Masensa a LVDT: chida champhamvu chodziwira kusalala

Mu mafakitale omwe akupita patsogolo mofulumira, kusalala kwa malo opangira zinthu ndi chizindikiro chofunikira cha mtundu wa zinthu. Kuzindikira kusalala kumagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, monga kupanga magalimoto, ndege, ndi zamagetsi. Zitsanzo zikuphatikizapo kuwunika kusalala kwa mabatire kapena nyumba zamafoni m'makampani opanga magalimoto, komanso kuwunika kusalala kwa mapanelo a LCD m'makampani opanga ma semiconductor.

Komabe, njira zachikhalidwe zodziwira kuphwanyika zimakumana ndi mavuto monga kusagwira bwino ntchito komanso kulondola kosayenera. Mosiyana ndi zimenezi, masensa a LVDT (Linear Variable Differential Transformer), omwe ali ndi ubwino wolondola kwambiri, kudalirika kwambiri, komanso kuyeza popanda kuphwanyika (mwachitsanzo: Ma LVDT amagwiritsa ntchito probe kuti agwire pamwamba pa chinthu, zomwe zimapangitsa kuti pakati pa chinthucho pakhale kuphwanyika popanda kuphwanyika komanso molondola kwambiri), tsopano akugwiritsidwa ntchito kwambiri pozindikira kuphwanyika kwa chinthu masiku ano.

Mfundo Yogwirira Ntchito:

LVDT ndi sensa yopangira maginito, ndipo mfundo yake yogwirira ntchito imachokera ku lamulo la Faraday la kulowetsa maginito. LVDT imakhala ndi coil yoyamba ndi ma coil awiri achiwiri, onse ozungulira pakati pa ferromagnetic. Pakati pa center ikakhala pakati, ma voltage otulutsa a ma coil awiri achiwiri amakhala ofanana kukula ndi zosiyana mu gawo, zomwe zimapangitsa kuti pakhale zero output voltage. Pakati pa center ikasuntha mozungulira, ma voltage otulutsa a ma coil awiri achiwiri amasintha, ndipo kusiyana kumakhala kofanana ndi kusuntha kwa pakati. Poyesa kusintha kwa voliyumu yotulutsa, kusuntha kwa pakati kumatha kuyezedwa molondola.
 
Nyumba ya LVDT nthawi zambiri imapangidwa ndi chivundikiro chosapanga dzimbiri choteteza, chokhala ndi gawo loteteza maginito lokhala ndi mphamvu zambiri zoyendera maginito komanso gawo loletsa chinyezi lomwe limakulungidwa pakati. Izi zimathandiza kuti ligwiritsidwe ntchito m'malo ovuta monga mphamvu zamaginito amphamvu, mafunde amphamvu, chinyezi, ndi fumbi. Ma LVDT ena apamwamba kwambiri amagwiritsa ntchito zipangizo zapadera (monga zisindikizo za ceramic kapena nyumba za Hastelloy) ndipo amatha kugwira ntchito m'malo otentha kwambiri a 250°C kapena m'malo opanikizika kwambiri a 1000 bar.

Zinthu zazikulu za LVDT

Muyeso Wopanda Kukangana:Kawirikawiri sipakhala kukhudzana kwenikweni pakati pa pakati pa cholumikizira ndi kapangidwe ka coil, zomwe zikutanthauza kuti LVDT ndi chipangizo chopanda kukangana. Izi zimalola kugwiritsidwa ntchito poyesa zinthu zofunika kwambiri zomwe sizingalole kukangana.

Moyo Wopanda Malire wa Makina: Popeza nthawi zambiri sipamakhala kukhudzana pakati pa kapangidwe ka LVDT ndi koyilo, palibe ziwalo zomwe zingakhudze kapena kutha, zomwe zimapatsa ma LVDT moyo wopanda malire wa makina. Izi ndizofunikira kwambiri pakugwiritsa ntchito kodalirika kwambiri.

Kusasinthika Kopanda Malire: Ma LVDT amatha kuyeza kusintha kochepa kwambiri pamalo apakati chifukwa amagwira ntchito pogwiritsa ntchito mfundo zolumikizira zamagetsi mu kapangidwe kopanda kukangana. Choletsa chokha pa resolution ndi phokoso mu signal conditioner ndi resolution ya output display.

Kubwerezabwereza kwa Null Point:Malo omwe LVDT ili ndi null point yokhazikika komanso yobwerezabwereza, ngakhale kutentha kwake kwakukulu. Izi zimapangitsa kuti ma LVDT azigwira ntchito bwino ngati masensa a null position mu makina owongolera otsekedwa.

Kukana kwa Cross-Axis:Ma LVDT ndi ozindikira kwambiri kayendedwe ka axial ka pakati ndipo sakhudzidwa kwambiri ndi kayendedwe ka radial. Izi zimathandiza kuti ma LVDT agwiritsidwe ntchito poyesa ma cores omwe sakuyenda molunjika molondola.

Yankho Lofulumira Kwambiri:Kusowa kwa kukangana panthawi yogwira ntchito wamba kumalola LVDT kuyankha mwachangu kwambiri kusintha kwa malo apakati. Kuyankha kwamphamvu kwa sensa ya LVDT yokha kumangolekeredwa ndi zotsatira za inertial za kulemera pang'ono kwapakati.

Zotsatira Zonse:Chotulutsa cha LVDT ndi chizindikiro cha analogi chogwirizana mwachindunji ndi malo. Ngati magetsi azima, kuyeza kumatha kuyambiranso popanda kubwezeretsanso (magetsi ayenera kuyatsidwanso kuti apeze mtengo wosinthira wamagetsi pambuyo pa kuzima kwa magetsi).

Kugwiritsa ntchito kwa LVDT wamba [Kuzindikira Kusalala]:

  • Kuzindikira Kutsika kwa Malo Ogwirira Ntchito: Mwa kukhudza pamwamba pa chinthu chogwirira ntchito ndi choyezera cha LVDT, kusiyana kwa kutalika kwa pamwamba kumatha kuyezedwa, potero kuwunika kusalala kwake.
  • Kuzindikira Kusalala kwa Chitsulo cha Mapepala: Pakupanga chitsulo cha pepala, kapangidwe ka LVDT kokonzedwa bwino, kuphatikiza ndi njira yojambulira yokha, kumatha kupanga mapu a mapepala akuluakulu osalala pamwamba.
  • Kuzindikira Kusalala kwa Wafer:Mu makampani opanga ma semiconductor, kusalala kwa ma wafer kumakhudza kwambiri magwiridwe antchito a chip. Ma LVDT angagwiritsidwe ntchito kuyeza molondola kusalala kwa malo a wafer. (Dziwani: Pozindikira kusalala kwa wafer, LVDT iyenera kukhala ndi ma probe opepuka komanso kapangidwe ka mphamvu yochepa yolumikizirana, zomwe zimapangitsa kuti ikhale yoyenera pazochitika zomwe kuwonongeka kwa pamwamba sikuloledwa.)

Sensa ya LANBAO LVDT ikulangizidwa

LVDT

 

  • Kubwerezabwereza kwa mulingo wa micrometer
  • Pali mitundu yosiyanasiyana ya ma ranges kuyambira 5 mpaka 20mm.
  • Zosankha zonse zotulutsa, kuphatikizapo chizindikiro cha digito, analogi, ndi 485.
  • Kuthamanga kwa mutu kotsika ngati 3N, komwe kumatha kuzindikira kosakwiya pamalo onse awiri agalasi achitsulo.
  • Miyeso yakunja yolemera kuti ikwaniritse malo osiyanasiyana ogwiritsira ntchito.
  • Buku lotsogolera kusankha
Mtundu Dzina la gawo Chitsanzo Mzere Mzere Kubwerezabwereza Zotsatira Gulu la chitetezo
Mtundu wa choyezera chophatikizana Chokulitsa mawu LVA-ESJBI4D1M / / / 4-20mA yapano, njira zitatu zotulutsira digito IP40
Chofufuzira chozindikira LVR-VM15R01 0-15mm ± 0.2%FS
(25℃)
8μm(25℃) / IP65
LVR-VM10R01 0-10mm
LVR-VM5R01 0-5mm
Mtundu wophatikizidwa Kuzindikira kophatikizana LVR-VM20R01 0-20mm ± 0.25%FS
(25℃)
8μm(25℃) RS485
LVR-VM15R01 0-15mm
LVR-VM10R01 0-10mm
LVR-VM5R01 0-5mm
LVR-SVM10DR01 0-10mm

 


Nthawi yotumizira: Feb-11-2025