Ib qho kev cuam tshuam ntawm electromagnetic cuam tshuam feem ntau saib tsis pom yog qhov xau tam sim no los ntawm kev laus lossis puas kub khiav cua sov coils. Kev puas tsuaj cua sov coil rwb thaiv tsev tsim alternating to tam sim no uas ntws los ntawm manifold steel pwm thav duab, tsim stray alternating magnetic teb uas distort thermocouple microvolt- theem teeb liab, ua rau kub tsis xwm yeem dhia thiab dag siab / qis kub tswb. Kab lus no txheeb xyuas cov kev cuam tshuam kev cuam tshuam thiab ua tiav cov kev daws teeb meem cais tawm.
Leakage tam sim no cuam tshuam tsim mechanism. Cua sov coils qhwv ib ncig ntawm manifold thiab nozzle hlau cores cia siab rau mica rwb thaiv tsev kom cais cov hlau tsis kam ntawm pwm hlau. Ntev -lub sij hawm siab- kub ci, yas volatile gas corrosion thiab mechanical extrusion crack coil mica rwb thaiv tsev, ua rau cov dej ntws tawm uas ntws mus rau hauv av pwm steel ncej. Cov hlau raug them pwm ua raws li lub cev hluav taws xob loj loj, tsim kom tsawg - zaus hloov cov hlau nplaum uas npog tag nrho cov ntsuas qhov ntsuas kub thiab cov hlua hluav taws xob nyob ze. Thermocouple armored sheaths thiab unshielded extension xov hlau ntes no stray magnetic flux, inducing ntxiv dag millivolt signals superimposed ntawm zoo thermoelectric peev xwm, uas ua rau muaj teeb meem kub nyeem ntawv ntawm tus maub los. Qhov cuam tshuam amplitude nce siab thaum coil rwb thaiv tsev puas tsuaj zuj zus, ua kom muaj zog tom qab pwm pib cua sov thiab tsis muaj zog thaum lub caij txias.
Peb qhov txhaum cai tshwm sim tshwj xeeb rau cov cua sov coil leakage cuam tshuam.
1. Qhov kub thiab txias synchronizes nrog cua sov coil fais fab tso tawm lub voj voog: Kub jumps tshwm sim meej thaum tus maub los hloov hluav taws xob mus rau thaj tsam cua sov, kev nyeem ntawv ruaj khov tshwm sim thaum cua sov fais fab txiav tawm.
2. Kev cuam tshuam ploj mus ib ntus tom qab disconnecting lub faulty cua sov coil fais fab mov; tag nrho cov thermocouple signals rov qab du thiab ruaj khov thaum lub qhov xau coil cheeb tsam raug kaw.
3. Infrared contact probe kev sib piv qhia tau hais tias ruaj offset ntawm tus maub los thermocouple nyeem ntawv thiab qhov tseeb hlau kub, offset amplitude hloov raws li cua sov fais fab feem pua nce thiab ntog.
Kauj ruam-los ntawm- kauj ruam daws teeb meem ib ntus kom paub meej tias muaj kev cuam tshuam los ntawm coil.
Kauj Ruam 1: Sau qhov kub tsis zoo dhia nkhaus ntawm qhov cuam tshuam qhov chaw thermocouple; txiav tawm lub hwj chim rau ib qho chaw cua sov ib qho los ntawm ib qho los soj ntsuam cov teeb liab rov qab. Yog hais tias qhov kub clutter vanishes tom qab kaw ib tug tshwj xeeb coil cheeb tsam, lub kauj muaj rwb thaiv tsev to txhaum.
Kauj Ruam 2: Siv cov ntsuas hluav taws xob tiv thaiv hluav taws xob los ntsuas cov cua sov coil tiv thaiv ntawm cov hlau tsis kam thiab manifold steel; nyeem hauv qab 100MΩ paub meej tias cov coil rwb thaiv tsev tawg thiab tawg tam sim no tiam.
Kauj Ruam 3: Txheeb xyuas cov thermocouple shielding braid grounding state-ib zaug- taw tes grounding tsis ua hauj lwm ua kom muaj kev cuam tshuam cov hlau nplaum sib nqus.
Dual - txheej txheej tshem tawm cov kev daws teeb meem: Kho cov dej ntws tawm thiab ntxiv dag zog rau cov thermocouple los tiv thaiv- cuam tshuam kev sib cais.
1. Kev kho qhov chaw (qhov kev daws teeb meem): Hloov cov kab hluav taws xob uas puas lawm; recoat siab- kub insulating xim ntawm manifold coil mounting grooves kom tsis txhob rov qab rwb thaiv tsev tawg ntawm cov coils tshiab. Ntxuav cov pa roj carbon deposits ntawm coil nto los tiv thaiv corrosive gas los ntawm accelerating rwb thaiv tsev laus.
2. Thermocouple teeb liab sib cais optimization: Txhim kho rau ob npaug - txheej ntawv ci + braided tag nrho shielded txuas xov hlau, nruj me ntsis siv ib zaug -kawg grounding ntawm shielding braid ntawm tus maub los txee, txwv tsis pub ob -kawg grounding forming av voj tam sim no. Cais thermocouple teeb liab thaiv txoj hauv kev los ntawm cov cua sov coil cables los ntawm qhov tsawg kawg nkaus 20cm nrug, txais yuav ntsug ntoo khaub lig layout es tsis txhob muab thaum uas tig mus. Nruab qhov tshwj xeeb thermocouple teeb liab lim modules ntawm lub pwm hlws ris lub thawv kom nqus tau qis -frequency to tam sim no induced clutter. Ntxiv rwb thaiv tsev gaskets ntawm thermocouple armored sheath thiab manifold steel los thaiv cov pwm hlau los ntawm kev xa cov stray tam sim no mus rau lub sensor sab nraud.
Kev soj ntsuam kev tiv thaiv niaj hnub kom tsis txhob muaj qhov cuam tshuam cuam tshuam. Kev ntsuas cua sov coil rwb thaiv tsev tiv thaiv txhua ob lub hlis thaum kho pwm, hloov cov coils nrog kev tiv thaiv qis dua 200MΩ ua ntej ua ntej xau cuam tshuam. Tsis tu ncua ntxuav cua sov coil nto carbon deposits kom qeeb rwb thaiv tsev corrosion puas, txo qhov tshwm sim ntawm to tam sim no tiam thiab tom qab lub teeb liab thermocouple distortion.
