Ingiant Medium Frequency Slip-Ring siv dav hauv Video Systems

1. Txheej txheem cej luam ntawm cov khoom

Daim ntawv no piav qhia txog ib qho tsis yog tus qauv, kev tsim kho tshwj xeeb siab-zaus rotary sib koom ua ke tsim los rau kev xa cov teeb liab RF txuas ntxiv mus thoob plaws cov interfaces tig. Lub cuab yeej txhawb nqa peb txoj kab 50Ω ywj pheej hla 1–5.25GHz zaus ntau yam, ua rau nws tsim nyog rau radar, kev sib txuas lus satellite, lub rooj sib tw ua tsov rog hluav taws xob, cov kab ke antenna, thiab cov turntables ntsuas microwave.

Tsis zoo li cov nplhaib sib nqus ib txwm muaj uas xa hluav taws xob lossis cov teeb liab qis, qhov sib koom ua ke no khaws cov teeb liab kom ruaj khov - suav nrog kev poob ntawm kev ntxig, VSWR, kev cais tawm, thiab kev ruaj khov ntawm theem - thoob plaws kev sib hloov 360 °. Nws txuas cov teeb meem tseem ceeb ntawm kev tswj hwm kev ua tau zoo ntawm RF ntawm cov platforms ruaj khov thiab tig yam tsis muaj kev sib ntswg cable, kev qaug zog khoov, lossis kev cuam tshuam teeb liab.

2. Ua tiav cov lus qhia parameter

Cov Txheej Txheem Mechanical & Environmental

3. Kev Txhais Lus Txog Kev Tsim Kho ntawm Cov Qauv Tseem Ceeb

3.1 Zaus Ntau: 1 – 5.25 GHz

Cov kab no suav nrog L-band (1–2 GHz), S-band (2–4 GHz), thiab qhov qis dua ntawm C-band (4–5.25 GHz). Cov ntawv thov ib txwm muaj xws li:

• L-band: GPS, BeiDou, IFF (Tus Phooj Ywg lossis Tus Yeeb Ncuab Txheeb Xyuas), radar tswj kev khiav tsheb hauv huab cua
• S-band: radar huab cua, radar saib xyuas nkoj, kev sib txuas lus satellite downlinks
• C-band: qee qhov satellite TV uplinks, ntev microwave txuas

Cov qauv kev cai tuaj yeem txuas ntxiv qhov kev pab them nqi zaus los ntawm DC mus rau 18 GHz, 26.5 GHz, lossis 40 GHz, lossis nqaim qhov band kom zoo dua qhov poob thiab VSWR.

3.2 Lub zog nruab nrab: 10W ib channel

Qhov ntsuas nthwv dej tas mus li 10W (CW) siv tau rau hauv cov xwm txheej thauj khoom sib phim ntawm qhov kub thiab txias hauv chav. Rau cov teeb liab pulsed nrog lub voj voog ua haujlwm tsawg (piv txwv li, radar nrog 1% lub voj voog ua haujlwm), lub zog siab tshaj plaws yuav ncav cuag ntau pua watts. Kev tswj hwm thermal ua qhov tseem ceeb tshaj 10W, thiab qhov ntsuas hluav taws xob siab dua (50W, 100W) muaj los ntawm kev hloov kho tsim tshwj xeeb suav nrog kev txhim kho cua sov thiab kev txhim kho cov khoom siv dielectric.

3.3 VSWR thiab VSWR Kev Hloov Pauv

Tus VSWR ntawm 1.5 yog suav tias zoo heev rau qhov sib koom ua ke ntawm ntau lub bandwidth octave. Qhov sib txawv ntawm VSWR qhia txog qhov kev sib phim impedance hloov pauv li cas thaum lub sijhawm sib hloov. Channel 1 ua tiav qhov sib txawv ntawm ± 0.1 dB - qhov kev kam rau siab heev uas qhia txog kev sib koom ua ke ntawm cov khoom siv thiab kev ruaj khov ntawm kev sib cuag.

3.4 Kev Poob Ntxig thiab Kev Hloov Pauv Kev Poob

Kev poob ntawm kev ntxig muaj peb yam khoom:

• Kev poob ntawm tus neeg coj (qhov cuam tshuam ntawm daim tawv nqaij hauv nruab nrab ntawm tus neeg coj thiab lub tsho sab nraud)
• Kev poob dielectric (PTFE lossis lwm yam microwave substrate)
• Kev poob ntawm kev sib cuag (kev sib hloov ntawm qhov sib txuas)

Channel 1: 1 dB max poob nrog ± 0.3 dB variation
Channel 2: 1.2 dB max poob nrog ± 0.15 dB variation

Tus lej hloov pauv feem ntau tseem ceeb dua li qhov poob tag nrho hauv cov kab ke dynamic. Piv txwv li, qhov hloov pauv 0.15 dB txhais tau tias qhov hloov pauv ± 1.7% hauv qhov loj ntawm lub teeb liab hla ib qho kev sib hloov tag nrho - tsis tseem ceeb rau feem ntau cov kab ke raws li qhov loj xws li cov voj voog tswj kev nce qib lossis cov khoom siv yooj yim.

3.5 Kev rho tawm: ≥50 dB

Kev rho tawm yog ntsuas ntawm ob txoj kab. Ntawm 50 dB yam tsawg kawg nkaus, qhov xau ntawm Txoj Kab 1 mus rau Txoj Kab 2 (lossis rov qab) ua rau lub teeb liab 10W tsis muaj zog mus rau 0.1 mW. Qib no ua kom ntseeg tau tias:

• Kev rho tawm ntawm kev xa mus rau kev txais hauv cov kab ke puv-duplex
• Qhov tsawg kawg nkaus oscillator hauv zos bleed-through
• Cov khoom siv intermodulation txo qis hauv ntau qhov chaw nqa khoom

3.6 Kev Ruaj Ntseg Theem: ± 2 ° txog ± 4 °

Kev ruaj khov ntawm theem yog qhov tseem ceeb tshaj plaws rau cov txheej txheem sib xws xws li:

• Cov voj voog calibration phased array
• Kev nrhiav kev taw qhia ntawm Interferometric
• Monopulse tracking radar
• Radar qhov qhib hluav taws xob (SAR)
• Cov neeg txais kev kuaj xyuas sib xws

Ntawm 5.25 GHz, qhov kev hloov pauv theem ±2° sib raug rau qhov kev hloov pauv ntawm txoj kev ntev ntawm kwv yees li:
Luas = (Δφ / 360 °) × λ = (2/360) × (299.8 / 5.25) ≈ 0.32 mm

Kev ua tiav ± 2 ° kev ruaj khov xav tau cov kabmob radial runout zoo dua 0.02 hli thiab qhov chaw sib cuag raug - ib qho pov thawj rau kev tsim khoom thiab kev tswj xyuas zoo.

3.7 Cov Kev Ntsuas Txog Kev Siv Tshuab Piav Qhia

Kev Tig Ceev: 30 RPM siab tshaj plaws
Haum rau cov antenna rotators, test turntables, radar pedestals, thiab slow-scanning sensors. Kev ceev siab dua (txog li 300 RPM) muaj los ntawm kev cai bearings thiab dynamic balancing.

Lub Neej Ua Haujlwm: 5 lab revolutions yam tsawg kawg nkaus
Yog siv 30 RPM tas mus li, qhov no yuav siv tau 115 hnub tsis tu ncua. Yog siv ib ntus xwb (piv txwv li, siv 1 teev ib hnub ntawm 10 RPM), lub neej siv yuav siv tau ntau tshaj 80 xyoo - ntau tshaj qhov siv tau ntawm lub neej siv ntawm cov khoom no.

Torque: ≤0.6 N·m ntawm chav tsev kub
Qhov torque qis txo qhov kev xav tau ntawm lub cev muaj zog tsav, ua rau siv tau nrog cov theem me me lossis siab-precision, thiab txo qhov thermal generation los ntawm kev sib txhuam. Torque nce ntxiv ntawm qhov kub thiab txias heev vim yog kev hloov pauv ntawm cov roj viscosity.

Kub thiab txias: -40°C txog +70°C (ua haujlwm)
Qhov no ua tau raws li cov cai ntawm cov tub rog (MIL-STD-810) thiab cov khoom siv sab nraum zoov hauv kev lag luam. Kev ua haujlwm kub qis yog ua tau los ntawm cov roj nplua nyeem ntau yam; kev ua haujlwm kub siab yuav tsum tau xaiv cov khoom siv dielectric kom zoo kom tiv thaiv kev hloov pauv.

Kev Ntsuas IP51

• IP5: Tiv thaiv plua plav (tsis muaj plua plav nkag, tsis muaj cov khoom phom sij)
• IP1: Tiv thaiv dej ntws ntsug

Qhov kev ntsuas no haum rau cov chaw nyob sab hauv tsev, cov chaw nkaum sab nraum zoov, thiab cov txee khoom siv. Cov kev ntsuas siab dua (IP65, IP67) muaj rau cov chaw nyob sab nraum zoov, nkoj, lossis chaw nyob hauv hav zoov.

Khoom siv: Aluminium alloy nrog conductive oxidation
Txhuas muab qhov sib dua (qhov tseem ceeb rau kev sib dhos tig tau), kev ua kom sov zoo (rau kev tso cua sov tawm ntawm 10W load), thiab kev siv tshuab zoo heev. Kev ua kom cov pa oxygen ua kom muaj kev ua kom muaj hluav taws xob ntawm qhov chaw rau RF grounding thaum muab kev tiv thaiv corrosion yooj yim.

4. Cov Ntawv Thov Ib Txwm Muaj

4.1 Cov Tshuab Radar Hauv Av

Siv ntawm qhov chaw nres tsheb transceiver thiab qhov chaw tig antenna array. Peb txoj kev txhawb nqa kev xa, kev txais, thiab kev ntsuas tib lub sijhawm.

4.2 Cov Rooj Sib Txuas Lus Antenna Satellite

Tswj kev sib txuas RF thaum lub sijhawm taug qab satellite tas mus li. Kev ruaj khov ntawm theem ncaj qha cuam tshuam rau qhov yuam kev hloov pauv (MER) thiab qhov yuam kev me me (BER).

4.3 Rooj Sib Tw Ntsuas Kev Ua Rog Hluav Taws Xob (EW)

Cov cuab yeej simulation kev hem thawj uas tig tau xav tau theem ruaj khov thiab qhov loj ntawm ntau txoj hauv kev rau kev simulation lub kaum sab xis (AOA).

4.4 Cov Khoom Siv Kho Mob Microwave

Cov taub hau thaij duab lossis kho mob uas tig tau (piv txwv li, cov tshuab microwave hyperthermia) xav tau kev xa khoom RF txhim khu kev qha yam tsis muaj kev qaug zog ntawm cov xov hlau.

4.5 Kev Siv Hluav Taws Xob Microwave Rau Kev Lag Luam

Cov pob qij txha tig ua rau muaj kev ua cov khoom siv tas mus li hauv lub qhov cub microwave lossis lub tshuab ziab khaub ncaws.

4.6 Cov Rooj Sib Tw Ntsuas thiab Ntsuas

Cov chav ntsuas tus qauv antenna siv cov pob qij txha rotary los pub lub antenna raws li kev sim (AUT) thaum tig.

5. Kev Muaj Peev Xwm Kho Kom Haum Rau Cov Neeg Tsis Yog Tus Qauv

Cov khoom no yog tsim tshwj xeeb los ua ib lub platform uas tsim tshwj xeeb. Cov kev teeb tsa hauv qab no tuaj yeem hloov kho raws li cov neeg siv khoom xav tau:

6. Kev Ntsuam Xyuas Zoo & Kev Ntsuas Zoo

Txhua qhov sib koom ua ke tau dhau los ntawm ntau theem kev tsim nyog ua ntej xa khoom:

6.1 Kev Ntsuas Kev Ua Haujlwm RF (100% ntawm cov units)

• VSWR thiab kev poob ntawm kev ntxig ntsuas thoob plaws qhov ntau zaus tag nrho (1–5.25 GHz) ntawm 101 cov ntsiab lus
• Kev rho tawm ntsuas ntawm txhua tus khub channel
• Txhua qhov kev sim ua tiav ntawm qhov zoo li qub thiab dynamic (tig ntawm 30 RPM) cov xwm txheej

6.2 Kev Ntsuas Kev Ruaj Ntseg Theem

• Kev hloov pauv ntawm theem tau kaw tseg dhau 10 qhov kev sib hloov tas mus li
• Cov ntaub ntawv sau tseg ntawm 1° increments (3600 cov ntsiab lus ib channel)

6.3 Kev Ntsuas Tshuab

• Torque ntsuas ntawm -40°C, +25°C, thiab +70°C
• Kev khiav tawm ntsuas ntawm qhov sib hloov pauv
• Kev kuaj cov qauv ntawm lub neej voj voog: cov chav nyob xaiv random rau 5 lab lub kiv puag ncig kev khiav ntev

6.4 Kev Tshuaj Xyuas Kev Nyuaj Siab Ib puag ncig (piv txwv)

• Kev voj voog cua sov: -50 ° C txog + 85 ° C, 10 lub voj voog, 2-teev nyob
• Kub ntub: 95% RH ntawm +40 ° C rau 48 teev
• Kev co: 5g RMS, 10–500 Hz, ib qho MIL-STD-810

7. Vim Li Cas Thiaj Xaiv Qhov Kev Sib Koom Tes Rotary No

• Kev hloov pauv tsis raws li tus qauv - Koj tsis raug yuam kom ua raws li qhov kev pom zoo uas twb muaj lawm. Peb hloov kho rau koj lub kaw lus, tsis yog rov qab.
• Kev tswj xyuas zoo - Txhua yam kev qhia tshwj xeeb raug txheeb xyuas. Tsis muaj cov nqi "ib txwm muaj". Txhua lub tshuab xa nrog daim ntawv qhia kev sim.
• Lub neej ua haujlwm ntev - tsawg kawg 5 lab lub kiv puag ncig ua kom ntseeg tau tias muaj ntau xyoo ntawm kev pabcuam hauv cov ntawv thov tig.
• Kev ua thawj coj ntawm theem ruaj khov - ± 2 ° hla peb txoj kev tsis tshua muaj nyob rau ntawm qhov kev ua tau zoo ntawm tus nqi no.
• Kev txhawb nqa kev txawj ntse - Pab pawg engineering muab kev pab cuam kev koom ua ke, 3D qauv, thiab kev pom zoo kos duab.