

4. Izicelo Ezijwayelekile

4.1 Izinhlelo zeRadar Ezisekelwe Emhlabathini

Kusetshenziswa phakathi kwe-transceiver engashintshi kanye ne-antenna array ejikelezayo. Iziteshi ezintathu zisekela ukudluliselwa ngasikhathi sinye, ukwamukelwa, kanye ne-calibration loop.

4.2 Izisekelo ze-Antenna zokuxhumana ngesathelayithi

Igcina ubuqotho besixhumanisi se-RF ngesikhathi sokulandelela okuqhubekayo kwesathelayithi. Ukuzinza kwesigaba kuthinta ngqo izinga lamaphutha okuguquguquka (i-MER) kanye nezinga lamaphutha e-bit (i-BER).

4.3 Amabhentshi Okuhlola Empi Ye-elekthronikhi (EW)

Izilingisi zokuhambisa ingozi ezijikelezayo zidinga isigaba esizinzile kanye nobukhulu kuzo zonke iziteshi eziningi zokulingisa i-angle-of-arrival (AOA).

4.4 Imishini Yezokwelapha Yama-microwave

Amakhanda okuthwebula izithombe noma okwelapha ajikelezayo (isb., izinhlelo ze-microwave hyperthermia) adinga ukulethwa kwe-RF okuthembekile ngaphandle kokukhathala kwekhebula.

4.5 Ukushisa Kwe-Microwave Yezimboni

Amajoyinti ajikelezayo avumela ukucutshungulwa okuqhubekayo kwezinto ezisetshenziswa kuma-oven e-microwave noma ezinhlelweni zokomisa.

4.6 Ama-Turntable Okuhlola Nokulinganisa

Amakamelo okulinganisa amaphethini e-antenna asebenzisa amalunga ajikelezayo ukuze ondle i-antenna evivinywayo (AUT) ngenkathi ejikeleza.

5. Amakhono Okwenza Ngokwezifiso Angewona Ajwayelekile

Lo mkhiqizo uklanywe ngokusobala njengeplatifomu eyenziwe ngokwezifiso. Amapharamitha alandelayo angashintshwa ngokwezidingo zamakhasimende:

6. Ukuqinisekiswa Kwekhwalithi Nokuhlolwa Okuqinile

Ijoyinti ngalinye elijikelezayo lidlula enkambisweni yokufaneleka enezigaba eziningi ngaphambi kokuthunyelwa:

6.1 Ukuhlolwa Kokusebenza Kwe-RF (100% wamayunithi)

• Ukulahlekelwa yi-VSWR kanye nokufakwa kulinganiswa kububanzi obugcwele bemvamisa (1–5.25 GHz) kumaphuzu ayi-101
• Ukuhlukaniswa kulinganiswa phakathi kwazo zonke iziteshi ezimbili
• Zonke izivivinyo ezenziwe ngezimo eziguquguqukayo neziguquguqukayo (ezijikelezayo ku-30 ​​RPM)

6.2 Ukulinganisa Ukuqina Kwesigaba

• Ukwehluka kwesigaba kuqoshwe ngaphezulu kokujikeleza okuqhubekayo okungu-10
• Idatha ilodwe ku-1° increments (amaphuzu angu-3600 ngesiteshi ngasinye)

6.3 Ukuhlolwa Kwemishini

• I-torque ilinganiswa ku--40°C, +25°C, kanye no-+70°C
• Ukugijima kukalwe esibonakalayo esijikelezayo
• Ukuhlolwa kwesampula yomjikelezo wokuphila: amayunithi akhethwe ngokungahleliwe ukuze agijime ngokuguquguquka okungu-5 million

6.4 Ukuhlolwa Kokucindezeleka Kwemvelo (isisekelo sesampula)

• Ukujikeleza kokushisa: -50°C kuya ku-+85°C, imijikelezo eyi-10, ukuhlala amahora ama-2
• Ukushisa okumanzi: 95% RH ku-+40°C amahora angu-48
• Ukudlidliza: 5g RMS, 10–500 Hz, nge-MIL-STD-810 ngayinye

7. Kungani Ukhetha Le Rotary Joint

• Ukuguquguquka okungekhona okujwayelekile – Awuphoqelekile ukuba wenze isivumelwano esingekho emthethweni. Siyazivumelanisa nohlelo lwakho, hhayi okuphambene nalokho.
• Ukulawulwa kwekhwalithi okuqinile - Yonke imininingwane iyaqinisekiswa. Azikho izibalo "ezijwayelekile". Iyunithi ngayinye ithunyelwa nombiko wokuhlolwa.
• Isikhathi eside sokusebenza – okungenani ama-revolution ayizigidi ezi-5 aqinisekisa amashumi eminyaka esevisi ezinhlelweni ezijwayelekile ezijikelezayo.
• Ubuholi bokuzinza kwesigaba – ±2° kuzo zonke iziteshi ezintathu akuvamile kuleli qophelo lokusebenza kwentengo.
• Usekelo lobuchwepheshe - Ithimba lobunjiniyela linikeza usizo lokuhlanganisa, amamodeli e-3D, kanye nokuvunyelwa kokudweba okwenziwe ngokwezifiso.