Yankho Lachangu
Kubwerezabwereza kwa sensa yosuntha ya laser kumafotokoza momwe kuwerenga mobwerezabwereza kumagwirizanirana pamene cholinga chomwecho chikuyesedwa pansi pa mikhalidwe yomweyi. Zimathandiza mainjiniya owunikira kuweruza ngati kusintha pang'ono kutalika kungasiyanitsidwe ndi phokoso la muyeso. Kubwerezabwereza sikukhazikitsa kulondola kwathunthu, kulumikizana, kapena magwiridwe antchito pamalo aliwonse. Chisankho chogula chiyenera kulumikiza mtengo wotchulidwa ndi cholinga choyesera, mtunda woyezera, avareji, nthawi yoyankha, kutentha, ndi tanthauzo la ziwerengero. Tsimikizirani unyolo wonse woyezera pazigawo zopangira musanakhazikitse malire olandirira. Sensa yomwe imabwereza bwino pa khadi loyera losasuntha ingachite mosiyana pazinthu zosuntha, zowunikira, zopendekeka, kapena zopangidwa ndi mawonekedwe.
Mfundo Zofunika Kwambiri
• Yerekezerani kubwerezabwereza kokha pamene matanthauzidwe a ziwerengero ndi mikhalidwe yoyesera ikufanana.
• Gawani ndalama zosiyana za tsankho, kusintha kwa kutentha, zida, ndi njira yogulira.
• Yesani zida zoyendetsera zinthu komanso cholinga chokhazikika.
• Onani kusefa ngati njira yosiyana pakati pa kuchepetsa phokoso ndi kuchedwa kwa kuyeza.
• Vomerezani njira yowunikira motsatira malamulo ake olekerera ndi osankha, osati chiŵerengero cha mfundo zazikulu.
Chifukwa chiyani kubwerezabwereza ndikofunikira pa siteshoni yowunikira
Mainjiniya opanga zinthu akuyang'ana gawo losindikizidwa amawona kuti kuwerenga kwake kumasintha ngakhale gawolo litawoneka losasunthika. Funso lomwe limabwera nthawi yomweyo ndilakuti ngati gawolo silikukhazikika kapena makina oyezera akuwonjezera kusinthasintha. Kubwerezabwereza kwa sensa yosinthira ya laser ndikofunikira kwambiri pakupeza matenda amenewo. Monga chitsanzo cha wopanga konkriti, Lanbao imalemba kulondola kobwerezabwereza kwa 20 μm kwa mndandanda wolondola kwambiri wa PDA-CR50, wokhala ndi sikelo yonse ya 30 mm ndi kulondola kwa mzere wonse wa ±0.1%. Tsamba la deta limatchulanso mikhalidwe yoyesedwa yolamulidwa ndi mgwirizano wa ziwerengero wa 3σ. Tsatanetsatane umenewo ndi wothandiza kwambiri kuposa zomwe zimanenedwa za micrometer yokha. [1]
Wogula wowunikira amafunika mayankho awiri: kodi makinawo angathetse kusiyana komwe kuli kofunika, ndipo kodi makinawo angathe kugawa magawo mokhazikika panthawi yonse yosintha? Choyamba chimafuna kuyesa koyang'aniridwa. Chachiwiri chimafuna kutsimikizika kwa kupanga komwe kumaphatikizapo malo, kusintha kwa pamwamba, kutentha, mapulogalamu, ndi kukonza. Yankho lililonse silichokera pakubwerezabwereza kokha.
Chithunzi 1. Chithunzi cha mndandanda wa zinthu za Lanbao PDA kuchokera patsamba lovomerezeka la zinthu. Chithunzicho chikuwonetsa banja la zinthuzo; tsimikizirani chiganizo chonse cha chitsanzo musanagwiritse ntchito zofunikira. Gwero [2].
Kubwerezabwereza kosiyana ndi zina zomwe zimayesedwa
Kubwerezabwereza kumakhudza kufalikira kwa zochitika motsatizana pansi pa mikhalidwe yosasinthika kwenikweni. Kubwerezabwereza kumafufuza mikhalidwe yosinthika, monga wogwiritsa ntchito wina, kukhazikitsa kwina, kapena tsiku lina. NIST imasiyanitsa malingaliro awa ndipo imalimbikitsa kunena momwe kulondola kumafotokozedwera, kuphatikiza muyeso woyenera wa ziwerengero.
Kuchuluka kwa kuwala ndi kuchuluka kochepa kwambiri komwe kumawonetsedwa kapena kusiyanitsa. Chowonetsera chimatha kuwonetsa kukwera pang'ono pomwe kuwerengera kwapansi kumayendayenda ndi kuchuluka kwakukulu. Kusankhana mitundu ndi kusiyana kokhazikika kuchokera ku mtengo wofotokozera. Linearity imafotokoza kuchoka pa ubale wodziwika kudutsa muyeso. Sensor imatha kubweza mobwerezabwereza mtengo wolakwika womwewo, kotero kubwerezabwereza kwabwino sikungachotse cholakwika cha calibration.
| Kufotokozera | Zimene zimauza wogula | Funso lotsimikizira |
| Kubwerezabwereza | Kufalikira pansi pa mikhalidwe yodziwika mobwerezabwereza | Kodi mtengo wake ndi σ, 3σ, ±3σ, kapena peak to peak? |
| Mawonekedwe | Chotulutsa chaching'ono kwambiri kapena chowonjezera chowonetsedwa | Kodi izi ndi digito quantization kapena kusintha kotsimikizika komwe kungadziwike? |
| Mzere | Kupatuka kudutsa muyeso womwe watchulidwa | Kodi chiwerengerocho chimachokera pa sikelo yonse kapena kuwerenga? |
| Kutentha kumasinthasintha | Kusintha kogwirizana ndi kutentha | Kodi ndi zinthu ziti zomwe zimagwiritsidwa ntchito poyezera kutentha ndi kutentha? |
| Nthawi yoyankha | Chepetsani kusintha kolondola kwa zotsatira | Kodi mtengo womwe watchulidwawo ukuphatikizapo kusefa? |
| Kusatsimikizika kwa dongosolo | Kusatsimikizika kwa muyeso wophatikizana | Kodi zopereka za zida ndi kugula zikuphatikizidwa? |
Werengani mosamala maperesenti ofotokozera. Pa sikelo yonse yowonetsera ya 30 mm, ±0.1% ikufanana ndi ±0.030 mm, kapena ±30 μm. Kuwerengera kumeneko kumasintha mafotokozedwe ozikidwa pa range kukhala mayunitsi othandiza aukadaulo. Sizikutanthauza kuti muyeso uliwonse uli ndi cholakwika chomwecho, ndipo sichimasintha linearity kukhala yobwerezabwereza.
Funsani kuti nambala yobwerezabwereza ikuyimira chiyani kwenikweni
Ma quotation awiri akhoza kunena 20 μm ndikufotokozera magwiridwe antchito osiyanasiyana. Wogulitsa m'modzi anganene za kusiyana kwa miyezo itatu; wina anganene za kusiyana konse komwe kwawonedwa kuyambira pa peak mpaka peak. Zotsatira za peak mpaka peak zimadaliranso kuchuluka kwa zitsanzo ndi zinthu zina. Funsani njira yowerengera, chiwerengero cha zitsanzo, mawerengedwe osaphika komwe alipo, komanso ngati nambalayo ndi malire kapena zotsatira wamba.
Chikalata chodzipereka cha Lanbao cha PDA-CR50 chimazindikira khadi loyera lowala ndi 90%, kutentha kwa 23 ±5°C, kutentha kwa 24 VDC, ndi kutentha kwa mphindi 30. Chimatchulanso nthawi yoyeserera ya 2 ms ndi avareji ya zitsanzo 100 muzolemba zake zoyesera. [1] Musanayerekezere mawu ndi chikalatacho, funsani momwe makondawo akugwirizanirana ndi nthawi yoyankhira yomwe yatchulidwa komanso kubwerezabwereza. Musaganize kuti zotsatira zosefedwa za labotale zikuyimira njira yogwirira ntchito mwachangu kwambiri.
Kuti muyerekeze kugula, sungani njira yoyezera imodzi. Fotokozani cholinga, mtunda wofotokozera, mawonekedwe a pamwamba, nthawi yokhazikika, nthawi yopezera, mawonekedwe otulutsa, ndi kusefa. Pemphani mayeso ofanana kuchokera kwa wogulitsa aliyense. Ngati makonda ofanana ndi omwe simungathe kuwagwiritsa ntchito, fotokozani kusiyana kwake momveka bwino m'malo moika manambala opanda kanthu.
Kumvetsetsa chifukwa chake malo enieni amasintha zotsatira zake
Masensa ambiri osunthika a laser afupiafupi amagwiritsa ntchito kuwala kozungulira. Wolandila amawona malo a kuwala kowala, ndipo makina opangira amalemba malowo ndi mtunda. Chifukwa chake, momwe zinthu zilili pamwamba zimatha kukhudza muyeso ngakhale mtunda weniweni utakhala wosasintha. Zotsatira zake ziyenera kuyesedwa kuti zigwirizane ndi kapangidwe kake ka kuwala ndi gawo lake.
Malo opukutidwa amatha kutsogoza kuwala kothandiza kuchoka kwa wolandila kapena kupanga kuwala kwamphamvu kwa specular. Malo amdima angapereke kuwala kochepa. Kapangidwe kake kangasinthe chizindikiro chomwe chawonedwa pamene zinthu zosiyanasiyana pamwamba zikudutsa pamalopo. Pamphepete, malo owalawo akhoza kukhala ndi kutalika kawiri. Malo akuluakulu amatha kukhala ndi tsatanetsatane wapafupi womwe kuwunikaku kukufuna kuthetsa.
Ikani sensa kuti njira zotulutsira ndi kulandira zisakhale zotsekedwa panthawi yonse yomwe mukuyembekezera. Yang'anani matumba, m'mphepete mokwezedwa, ndi zida zolumikizira kuti muwone ngati pali mthunzi wowoneka bwino. Gwiritsani ntchito mitundu yeniyeni ya zomaliza pamwamba, kuphatikizapo kusintha kovomerezeka kwa kupanga. Kuyesa chitsanzo chimodzi chokongola kungabise mawonekedwe olephera omwe amawonekera gulu lotsatira la zinthu litafika.
Pangani bajeti yolondola musanasankhe zida zamagetsi
Yambani ndi kulolera kokoka ndi zotsatira za kuvomereza konama kapena kukana konama. Khazikitsani chopereka chovomerezeka choyezera ndi gulu laubwino. Chiŵerengero chokhazikika cha muyeso-ku-kulekerera chingakhale cholinga chothandiza chamkati, koma palibe chiŵerengero chimodzi chomwe chimatsimikizira chokha kuti chikugwirizana ndi chinthu chilichonse kapena mulingo uliwonse wa chiopsezo.
Taganizirani za kutalika kofanana ndi kutalika kwa 9.80 mpaka 10.20 mm, m'lifupi mwake ndi 0.40 mm. Tiyerekeze kuti mayeso oyendetsa ndege apanga kupotoka kosasunthika kwa 0.006 mm. Kupotoka kokhazikika sikisi kumafikira 0.036 mm, kapena 9% ya m'lifupi mwa kulekerera. Uku ndi kuwerengera kowunikira mayeso osasunthika, osati zotsatira zonse zovomerezeka. Sizimaphatikizapo kusintha malo, tsankho, kutentha, ndi zotsatira za nthawi yayitali.
Ngati zopereka zodziyimira pawokha zosatsimikizika zikuyerekezeredwa ngati 6 μm pa phokoso la sensor, 8 μm poyimikanso, ndi 4 μm kuti zipezeke, root-sum-square yawo ndi pafupifupi 10.8 μm. Kuwerengera kumeneku kumakhala kovomerezeka pokhapokha ngati ziwerengerozo zikugwirizana ndipo lingaliro lodziyimira pawokha ndiloyenera. Zotsatira zogwirizana, tsankho losakonzedwa, ndi malire apamwamba odziwika amafunika chithandizo chosiyana; siziyenera kuyikidwa mosasamala mu fomula yomweyo.
Choncho, kukambirana kothandiza kugula kumayamba ndi bajeti yogwiritsira ntchito. Ngati chogwiriracho chikulamulira kusinthasintha, sensa yokwera mtengo kwambiri singawonjezere phindu. Ngati zotsatira za pamwamba zikulamulira, kusintha kwa mawonekedwe kapena ukadaulo wozindikira kungakhale kofunikira kuposa mtengo wocheperako wobwerezabwereza wa katalogi.
Tsimikizirani miyeso yosasuntha ndi yosasunthika padera
Gwiritsani ntchito njira yofufuzira yomwe ingatsatidwe kapena gawo loyenera losamutsidwa kuti muwone malo odziwika. Kusatsimikizika kwa njira yowunikira kuyenera kukhala koyenera pa chisankho chomwe chikupangidwa. Lembani momwe zinthu zilili ndipo lolani dongosolo likhale lokhazikika malinga ndi wopanga. Sungani makonda ndi deta yaiwisi kuti zotsatira zake zibwerezedwenso mutatha kukhazikitsa.
1. Yesani chizindikiro chimodzi chokhazikika mobwerezabwereza kuti mupeze phokoso la kanthawi kochepa.
2. Chotsani ndikusintha gawo lomwelo kuti muwonetsetse kusintha kwa katundu ndi zida.
3. Yesani zigawo zoyimira pamlingo wofunikira komanso zomaliza pamwamba.
4. Bwerezani pa liwiro lopanga pogwiritsa ntchito njira yeniyeni yoyambira ndi njira yopezera.
5. Bwerezani pambuyo potentha, kusintha kwa kutentha, ndi kuyeretsa kapena kukonza bwino.
6. Yerekezerani zotsatira ndi malire omwe mwagwirizana ndipo fufuzani zolephera musanatulutse.
| Gawo lotsimikizira | Ndondomeko yoyambira yowonetsera | Umboni woti usunge |
| Chizindikiro chosasinthasintha | Kuwerenga 100 pa malo atatu aliwonse | Avereji, kupotoka kokhazikika, mtunda, kuwerengera kolakwika |
| Kusintha malo a gawo | Zigawo 10 zokhala ndi zobwezeretsanso zitatu chilichonse | Kusintha kwa kukweza ndi kudalira malo |
| Kuyang'anira kwamphamvu | Liwiro lotsika, lodziwika bwino, komanso lalikulu kwambiri la mzere | Nthawi yoyambitsa, deta yosowa, zolakwika zamagulu |
| Kulimba kwa pamwamba | Zitsanzo zakuda kwambiri, zowala kwambiri, komanso zokhwima kwambiri zomwe zimavomerezedwa | Kukhazikika kwa kubweza ndi kusagwirizana kwa muyeso |
| Kukhazikika kwa kusintha | Chiyambi, pakati, ndi mapeto a kusintha kwa mayesero | Kuyang'ana kutentha, kutsetsereka, ndi ma reference |
Kuchuluka kumeneku ndi malo oyambira omwe akuperekedwa, osati kukula kwa zitsanzo zomwe zimalamulidwa. Wonjezerani kufalikira malinga ndi kusiyanasiyana kwa njira, zofunikira pakukhulupirira, komanso mtengo wa chisankho cholakwika. Kuyesa kwakanthawi kochepa kumatha kuzindikira vuto popanda kutsimikizira kudalirika kwa nthawi yayitali.
Linganizani avareji motsutsana ndi liwiro la mzere
Kuyeza avareji kungachepetse phokoso losasinthika, koma kungachedwetsenso zotsatira ndikuchepetsa mawonekedwe omwe ayenera kudziwika. Pa zitsanzo zodziyimira pawokha, kupotoka kwa avareji kumachepa ndi muzu wa sikweya wa chiwerengero cha zitsanzo. Phokoso logwirizana, kuyenda pang'onopang'ono, ndi zolakwika zodalira pamwamba sizitsatira kusinthaku.
Mu kuwunika kofananira kosuntha, mawonekedwe a 5 mm omwe akuyenda pa 0.5 m/s amakhalabe pansi pa malo oyezera mfundo kwa pafupifupi 10 ms. Kukhazikitsa kwa mayankho a 40 ms ndikutalika kuposa zenera lowonera. Mawonekedwewo akhoza kukhala ochepa kapena osakanikirana ndi malo ozungulira. Kukhazikitsa mwachangu kungakhale kofunikira, kutsatiridwa ndi mayeso atsopano obwerezabwereza pamalo amenewo.
Ganizirani za kuchedwa kwa choyambitsa, nthawi yowunikira wowongolera, zosintha zolumikizirana, ndi avareji iliyonse yomwe yachitika mu PLC. Chiwonetsero cha sensa chingawoneke chokhazikika pomwe PLC ikuwerenga deta yakale kapena yosefedwa mosiyana. Unikani mtengo womwe wagwiritsidwa ntchito posankha kupanga.
Yang'anani malamulo ogwirizanitsa ndi kuvomereza
Kuti mugwiritse ntchito mawonekedwe a analog, onetsetsani kukula, kutsimikiza kwa input, grounding, cable routing, ndi loop load. Kuti mugwiritse ntchito mawonekedwe a digito, onetsetsani mayunitsi, kutanthauzira kwa register, kuchuluka kwa zosintha, kugwiritsa ntchito deta yosavomerezeka, ndi nthawi yotseka. Palibe mawonekedwe omwe amatsimikizira zotsatira zabwino zowunikira; kukhazikitsa kwathunthu kumatsimikiza magwiridwe antchito.
Ikani lamulo lomveka bwino la chisankho pafupi ndi malire ofotokozera. Muyeso woyandikira malire ungafunike bande loteteza, kuyezanso, kapena njira ina yowunikira, kutengera mfundo zosatsimikizika komanso za khalidwe zomwe mwagwirizana. Musabise magulu osatsimikizika poyesa mobwerezabwereza mpaka mtengo wodutsa utawonekera.
Kugula kungagwiritse ntchito banja la zinthu za Lanbao PDA ngati njira yowunikira, pomwe kupempha deta yeniyeni ya chitsanzo, kasinthidwe ka zotuluka, ndi mayeso a pulogalamu. [2] Tulutsani sensa pokhapokha ndi maziko olembedwa, zojambula zoyikira, fayilo ya zoikamo, njira yotsimikizira, ndi malangizo osinthira. Zolemba zimenezo zimathandiza kusunga magwiridwe antchito otsimikizika pambuyo pokonza.
Zolemba
[1] Lanbao PDA CR50 mndandanda wa datasheet wolondola kwambiri komanso mikhalidwe yoyesera
[2] Banja la zinthu za sensa yosuntha ya laser ya Lanbao PDA ndi gwero la chithunzi
Mafunso Ofunsidwa Kawirikawiri
Kodi kubwerezabwereza ndi chimodzimodzi ndi kulondola
Ayi. Kubwerezabwereza kumatanthauza kugwirizana pakati pa kuwerengedwa mobwerezabwereza pansi pa mikhalidwe yofotokozedwa. Kulondola kumakhudza kugwirizana ndi kuchuluka komwe kukuyesedwa. Kuchepetsa kokhazikika kumatha kubweretsa kubwerezabwereza kwabwino pomwe mtunda womwe wanenedwawo suli woyenera kuti munthu asankhe bwino.
Kubwerezabwereza kotani komwe kuli kokwanira kuti ndikawone
Sankhani chofunikira kuchokera ku kulekerera kwa magawo, bajeti yosatsimikizika, ndi zotsatira za kugawa kolakwika. Tsimikizirani dongosolo lonse loyikidwa. Mtengo wa katalogi wokha sungathe kukhazikitsa malire oyenera olandirira njira yosadziwika.
Kodi sensa yokhala ndi resolution ya ma micrometer 10 ingayang'ane kulekerera kwa ma micrometer 10?
Kuthekera kokha sikuthandiza lingaliro limenelo. Phokoso, tsankho, mzere, zotsatira za kutentha, kusiyana kwa zida, ndi khalidwe la kupeza zitha kukhala zazikulu kuposa kuchuluka komwe kukuwonetsedwa. Kulekerera kumafuna kafukufuku woyenera wa luso loyezera.
Chifukwa chiyani mawerengedwe ake sali okhazikika pa chitsulo chowala
Malo owunikira amatha kusintha kuwala komwe kumafika pa wolandila pamene ngodya kapena malo akusintha. Yesani kumaliza kwenikweni ndi mawonekedwe ake. Ngodya yosiyana yoyikira, mawonekedwe a kuwala, kapena ukadaulo wa sensa ungafunike mutayesa kugwiritsa ntchito.
Kodi avareji nthawi zonse imapangitsa kuti kubwerezabwereza kubwerezedwe
Kuchuluka kwa zinthu nthawi zambiri kumachepetsa kusinthasintha kosasinthika kosagwirizana. Sikuchotsa modalirika kusuntha kapena cholakwika chadongosolo, ndipo kungachepetse kuwoneka kwa zinthu zazifupi pazigawo zoyenda. Yerekezerani makonda pa liwiro lofunikira la kupanga.
Kangati sensor iyenera kufufuzidwa
Konzani nthawi kuchokera ku chiopsezo cha njira, kusuntha komwe kwawonedwa, malo ozungulira, ndi mbiri yokonza. Yang'anani kusintha kwa makina pambuyo poyika kapena kusintha masensa. Kuyang'ana zowunikira pa nthawi yodziwika bwino yopangira kumathandiza kuzindikira kusintha kusanachitike gulu lalikulu.
Zomwe ziyenera kutumizidwa kwa wogulitsa kuti ayesedwe bwino
Perekani ziwalo zoyimira, zojambula, zololera, kusintha kwa malo, zoletsa zomangira, liwiro la mzere, tsatanetsatane wa chowongolera, ndi lamulo lofunikira la chisankho. Pemphani miyeso yosaphika ndi kumaliza makonda kuti mayeso athe kubwerezedwanso pamakina.
Nthawi yotumizira: Novembala-11-2026