Kuthetsa Mavuto a Electromagnetic Interference (EMI) mu Servo Motor Stages

Takhala tikumanga masitepe oyendetsedwa ndi manja komanso a injini kwa zaka zoposa 9. Timapanganso mapulatifomu owongolera okha. Chifukwa chake taona mavuto ambiri a EMI. Ena ndi osavuta. Ena amakupangitsani kufuna kudzula tsitsi lanu.

Ngati mukugwira ntchito ndi kuwala kofanana, mumadziwa momwe zinthu zilili. Gawo likuyenda. Kamera ikuwoneka. Chithunzi chili ndi phokoso. Malo ake ali kutali ndi ma microns ochepa. Mumayesa makina. Chilichonse chili cholimba. Kenako mumazindikira kuti vuto si makina. Ndi phokoso lamagetsi.

Bukuli ndi la ogula, mainjiniya, ndi aliyense amene akufunagawo la injini ya servoZimenezo zimagwira ntchito mu fakitale yeniyeni. Palibe zopanda pake. Zinthu zothandiza zomwe taphunzira kuchokera ku mapulojekiti enieni.

Zimene EMI Imachita pa Gawo la Servo Motor

EMI imayimira kusokoneza kwa electromagnetic. Ndi phokoso lamagetsi losafunikira. Limatha kuyenda kudzera mu zingwe kapena mumlengalenga. Likafika pagawo lanu, limasokoneza drive, encoder, kamera, kapena masensa.

Chotsatira?Kusokoneza kayendetsedwe ka kayendetsedwe ka zinthu. Gawo silikuyenda bwino komwe mwanena. Nthawi zina ndi cholakwika chaching'ono. Nthawi zina chimakhala chachikulu. Mu optical alignment, ngakhale cholakwika chaching'ono ndi nkhani yaikulu.

Tawona gawo lokhazikika lomwe limatha kubwerezabwereza la 2 µm mu labu. Pa mzere wopanga, linatsika kufika pa 15 µm. Gawo lomwelo. Makaniko omwewo. Kusiyana kokha kunali EMI kuchokera ku zida zapafupi.

Kumene EMI Imachokera mu Magawo Oyendetsedwa ndi Magalimoto

EMI mu magawo a injininthawi zambiri amachokera m'malo anayi. Tiyeni tigawane mwachidule.

Kawirikawiri Kuyendetsa Ndiko Kumene Kumaganiziridwa Kwambiri

Ma servo drive ambiri amagwiritsa ntchito PWM. Izi zikutanthauza kuti amayatsa ndi kuzimitsa mwachangu kwambiri. Tikukamba za 10 kHz mpaka 100 kHz kapena kuposerapo. Kusinthana mwachangu kumeneku kumapanga phokoso la ma frequency apamwamba. Ndi gwero lalikulu la EMI m'makina ambiri.

Zingwe ndi Kukhazikika: Okayikiridwa Kawirikawiri

Zingwe zamagetsi ndi zingwe zolumikizira siziyenera kuyenda limodzi. Ngati zitatero, phokoso limadumpha kuchokera ku chimodzi kupita ku chinzake. Tawona chingwe cholumikizira chosatetezedwa cha mamita atatu pafupi ndi chingwe chamagetsi cha 220 V. Zimenezo zinawonjezera cholakwika cha 10 µm. Kuchokera ku njira yolumikizira zingwe.

Kuyimitsa nthaka molakwika ndi vuto lina lalikulu. Chingwe chozungulira pansi chimagwira ntchito ngati antenna. Chimatenga phokoso ndikulitumiza molunjika ku encoder kapena kamera yanu.

Makamera ndi Ma Encoders Ndi Omwe Akhudzidwa

Ma encoder amatumiza zizindikiro zamagetsi otsika. N'zosavuta kusokoneza. Ngati chingwe cha encoder sichinatetezedwe, phokoso likhoza kusintha ma pulse. Kenako drive imaganiza kuti siteji ili kwinakwake komwe siili.

Makamera nawonso ndi ozindikira. EMI imawonekera ngati mizere, chipale chofewa, kapena mipiringidzo yozungulira pachithunzichi. Pulogalamuyo imawona m'mphepete molakwika. Imawerengera kuchotsera kolakwika. Gawolo limapita kumalo olakwika.

Magwero Ena Omwe Simungaganizire

Zowotcherera, mapampu, ma laser, komanso magetsi a fluorescent amatha kupanga EMI. Kale tinali ndi kasitomala yemwe siteji yake inali ndi vuto nthawi iliyonse wowotcherera wapafupi akatsegula. sitejiyo inali bwino. Vuto linali chilengedwe.

Chifukwa Chake Kugwirizana Kwa Ma Optical Kuli Kovuta Kwambiri

EMI mu Magawo Oyendetsa Magalimoto a Mapulatifomu Okhazikika Owonandi nkhani yofala komanso yokwera mtengo. Nayi chifukwa chake.

Kulinganiza kwa kuwala ndi njira yozungulira yotsekedwa. Kamera imayang'ana chizindikiro. Mapulogalamu amawerengera kuchotsera. Gawo limayenda kuti likonze. Kenako kamera imayang'ananso. Ngati EMI ilowa mu chizindikiro cha kamera, chithunzi sichimveka bwino. Ngati EMI ilowa mu chizindikiro cha encoder, drive imasokonezeka. Chizungulirocho sichikhazikika.

Mu mafakitale ambiri, cholinga chake ndi 1 µm mpaka 5 µm. EMI imatha kuwonjezera mosavuta 10 µm mpaka 50 µm ya cholakwika. Ndiko kusiyana pakati pa kulephera ndi kulephera.

Kodi Mungachepetse Bwanji Kusokoneza kwa Kuwongolera Mayendedwe mu Magawo a Servo Motor pa Mapulatifomu Okhazikika Owona?

Ili ndiye funso lalikulu.Kodi Mungachepetse Bwanji Kusokoneza kwa Kuwongolera Mayendedwe mu Magawo a Servo Motor pa Mapulatifomu Okhazikika Owona?Yankho si gawo limodzi lamatsenga. Ndi njira yogwiritsira ntchito dongosolo.

Nazi zinthu 8 zomwe timachita mu ntchito zenizeni.

1. Gwiritsani ntchito zingwe zopindika zotetezedwa

Kuteteza kumatseka magetsi. Kupotoza kumathetsa mphamvu zamaginito. Gwiritsani ntchito zingwe zopotoka zotetezedwa kuti mugwiritse ntchito ma encoders. Gwiritsani ntchito zingwe zotetezedwa kuti mugwiritse ntchito mphamvu ya injini. Lumikizani chishango kumapeto onse awiri kuti mumve phokoso la ma frequency apamwamba. Ngati muli ndi phokoso la ma frequency ochepa, yesani mbali imodzi. Yesani zonse ziwiri.

Chishango chabwino chingachepetse phokoso ndi 20 dB mpaka 40 dB. Izi zikutanthauza kuti voteji ya phokoso ndi yocheperako ka 10 mpaka 100.

2. Sungani Mawaya a Magetsi ndi Zizindikiro Pakati pawo

Sungani zingwe zamagetsi patali ndi 20 cm kuchokera ku zingwe za chizindikiro. Ngati ziyenera kuwoloka, kuwoloka pa madigiri 90. Musaziyendetse motsatizana kwa mtunda wautali. Lamulo losavuta ili lingathandize kuchepetsakusokoneza kayendetsedwe ka kayendetsedwe ka kayendedwendi theka kapena kuposerapo.

3. Konzani Maziko Anu

Gwiritsani ntchito malo otsetsereka a single-point pa zizindikiro za analog. Gwiritsani ntchito malo otsetsereka apansi panthaka kuti mumve phokoso lapamwamba. Sungani mawaya apansi afupi komanso okhuthala. Pewani unyolo wa daisy. Malo otsetsereka apansi angapangitse EMI kukhala yoipa kwambiri, osati yabwinoko.

4. Onjezani Zosefera za EMI ndi Ferrite Cores

Ikani fyuluta ya EMI pa AC input ya drive. Onjezani ma ferrite cores pa ma motor ndi ma encoder cables. Ferrite core imatha kuwonjezera 10 dB ku 30 dB ya impedance pa high frequency. Imaletsa phokoso kuyenda pa chingwe.

5. Sankhani Ma Drive ndi Ma Motors Otsika-EMI

Si ma drive onse omwe ali ofanana. Ena ali ndi switch yofewa. Ena ali ndi zosefera zomangidwa mkati. Ma mota ena ali ndi kapangidwe kabwino kozungulira. Funsani deta yoyesera ya EMI. EMI yotsikagawo la injini ya servozingawononge ndalama zokwana 10% mpaka 20%. Koma zingapulumutse 50% ya nthawi yokonza zolakwika.

6. Konzani Mayankho a Encoder

Gwiritsani ntchito ma differential encoders m'malo mwa single-end. Zizindikiro zosiyana zimakana phokoso la common-mode. Gwiritsani ntchito ma optical encoders m'malo amphamvu a maginito. Gwiritsani ntchito maginito encoders m'malo odetsedwa. Gwirizanitsani encoder ndi ntchitoyo.

7. Yesani Musanakonze

Simungathe kukonza zomwe simungathe kuyeza. Gwiritsani ntchito oscilloscope kuti muwone zizindikiro za encoder. Gwiritsani ntchito EMI receiver kuti mupeze phokoso lowala. Yang'anani pafupi ndi kamera, encoder, ndi drive. Lembani kuchuluka kwa phokoso musanakonze komanso mutakonza chilichonse.

8. Gwiritsani Ntchito Zosefera za Mapulogalamu Ngati Malo Omaliza Othandizira

Nthawi zina zida sizikwanira. Mutha kuwonjezera fyuluta ya notch mu drive. Mutha kuwonjezera fyuluta yotsika mu pulogalamu ya kamera. Mutha kuwerenga mawerengedwe angapo pa avareji. Njira izi sizichotsa EMI, koma zimachepetsa mphamvu yake.

Gome 1 likuwonetsa mtundu wa kusintha komwe mungayembekezere.

Gawo Lotsika la EMI Servo Motor Stage vs Standard Servo Motor Stage kuti Automated Optical Alignment igwiritsidwe ntchito

Mukagula siteji, muli ndi chisankho. Mutha kugula siteji yokhazikika. Kapena mutha kugula siteji yotsika ya EMI.Gawo Lotsika la EMI Servo Motor Stage vs Standard Servo Motor Stage kuti Automated Optical Alignment igwiritsidwe ntchitoKuyerekeza n'kofunika. Kumakhudza mtengo, nthawi yoyambira, komanso magwiridwe antchito.

Umu ndi momwe amafananizira.

Gawo lokhazikika ndi labwino pa ntchito zosavuta. Ngati musuntha kuchoka pa mfundo A kupita ku mfundo B ndi kulondola kwa 50 µm, EMI singakhale yofunika. Koma ngati mugwirizanitsa zigawo za kuwala ndi kulondola kwa 1 µm, gawo lokhazikika lingalephereke.

Gawo lotsika la EMI limawononga ndalama zambiri. Koma limachepetsa chiopsezo. Limasunga nthawi yokonza zinthu. Limawonjezera phindu. M'mapulojekiti ambiri, ndalama zowonjezera zimabwezedwa pakatha milungu ingapo.

Mndandanda Wosavuta Wosankha

Kodi mumasankha bwanji choyeneragawo la injini ya servoGwiritsani ntchito mndandanda uwu.

Gawo 1: Fotokozani malo anu a EMI.Lembani zida zomwe zili pafupi. Zowotcherera, mapampu, ma laser, ndi ma drive ndi magwero amphamvu a phokoso. Yang'anani mtunda. Yang'anani kuchuluka kwa phokoso.

Gawo 2: Onani ngati zingatheke kubwerezabwereza, osati kungothetsa vutoli.Gawo limodzi lingakhale ndi resolution ya 0.1 µm. Koma ngati kubwerezabwereza kuli 5 µm, silingathe kusunga 1 µm yolumikizana. Funsani deta yoyesera pansi pa EMI.

Gawo 3: Funsani za chitetezo ndi nthaka.Kodi zingwezo zili ndi chitetezo? Kodi chishangocho chimalumikizidwa bwanji? Kodi pali malo otsetsereka? Kodi mungandipatse chithunzi cha malo otsetsereka?

Gawo 4: Unikani kapangidwe ka chingwe ndi cholumikizira.Zolumikizira zachitsulo ndi zabwino kuposa pulasitiki. Zimapereka chitetezo. Yang'anani radius ya kupindika kwa chingwe. Kupindika kolimba kumatha kuswa chishango.

Gawo 5: Pemphani deta yoyesera ya EMI.Funsani deta yochokera ku radiation ndi conducted emissions. Funsani deta yoyesera chitetezo cha mthupi. Ngati wogulitsa sangathe kupereka, samalani.

Gawo 6: Ganizirani mtengo wonse.Musayerekeze mtengo wa siteji yokha. Phatikizani nthawi ya uinjiniya, nthawi yokonza zolakwika, nthawi yopuma, ndi kutayika kwa phindu.

Zikwama Zenizeni Zochokera ku Sitolo Yathu

TawonaEMI mu magawo a injinim'mafakitale ambiri. Nazi zitsanzo zinayi zenizeni.

Nkhani 1: Kuyang'anira wafer ya semiconductor.Kasitomala adagwiritsa ntchito muyezogawo la injini ya servoKamera inawona phokoso la 5 µm. Kubwerezabwereza kwa siteji kunali 3 µm. Pambuyo powonjezera zingwe zotetezedwa ndi ferrite core, phokoso linatsika kufika pa 1 µm. Kuchuluka kwa zokolola kunakwera ndi 8%.

Nkhani yachiwiri: Kukonza ma panel owonetsera.Dongosolo lokonza zowonetsera linkakhala ndi zolakwika zoyendetsa mwachisawawa nthawi iliyonse 20-30. Choyambitsa chinali kuzungulira kwa nthaka pakati pa siteji ndi laser. Malo okhala ndi mfundo imodzi ndi chosinthira chodzipatula chinakonza. Zolakwika zinatha kwathunthu.

Nkhani 3: Kusanthula kwa slide yachipatala.Chojambulira chachipatala chinkafunika kuyenda bwino. Gawolo linagwedezeka pa 100 Hz. Choyambitsa chinali phokoso la PWM kuchokera ku drive. Fyuluta yotsika mtengo ndi drive yotsika mtengo ya EMI zinachepetsa kugwedezeka ndi 90%.

Nkhani 4: Kulinganiza kwa laser.Pulatifomu yolumikizira laser inali ndi vuto la malo a 10 µm. Chingwe chojambulira chinali chosatsekedwa. Chinali pafupi ndi chingwe chamagetsi cha 220 V kwa mamita atatu. Pambuyo polekanitsa zingwezo ndikugwiritsa ntchito chingwe chojambulira chotetezedwa, cholakwika chinatsika kufika pa 1.5 µm.

FAQ

Kodi Mungachepetse Bwanji Kusokoneza kwa Kuwongolera Mayendedwe mu Magawo a Servo Motor pa Mapulatifomu Okhazikika Owona?
Gwiritsani ntchito zingwe zotetezedwa. Lekanitsani mphamvu ndi chizindikiro. Pukutani bwino. Onjezani zosefera ndi ma ferrite. Sankhani gawo lotsika la EMI. Yesani ndi oscilloscope. Masitepe awa amachepetsakusokoneza kayendetsedwe ka kayendetsedwe ka kayendedwenthawi zambiri, 80% mpaka 95%.

Kodi gwero lalikulu la EMI mu gawo la servo motor ndi liti?
PWM servo drive ndiye gwero lalikulu kwambiri. Zingwe za mota ndi zachiwiri. Zingwe zozungulira pansi ndi zachitatu.

Kodi ndingathe kukonza EMI popanda kusintha siteji?
Inde. Mutha kuwonjezera zosefera, ma ferrite, ndi zingwe zotetezedwa. Mutha kukonza nthaka. Koma ngati kapangidwe ka siteji sikali bwino, mutha kusintha pang'ono.

Kodi gawo la injini ya servo ya EMI yotsika mtengo ndi zingati?
Gawo lotsika la EMI limawononga ndalama zokwana 10% mpaka 30% kuposa gawo lokhazikika. Mtengo weniweni umadalira kuyenda, katundu, ndi kulondola.

Kodi ndikufunika EMI yochepa kuti ndikhale ndi chipinda choyeretsa?
Chipinda chotsukira sichichotsa EMI. Koma zida zotsukira nthawi zambiri zimakhala zotetezeka. Gawo lotsika la EMI ndi chisankho chabwino pakukonza kuwala kwa chipinda chotsukira.

Kodi ndimayesa bwanji EMI?
Gwiritsani ntchito oscilloscope kuti mupeze phokoso la chizindikiro. Gwiritsani ntchito EMI receiver kuti mupeze phokoso lochokera ku radiation. Yesani kamera, encoder, ndi drive. Yerekezerani musanakonze komanso mutakonza chilichonse.

Chifukwa Chake Tigwireni Ntchito

Takhala mu bizinesi iyi kwa zaka zoposa 9. Timapanga magawo oyendetsedwa ndi manja ndi injini. Timapanganso nsanja zowongolera zokha. Timayang'ana kwambiri pa kafukufuku ndi chitukuko, kupanga, ndi kugulitsa. Timamvetsetsa EMI chifukwa timayesa tsiku lililonse.

Zathugawo la injini ya servozosankha zikuphatikizapo:

Ma seti a zingwe otsika a EMI.

Zingwe zotetezera ma encoder.

Zosefera za EMI zomangidwa mkati.

Ma encoder osiyanasiyana.

Kapangidwe ka nthaka kopangidwa mwamakonda.

Deta yoyesera ya EMI ikapemphedwa.

Sitigulitsa siteji yokha. Timakuthandizani kuthetsa vuto lonse la kuyenda. Ngati muli ndi vuto la EMI, titumizireni zomwe mwakhazikitsa. Tikhoza kuwonanso mawaya anu, malo oimikapo magalimoto, ndi makonda a drive. Tikhoza kulangiza siteji yotsika ya EMI yomwe ikugwirizana ndi bajeti yanu.

Tiyeni Tikambirane za Vuto Lanu la EMI

Kodi mukupanga nsanja yolumikizira kuwala yokha? Kodi mwatopa nayokusokoneza kayendetsedwe ka kayendetsedwe ka kayendedweKodi mukufunagawo la injini ya servozomwe zimagwira ntchito mu fakitale yaphokoso?

Lumikizanani nafe lero. Tiuzeni cholinga chanu cholondola, mtunda woyendera, katundu, ndi malo. Tikupatsani malangizo omveka bwino. Tidzagawananso deta yoyesera ndi upangiri wosankha. Tiyeni tichepetse EMI ndikuwonjezera phindu lanu.

Titumizireni imelo tsopano. Pezani mtengo wachangu. Konzani vuto lanu la EMI ndi gawo lopangidwira kupanga zenizeni.