Ni ukubera iki Abashinzwe Itumanaho rya Gisirikare ba Satelite basaba ibikoresho bya EMC byo hejuru bya Aluminiyumu?

Imashini zikoresha itumanaho rya gisirikare zigendanwa (SatCom) zikora nka tactique C4ISR (Amabwiriza, Igenzura, Itumanaho, Mudasobwa, Intelligence, Igenzura, na Reconnaissance) ihuriro ryintambara zigezweho. Ibi bice bitunganya umurongo mwinshi wibanga ryibanga ryamakuru, ibimenyetso byinshi bya satelite ya RF (X-band, Ku-band, Ka-band), hamwe nuburyo bwitumanaho bwitumanaho. Ariko rero, bagomba gukorera mubidukikije bikabije bya electromagnetique birangwa no gukwirakwiza ingufu za Radar zifite ingufu nyinshi, ibyuka byangiza imyuka myinshi, kwivanga kuri radiyo-radiyo (RFI), hamwe n’ingufu ziyobowe na Electronic Warfare (EW) iterabwoba.

Byongeye kandi, ibikoresho bya elegitoroniki bya SatCom bigomba kurokoka ibintu bikomeye byo mu rwego rwo hejuru bya Electromagnetic Pulse (HEMP) kandi byujuje ibyangombwa bisabwa na TEM PE ST umutekano w’umutekano kugirango wirinde ko amakuru atabigenewe akoresheje amashanyarazi abangamiwe. EMC ikingira cyane ya aluminiyumu - ihuza imiyoboro ya aluminiyumu yubaka cyane (5000/6000) hamwe na chromate idafite imiyoboro ihindagurika hamwe nifu yihariye ya poro / irangi ryamazi - itanga inzitizi ikomeye ya electroniki ya magnetiki. Batanga EMI yo hejuru (> 80 dB - 100 dB hejuru ya 10 kHz - 18 GHz), guhora amashanyarazi adafite imbaraga nke, no kurengera ibidukikije bikabije kubikoresho byitumanaho rya gisirikare byoroshye.

Umuyoboro mugari wa Electromagnetic Interference (EMI) & RFI Ibyago

Amapikipiki ya gisilikare yubatsemo ingufu za RF zifite ingufu nyinshi, ibyuma bitunganya ibimenyetso, hamwe na modem ya satelite ikorera hafi. Uruzitiro rudafunze rufite ikibazo cyo kwangirika gukabije:

In-Band Interference & Urusaku rwo hejuru: Ububiko bwa RF budafunze buzamura urusaku rwakira amajwi, bigatuma gutakaza paki, kugabanuka kw'ibimenyetso, no kugabanya imiyoboro ya satelite.

~!phoenix_var78_0!~ ~!phoenix_var78_1!~

TEM PE ST Yumva amajwi & Ibisabwa byo gukingira HEMP

Ibikorwa bya gisirikare bigezweho bigereranya umutekano uhumanya ikirere no gukomera kwa pulse:

PE TEM Imbaraga zubutasi zirwanya zirashobora guhagarika no kongera kubaka amakuru yuburyo bworoshye kuva mumirometero ukoresheje antenne yunguka cyane.

HEMP Kugabanya Inzibacyuho: Ibihe Byinshi-Byinshi bya Electromagnetic Pulse ibyabaye bitanga ingufu za E1 icyiciro cyumuriro w'amashanyarazi kizamuka (~ 50 kV / m muri nanosekond). Uruzitiro rugomba gutanga imbaraga zo gukingira cyane kugirango birinde microchip gate-oxyde isenyuka no kwangirika kwumubiri

Kwemeza Tekinike & Ibipimo ngenderwaho

Imikorere ya matrix ikurikira iragereranya-EMC ikingira ikingira aluminiyumu iringaniye ninganda zisanzwe zikoreshwa mubikorwa bya gisirikare bya SatCom:

Ibyingenzi Byumwuga Mubyiza bya SatCom Trailer Kwishyira hamwe

Ibibazo

Ikibazo1: Kuki bidashoboka ko aluminiyumu isanzwe ikoreshwa mu kigo cya gisirikare cya EMC?

Igisubizo: Anodizing ikora aluminium oxyde (Al₂O₃) irinda amashanyarazi. Ikibaho cyiziritse gisenya amashanyarazi kumurongo, bikabuza uruzitiro gukora akazu ka Faraday gahoraho no gusenya imikorere yacyo yo gukingira EMI.

PE

. Igisubizo Ibi bihagarika imyuka ya elegitoroniki itabigenewe iterwa na sisitemu yimbere yimbere, ikabuza ubwenge bwabanzi gutega amatwi ibimenyetso byibanga.

Q3: Ni irihe tandukaniro riri hagati ya MIL-DTL-5541 Icyiciro cya 1A nicyiciro cya 3 cyo guhinduranya?

Igisubizo: Icyiciro cya 1A ni igicucu kinini cyo guhinduranya cyakozwe cyane cyane kugirango kirinde ruswa cyane aho amashanyarazi adakenewe. Icyiciro cya 3 ni micro-yoroheje ikozwe muburyo bwihariye bwo kurwanya amashanyarazi (≤ 2.5 mΩ / sq), bigatuma iba itegeko ryateganijwe kuri EMC ikingira ikingira.

Q4: Nigute uruzitiro rwa aluminiyumu rushobora kwihanganira guhangana na pulses zo hejuru (HEMP)?

Igisubizo: Bakora nk'ingabo ikomeza ya Faraday. Iyo imbaraga nyinshi 50 kV / m HEMP impiswi igira ingaruka kumurongo, amashanyarazi menshi yumuriro wa aluminiyumu hamwe nudukingirizo twa seamage yerekana kandi akwirakwiza ingufu ziyongera kubutaka mbere yuko yinjira no gusenya ibikoresho bya elegitoroniki.

Q5: Ese amarangi atwara kuri flangine ya aluminiyumu azangirika bitewe na galvanic reaction hamwe na gasike ya EMI?

Igisubizo: Ntabwo niba byasobanuwe neza. Kwangirika kwa Galvanic bibaho mugihe ibyuma bifite imbaraga zitandukanye zamashanyarazi bikora mubihe bitose. Gukoresha nikel yuzuye cyangwa yometseho ifeza yometseho umuringa ujyanye nubushobozi bwa electrochemicique ya aluminium na gaze ya beryllium-umuringa birinda ruswa.

Umwanzuro

EMC ikingira cyane aluminiyumu yubatswe ningirakamaro kuri romoruki zikoresha itumanaho rya gisirikare, zitanga uburinzi bukomeye bwo kwirinda iterabwoba rya elegitoroniki, kubona amakuru ya TEM PE ST, no kwemeza itumanaho ryizewe.

Kugirango uhindure ibikoresho byatoranijwe kuri tekinike ya SatCom yimodoka:

Kugaragaza MIL-DTL-5541 Ubwoko bwa II Icyiciro cya 3 Imyitozo yo Guhindura Imyitwarire: Menya neza ko impande zose zishyingiranwa, ingingo zifatika, hamwe na chassis imbere imbere bikomeza guhangana nubutaka buke (≤ 2.5 mΩ).

Tegeka MIL-STD-188-125-1 HEMP & TEM PE ST Shielding kubahiriza: Kugenzura niba ibishushanyo mbonera bigera kuri ≥ 90 dB ikingira neza muri 10 kHz - 18 GHz.

Hitamo imbaraga nyinshi zo mu mazi zo mu mazi ( 5052-H32 cyangwa 6061-T6): Huza ibimera bya aluminiyumu yubatswe hamwe na Chemical Agent Resistant Coatings (CARC) hejuru yuburyo bwo guhindura ibintu kugirango umenye neza kandi urambe.