Lub hwj chim thiab cov ntaub ntawv hlais lub nplhaib xa ob lub zog hluav taws xob thiab kev sib txuas lus hla kev sib koom ua ke, yog li lub tshuab tuaj yeem tig yam tsis muaj kev txwv thiab tsis txhob twist nws cov cables. Cov lus teb luv luv rau cov lus nug ib txwm muaj yog: ib lub rooj sib txoos tuaj yeem nqa tau ob qho tib si. Dab tsi txiav txim siab seb nws puas ua haujlwm hauv thaj chaw tsis yog tus naj npawb ntawm circuits. Nws yog yuav ua li cas lub hwj chim thiab teeb liab txoj kev yog teem, shielded, grounded, thiab routed nyob rau hauv ib tug rotating interface.
Lub zog thiab cov ntaub ntawv coj txawv txawv heev. Lub nplhaib fais fab tuaj yeem nqa kaum tawm amps lossis hloov mus rau thiab tawm los ntawm lub cev muaj zog tsav, thaum lub Gigabit Ethernet khub nqa millivolt- theem hloov pauv uas nyob ntawm qhov ruaj khov impedance. Muab lawv ze dhau yam tsis muaj tus qauv tsim thiab cov tsos mob tshwm sim raws li CRC yuam kev, poob pob ntawv, suav encoder uas dhia, nyeem analogs uas drift, lossis kev sib txuas lus tsis sib xws uas nyuaj rau tsim tawm ntawm lub rooj ntev zaum. Lub nplhaib sib koom ua ke txhim khu kev qha yog tsim nyob ib puag ncig hom teeb liab, theem tam sim no thiab qhov hluav taws xob, kev sib hloov ceev, lub voj voog ua haujlwm, hauv av, tiv thaiv, cable routing, thiab qhov chaw ua haujlwm tiag tiag.
Ib lub nplhaib ntiv nplhaib tuaj yeem nqa tau ob lub zog thiab cov ntaub ntawv?
Yog lawm. Lub rooj sib dhos tsim tau zoo tuaj yeem sib txuas lub zog thiab cov ntaub ntawv hauv ib qho kev sib hloov. Nyob ntawm tus neeg muag khoom, koj yuav pom qhov no hu ua lub hwj chim thiab cov ntaub ntawv swb nplhaib, lub zog sib xyaw ua ke thiab cov teeb liab ntiv nplhaib, lossis tsuas yog ib lub nplhaib kev cai ua rau kev sib xyaw ua ke thiab kev sib txuas lus.
Kev sib xyaw ua ke ob tsis zoo ib yam li kev ntxiv ntau lub voj voog, txawm li cas los xij. Lub nplhaib fais fab tuaj yeem nqa tam sim no ntau dua, qhov hluav taws xob ntau dua, lossis hloov suab nrov ntawm cov tsav thiab cov contactors. Cov teeb liab hluav taws xob feem ntau xav tau qhov impedance ruaj khov, tsis tshua muaj suab nrov, tiv thaiv, thiab nyob deb ntawm cov suab nrov ntawd. Ib lub nplhaib ib pawg yuav tsum txaus siab rau ob qho kev xav tau ib zaug.
Ib qho kev sib xyaw ua ke feem ntau yog hu rau thaum:
- lub tshuab xav tau tas li, tsis muaj kev sib hloov;
- lub zog thiab kev sib txuas lus yuav tsum dhau los ntawm tib lub axis;
- twisting los yog coiling cables tsis tau txais;
- tsis muaj chaw rau ob qhov sib cais sib txuas; los yog
- ib qho kev sib koom ua ke ua kom yooj yim rau kev xaim thiab kev pabcuam.
Cov ntawv thov muaj xws li kev lag luam robots thiab indexing ntxhuav, ntim thiab wrapping tshuab, cranes thiab rotating platforms, radar thiab kav hlau txais xov positioners, yias - qaij soj ntsuam lub taub hau, thiab kev kho mob imaging gantries.
Vim li cas lub hwj chim thiab cov ntaub ntawv Circuits xav tau kev sib cais kom zoo
Lub zog thiab cov ntaub ntawv tuaj yeem sib koom ib lub nplhaib plam, tab sis ob qho tib si yuav tsum tsis txhob raug kho tib yam. Feem ntau ntawm kev siv zog tsim mus rau hauv kev tiv thaiv cov teeb liab txoj kev los ntawm cov hluav taws xob suab nrov lub hwj chim txoj kev tsim.
EMI thiab RFI los ntawm Power Circuits
Siab- cov nplhaib tam sim no, lub cev muaj zog tsav, cov tsav tsheb sib txawv (VFDs), cov solenoids, thiab cov khoom siv hluav taws xob hloov pauv tag nrho cov hluav taws xob hluav taws xob cuam tshuam. Ib qho VFD hloov ntawm ob peb kilohertz, piv txwv li, txhaj cov suab nrov nrov rau cov neeg nyob ze. Yog hais tias ib tug rhiab cov ntaub ntawv kab qhia qhov chaw nrog lub Circuit Court, lub suab nrov yuav ua tau ob peb nyob rau hauv thiab corrupt lub teeb liab.
Qhov tshwm sim yog nyob ntawm qhov twg lub nplhaib ntiv nplhaib zaum. Nyob rau hauv ib qho kev ntsuas ntsiag to, ib qho kev cuam tshuam me me yuav dhau los tsis pom. Ntawm qhov kev txav chaw -tswj axis ntawm ib sab ntawm lub tsav, qhov kev cuam tshuam zoo ib yam tuaj yeem txhais tau tias CAN thav duab uas ua tsis tiav lawv cov checksum, Ethernet retransmissions uas throttle throughput, encoder edges uas jitter, los yog ib tug maub los uas faults tawm ib nrab ntawm - voj voog.
Crosstalk ntawm Channel
Crosstalk yog lub zog xau los ntawm ib lub voj voog mus rau ib tus neeg nyob ze. Nws tseem ceeb tshaj plaws thaum lub hwj chim conductors, Ethernet khub, kab encoder, analog leads, thiab cov xov hlau tswj tau ntim rau hauv ib qho kev sib hloov sib hloov. Kev xyaum zoo txo nws los ntawm qhov sib txawv ntawm lub cev, sib koom ua ke zoo sib xws hauv Circuit Court ua ke, kev tiv thaiv, kev huv hauv av, thiab kev mob siab rau cov teeb meem tseem ceeb tshaj plaws. Peb sau ntawv rautiv thaiv crosstalk ntawm cov channelnkag mus tob rau ntawm qhov kev teeb tsa, tab sis lub hauv paus ntsiab lus yog qhov yooj yim: khaws cov neeg ua phem thiab cov neeg raug tsim txom sib nrug, thiab muab txhua daim thaiv npog ib txoj hauv kev rov qab los.
Cov cim sib txawv muaj qhov xav tau sib txawv
Tsis yog txhua kab ntawv cov ntaub ntawv sib npaug sib npaug. Ib qho discrete on/off teeb liab tolerates tej yam kev mob uas yuav puas precision encoder tawm tswv yim los yog Gigabit Ethernet. Gigabit Ethernet, txhais los ntawm tusIEEE 802.3 tsev neeg cov qauv, nyob ntawm twisted -pair kev ncaj ncees thiab tswj impedance, thaum CAN tsheb npav, standardized liISO 11898 Kev Tswj Xyuas Kev Lag Luam, cia siab rau kev ruaj ntseg sib txawv. Qhov no yog vim li cas lub nplhaib plam yuav tsum tau teev los ntawm hom teeb liab thiab kev ua haujlwm lub hom phiaj, tsis yog los ntawm kev suav ib leeg. Rau cov ntaub ntawv tshwj xeeb, pebEthernet swb nplhaib qhianpog cov ntsiab lus siv tau.
| Hom teeb liab | Qhov tseem ceeb tsim kev txhawj xeeb | Pom zoo txoj hlua khi hlua khi |
|---|---|---|
| Gigabit Ethernet | Twisted -pair kev ncaj ncees, kwv yees li 100 Ω impedance, ntxig thiab rov poob | Shielded, impedance-tswj khub ntawm siab siab -kev sib cuag ceev, sib cais los ntawm lub hwj chim rings |
| CAN tsheb npav / RS-485 | Ntxuav qhov sib txawv ntawm qhov sib txawv, nyob ib ncig ntawm 120 Ω kev txiav tawm, ntau- hom suab nrov | Twisted khub khaws cia ua ke, sib cais los ntawm kev hloov circuits, ntaub thaiv npog nqa los ntawm |
| Encoder tawm tswv yim | Ntug jitter thiab miscounts los ntawm cov suab nrov ua ke | Shielded khub, luv luv huv routing, ib daim ntaub thaiv npog hauv av |
| Analog sensor (mV, 4-20 mA) | Voltage drift thiab tiv tauj -cov suab nrov | Tsawg- suab nrov kub- ntawm- kub hu, tiv thaiv, nyob deb ntawm lub hwj chim |
| Video / HD-SDI | Tswj impedance ze 75 Ω, poob qis, txaus bandwidth | Coaxial los yog impedance - sib phim raws ntawm cov neeg muaj npe tshwj xeeb |
| Discrete I/O / qis - tswj ceev | Feem ntau muaj zog | Standard teeb liab rings feem ntau txaus |
Practical takeaway:npe txhua tus txheej txheem thiab nws cov ntaub ntawv tus nqi ua ntej leej twg suav rings. Cov txheej txheem tsav cov hom kev sib cuag, kev tiv thaiv, thiab cov txheej txheem sab hauv.
Tsim cov txheej txheem rau kev sib txuas lub zog thiab cov ntaub ntawv
Lub nplhaib sib koom ua ke uas muaj kev ntseeg siab yuav luag ib txwm siv ntau tshaj ib txoj kev tiv thaiv ua ke. Qhov kev sib xyaw ua ke zoo li cas yog nyob ntawm qib fais fab, hom teeb liab, qhov chaw muaj, thiab xav tau kev pab lub neej.
- Lub cev sib cais nyob rau hauv lub nplhaib pawg.Txoj kev yooj yim tshaj plaws yog ua kom siab - lub hwj chim rings deb ntawm lub teeb liab rings, pab pawg neeg zoo sib xws circuits, thiab coj lawv nyob rau hauv nyias muaj nyias txoj kev. Kev ncua deb txo qhov sib txuas. Hauv cov rooj sib txoos me me uas qhov chaw nruj, lwm txoj hauv kev hauv qab no nqa ntau lub nra.
- shielded cables.Thaum cov kab kev sib txuas lus khiav ze ntawm lub cev muaj zog, tsav tsheb, lossis siab - fais fab thaiv, ib daim thaiv kab thaiv kev cuam tshuam tawm ntawm cov teeb liab conductors. Kev tiv thaiv sab hauv lub nplhaib ntiv nplhaib yuav tsum phim rau lub tshuab seem: yog tias lub kaw lus siv cov hlua khi sab nraud ntawm lub nplhaib, txoj kev tiv thaiv feem ntau yuav tsum tau txuas ntxiv los ntawm kev sib hloov. Peb lub ntsiab lus ntawmshielding kev daws teeb meem rau kev txhim khu kev qha kis tau tus mobtaug kev los ntawm cov kev xaiv.
- Dedicated hauv av thiab ntaub thaiv npog circuits.Lub nplhaib plam tuaj yeem suav nrog cov nplhaib tshwj xeeb rau hauv av lossis thaiv kev txuas ntxiv, tswj kev sib raug zoo ntawm cov ntaub thaiv npog, cov khoom siv hauv av, thiab cov qauv tig. Txoj kev npaj tsis muaj zog hauv av tuaj yeem tshem tawm qhov txiaj ntsig ntawm kev tiv thaiv los yog tsim lub suab nrov tshiab, yog li nws yuav tsum tau tsim nyob rau hauv, tsis bolted rau.
- cais cores lossis teeb liab modules.Rau kev xav tau txoj haujlwm, lub rooj sib dhos tuaj yeem siv cov cores sib cais lossis cov khoom siv sab hauv: ib ntu rau lub zog, lwm qhov rau kev sib txuas lus. Qhov no muab kev sib cais muaj zog dua li ib qho kev sib koom ua ke thiab haum rau qhov siab tam sim no, qhov hluav taws xob siab, lossis kev ua siab ntev rau qhov tsis raug.
- RFI barriers, cov phaj sib cais, thiab cov seem kaw.Tsis yog-cov khoom sib cais, cov ntawv thaiv sab hauv, lossis cov teeb liab uas nyob ib puag ncig cais cov kev sib txuas lus ntawm lub zog. Hauv cov rooj sib txoos loj dua, qee lub teeb liab me me hauv qab lub nplhaib yog qee zaum muab tso rau hauv lub tsev ntawm lub zog loj dua lub nplhaib kom cov ntaub ntawv circuits nyob tiv thaiv.
Practical takeaway:rau kev sib xyaw ua ke siab - lub zog tam sim no thiab siab - cov ntaub ntawv ceev, cia siab tias yuav muab kev sib cais, tiv thaiv, thiab hauv av es tsis yog cia siab rau ib qho kev dag ntxias.
Yuav Qhia Li Cas Lub Hwj Chim thiab Cov Ntaub Ntawv Slip Ring
Paub txog cov qauv tsim yog ib yam; tig lub tshuab mus rau hauv cov lus qhia meej yog lwm qhov. Cov tsib kauj ruam no ua ib qho kev thov los ntawm "peb xav tau lub zog thiab Ethernet" rau ib yam dab tsi uas tus engineer tuaj yeem hais yam tsis tau twv.
- Txhais cov kab hluav taws xob.Sau cov voltage, tam sim no, AC los yog DC, nruam los yog tsis tu ncua load, inrush los yog ncov tam sim no, thiab dab tsi txhua Circuit Court drives (lub cev muaj zog, rhaub, teeb pom kev zoo, tswj). Tsis nrov lossis siab - cov kab hluav taws xob tam sim no yuav xav tau qhov dav dua, cov khoom siv loj dua, lossis cov khoom sib txuas sib txawv.
- Txheeb xyuas txhua lub teeb liab raws tu qauv.Qhia cov txheej txheem thiab nws lub hom phiaj, tsis yog "cov ntaub ntawv." Piv txwv li: 10/100 Mbps lossis Gigabit Ethernet, CAN tsheb npav, RS-485, RS-232, USB, HD-SDI, encoder, analog, lossis discrete I/O, ntxiv rau impedance, shielding, connector hom, thiab tag nrho cable ntev ntawm ob sab ntawm lub nplhaib.
- Ntsuam xyuas EMI thiab suab nrov ib puag ncig.Nco ntsoov cov tsav tsheb nyob ze, lub cev muaj zog, cov vuam, cov khoom siv hloov pauv, thiab cov kab txuas ntev ntev. Qhov chaw muaj hluav taws xob ntau dua qhov chaw, qhov thaiv ntau dua thiab kev sib cais ntawm qhov tsim xav tau, txawm tias daim ntawv teev npe luv luv.
- Paub meej tias lub hnab ntawv kho tshuab.Muab bore los yog ncej taub, txheej kab thiab qhov siab txwv, mounting qauv, rotation ceev thiab kev taw qhia, lub voj voog lub luag hauj lwm, lub neej kev pab cuam, thiab cable tawm kev taw qhia. Lub tshuab compact feem ntau xav tau kev daws teeb meem sib txawv los ntawm qhov loj los ntawm - tho qhov sib dhos.
- Tshawb xyuas kev tiv thaiv, av, kev sim, thiab ib puag ncig.Qhia meej txog kev tiv thaiv kev txuas ntxiv, lub tshuab siv hauv av, kev txheeb xyuas qhov koj xav tau, thiab cov hom phiaj ib puag ncig, suav nrog qhov ntsuas IP. CovIP code txhais hauv IEC 60529tus nqi tiv thaiv plua plav thiab dej; peb tus neeg piav qhia ntawmswb nplhaib IP ntsuam xyuasqhia tias txhua tus lej txhais li cas hauv kev xyaum.
| Qeb | Cov ntaub ntawv kom suav nrog hauv kev thov |
|---|---|
| Lub zog hluav taws xob | Voltage, tam sim no, AC los yog DC, inrush, nruam los yog intermittent, load hom |
| Cov ntaub ntawv thiab cov teeb liab | Txhua tus txheej txheem, cov ntaub ntawv tus nqi, shielded los yog unshielded, connector hom, cable ntev ua ntej thiab tom qab lub nplhaib, txaus tus nqi yuam kev |
| Neeg kho tshuab | bore los yog ncej txoj kab uas hla, OD thiab qhov siab txwv, mounting qauv, kev sib hloov ceev thiab kev taw qhia, lub luag hauj lwm voj voog, xav tau lub neej, cable tawm |
| Ib puag ncig | Sab hauv los yog sab nraum zoov, lub hom phiaj IP ntsuam xyuas, qhov kub thiab txias, kev co thiab kev poob siab, plua plav, dej, roj los yog tshuaj raug, corrosion los yog txaus ntshai- cheeb tsam xav tau |
Standard vs Custom Power thiab Data Slip Rings
Lub nplhaib ntiv nplhaib tus qauv tuaj yeem ua haujlwm tau thaum daim ntawv thov muaj lub zog hluav taws xob yooj yim, qis -ceev teeb liab, kev sib hloov nruab nrab, thiab ib puag ncig hluav taws xob huv. Tawm ntawm-- cov khoom txee txiav lub sij hawm ua cov hmoov txhuas thiab cov nqi thaum cov kev xav tau sib xws nrog tus qauv uas twb muaj lawm. Thaum lub hwj chim thiab cov ntaub ntawv rhiab yuav tsum sib qhia tib lub axis, tus tsim kev cai feem ntau them rau nws tus kheej hauv kev ntseeg tau. Cov lus hauv qab no suav nrog qhov twg txhua qhov haum, thiab peb qhov kev sib piv ntawmstandard tiv thaiv kev cai swb ringsmus los ntawm kev ua lag luam -offs hauv kev nthuav dav ntxiv.
| Qhov xwm txheej | Ib lub nplhaib ntiv nplhaib txheem yuav txaus | Ib qho kev cai tsim feem ntau zoo dua |
|---|---|---|
| Hwj chim | Tsawg mus rau nruab nrab, khoom siv huv | High tam sim no ntxiv rau VFD los yog hloov loads |
| Cov ntaub ntawv | Tsawg- ceev discrete lossis serial | Gigabit Ethernet, HD video, precision encoders |
| Sib tov | Fais fab nkaus xwb lossis cov ntaub ntawv nkaus xwb | High tam sim no thiab rhiab cov ntaub ntawv ua ke |
| Lub hnab ntawv | Standard bore, OD, thiab mounting haum | Tight los yog tsis yog -tus qauv bore, mounting, los yog cable tawm |
| Ib puag ncig | Sab hauv, huv si, qhuav | Sab nraum zoov, ntxhua khaub ncaws, plua plav, xeb, lossis thaj chaw muaj kev phom sij |
| Lub luag haujlwm | Lub teeb los yog siv tsis tu ncua | Lub voj voog ua haujlwm siab, lub neej ua haujlwm ntev |
| yuam kev kam rau ua | Qee zaum rov ua dua tau txais | Tsawg kam rau kev tso tawm lossis CRC yuam kev |
Practical takeaway:yog tias txawm tias ib kab av nyob rau sab xis - tes kem, kho qhov project raws li kev cai thiab qhia kom haum.
Engineering Review thiab Testing
Ib qho kev qhia tshwj xeeb tsuas yog tsim nyog ntau npaum li qhov kev txheeb xyuas tom qab nws. Ua ntej lub zog sib xyaw ua ke thiab cov ntaub ntawv hlaws ntiv nplhaib mus rau hauv kev pabcuam, tus qauv tsim yuav tsum tau ua pov thawj ntau dua li qhov xav tau. Ib qho tshuaj ntsuam xyuas ib txwm:
- Nruam thiab tiv thaiv kev tiv thaivntawm txhua lub voj voog, suav nrog kev ua haujlwm zoo li cas thaum sib hloov;
- Rwb thaiv tsev tsis kamnruab nrab ntawm circuits thiab mus rau lub tsev;
- Dielectric (hi- lauj kaub) lub zogntawm qhov ntsuas voltage nrog margin;
- Teeb liab kev ncaj nceesnyob rau hauv cov ntaub ntawv raws, xws li me ntsis- yuam kev los yog pob ntawv checks ntawm tus nqi ua hauj lwm cov ntaub ntawv;
- Kev ntsuas lub neej hloovntawm qhov xav tau ceev thiab lub voj voog ua haujlwm; thiab
- Kev ntsuam xyuas EMI/EMCthaum lub zog thiab siab - cov ntaub ntawv ceev sib koom ua ke.
Yog tias koj xav pom dab tsi cov tshev no koom nrog, peb txoj kev taug kev ntawmYuav ua li cas lub nplhaib swb raug kuajnpog cov txheej txheem ntau.
Ib tug neeg sawv cev teb rooj plaub: ib qho kev soj ntsuam turntable khiav lub koob yees duab Gigabit Ethernet thiab 24 V lub cev muaj zog Circuit Court los ntawm tib lub nplhaib sib khi. Cov kev xeem raug tshem tawm dhau lawm, tab sis hauv kev tsim cov kev sib txuas tau poob qis ib ntus thaum tsav tsheb nce. Qhov kho tsis tau ntau circuits. Cov khub Ethernet tau hloov mus rau kev tiv thaiv, impedance- tswj kev sib cuag ntawm sab nraud ntawm pawg los ntawm lub nplhaib lub cev muaj zog, thiab cov ntaub thaiv npog cable tau nqa los ntawm lub nplhaib tshwj xeeb rau chassis hauv av. Cov pob ntawv yuam kev ploj lawm. Cov qauv rov qab ntau zaus: sib xyaw fais fab- thiab- cov ntaub ntawv tsis raug yog feem ntau layout, shielding, thiab grounding teeb meem, tsis Circuit Court - suav cov teeb meem.
Piv txwv Daim Ntawv Thov
Robotics thiab Hoobkas Automation
Robotic pob qij txha, indexing ntxhuav, thiab automated soj ntsuam hlwb ib txwm dhau lub hwj chim, tswj, Ethernet, thiab sensor tawm tswv yim los ntawm ib tug tig axis. Lub nplhaib sib xyaw ua ke tshem tawm cov kab sib tw thiab tso cai rau kev txav mus tas li. Qhov kev sib tw ib txwm nyob ntawm no yog kev suav cov voj voog siab ua ke nrog kev ua siab ntev rau kev sib txuas lus poob qis.
Cranes thiab Cov Khoom Siv Hnyav
Cranes, rotating platforms, thiab kev tsim kho tshuab nqa lub zog rau lub teeb, tswj, koob yees duab, thiab cov neeg siv tshuab. Cov chaw no ntxiv kev vibration, sab nraum zoov raug, thiab muaj zog hluav taws xob nrov, uas thawb tus qauv tsim mus rau rugged vaj tse, sealing, thiab ceev faj tiv thaiv hauv av.
Kev kho mob thiab imaging Systems
Imaging gantries thiab cov cuab yeej zoo sib xws xav tau qhov loj me, kev sib hloov du, thiab cov ntaub ntawv huv huv, vim tias qhov teeb meem cuam tshuam tuaj yeem cuam tshuam rau cov duab lossis kev ntsuas. Cov no ua rau muaj kev nyiam tsawg -cov suab nrov thiab cov kev ntsuas kev sib txuas; saib peb phau ntawv qhiaplam rings rau cov khoom siv kho mobrau cov kev txwv tshwj xeeb.
Kev soj ntsuam, Radar, thiab Rotating Sensors
Yias- qaij taub hau, radar pedestals, thiab rotating sensor tej pob khoom ua ke lub hwj chim nrog video, Ethernet, RF-txog teeb liab, los yog tswj cov ntaub ntawv. Kev sib hloov tsis tu ncua ntxiv rau siab -bandwidth signals ua rau muaj kev tswj hwm impedance thiab suab nrov tsawg yog qhov tseem ceeb.
Cov lus nug nquag
Ib lub nplhaib plam puas tuaj yeem xa ob lub zog thiab Ethernet?
Yog lawm. Lub nplhaib ntiv nplhaib tuaj yeem nqa lub zog thiab Ethernet ua ke thaum lub teeb tsa sab hauv, kev sib cuag, kev sib txuas lus, thiab kev tiv thaiv yog tsim los rau cov ntaub ntawv xav tau thiab ib puag ncig hluav taws xob.
Lub nplhaib plam puas tuaj yeem xa Gigabit Ethernet?
Nws ua tau. Gigabit links xav tau impedance- tswj, tiv thaiv kev sib tw twisted ntawm kev sib cuag, khaws cia kom deb ntawm lub zog thiab hloov hluav taws xob, nrog rau cov ntaub thaiv npog cable nqa los ntawm lub nplhaib. Nrog rau qhov ntawd, tag nrho Gigabit throughput los ntawm kev sib hloov tas mus li yog ua tiav.
Puas yog lub zog thiab cov ntaub ntawv circuits yuav tsum tau sib cais hauv lub nplhaib ntiv nplhaib?
Nyob rau hauv feem ntau ua ke designs, yog. Kev sib cais txo EMI, crosstalk, thiab teeb liab distortion. Kev sib cais ntau npaum li cas nyob ntawm qib fais fab, hom teeb liab, thiab qhov chaw muaj.
Koj yuav tiv thaiv cov teeb liab cuam tshuam li cas hauv lub nplhaib plam?
Los ntawm ib txheej txheej: lub cev sib nrug ntawm lub hwj chim thiab cov teeb liab rings, shielded cabling nrog nruam shields, nplooj siab hauv av los yog ntaub thaiv npog circuits, sensible circuit grouping, thiab, nyob qhov twg xav tau, cais modules los yog RFI barriers.
Puas Ethernet plam rings yuav tsum tau shielded twisted khub?
Txhawm rau txhim khu kev ntseeg siab -ceev Ethernet nyob ze lub zog lossis hauv lub tshuab tsis nrov, cov hlua khi hlua khi yog qhov kev xaiv nyab xeeb, thiab daim ntaub thaiv yuav tsum txuas ntxiv los ntawm kev sib hloov. Luv luv, qis-kev sib txuas ceev hauv ib puag ncig huv si qee zaum siv cov khub uas tsis muaj kev tiv thaiv, tab sis qhov kev txiav txim siab yuav tsum ua raws li txoj cai, EMI kev pheej hmoo, thiab txoj hauv kev hauv av.
Dab tsi ua rau cov ntaub ntawv poob hauv lub nplhaib plam?
Feem ntau ua rau muaj xws li EMI txuas los ntawm lub zog hluav taws xob, kev sib txuas ntawm cov channel, impedance mismatch, tawg los yog tsis raug cov ntaub thaiv npog, tiv tauj -tsis kam lub suab nrov thaum tig, thiab routing uas tso cov ntaub ntawv kab ze ze rau cov suab nrov. Feem ntau tshwm sim raws li CRC yuam kev, retransmissions, encoder jitter, los yog kev poob qis.
Kuv puas xav tau cov kab hluav taws xob tiv thaiv ib txwm?
Tsis tas li. Shielded cables tseem ceeb tshaj plaws nyob rau hauv hluav taws xob tsis zoo ib puag ncig los yog thaum tus so ntawm lub system twb siv shielded cabling. Ua raws li kev txiav txim siab raws tu qauv, EMI kev pheej hmoo, txoj hauv kev hauv av, thiab tag nrho cov kev xav tau ntawm lub cev.
Thaum twg kuv yuav tsum xaiv lub nplhaib kev cai?
Xaiv cov kev cai thaum daim ntawv thov sib xyaw ua ke siab - lub zog thiab cov ntaub ntawv rhiab heev, muaj qhov chaw txwv lossis tshwj xeeb mounting, ntsib cov xwm txheej hnyav, lossis xav tau kev ntseeg siab ntawm cov teeb liab nruj. Yog tias ib qho kev xav tau txawv txawv, kev tsim kev cai feem ntau yog qis dua - txoj kev pheej hmoo.
Ntsiab Cai
Lub hwj chim thiab cov ntaub ntawv swb rings cia lub tshuab hla hluav taws xob thiab kev sib txuas lus teeb liab los ntawm kev sib hloov tas mus li hauv ib qho kev sib koom ua ke. Kev ntseeg tau zoo tsis yog los ntawm kev ntxiv circuits. Nws los ntawm kev tsim cov kev sib dhos nyob ib puag ncig kev sib cais ntawm cov teeb liab, thaiv kev tiv thaiv, hauv av, layout, mechanical txwv, thiab qhov chaw ua haujlwm tiag tiag, tom qab ntawd txheeb xyuas qhov tshwm sim los ntawm kev sim.
Rau cov hauj lwm yooj yim, lub nplhaib ntiv nplhaib txheem yuav txaus. Rau kev sib xyaw fais fab, Ethernet, CAN tsheb npav, video, encoder, lossis sensor teeb liab, lub hom phiaj - tsim tsim txo qis kev pheej hmoo ntawm kev sib koom ua ke thiab txhim kho lub sijhawm ntev -. Txhais koj lub zog, cov txheej txheem, lub hnab ntim tshuab, ib puag ncig, thiab cov tswv yim hauv av ua ntej; nrog rau kev specification, akev cai swb nplhaib dawstuaj yeem muab qhov huv si, compact, thiab muaj kev vam meej rotating kev sib txuas rau cov khoom xav tau.