Niaj hnub no tag nrho - hluav taws xob txhaj tshuaj molding tshuab txais siab - zaus servo motors rau kev txhaj tshuaj, pwm clamping thiab ejector ua. Cov neeg tsav tsheb servo tso zis siab - lub zog siab - zaus hloov tam sim no uas tsim muaj zog dav - spectrum electromagnetic hluav taws xob, yooj yim inducing stray voltage ntawm ib sab thermocouple qis -voltage teeb liab xov hlau, ua rau random kub nyeem ntawv dhia, tsis tseeb siab - ntsuas kub thiab txias. Ib qho yooj yim ib leeg- txheej thaiv cov thermocouples tsis tuaj yeem txwv qhov kev cuam tshuam ntau zaus no; standardized shielding, thaiv thiab av schemes yuav tsum tau tshem tawm cov teeb liab distortion hauv paus.
Core cuam tshuam tsim txoj cai ntawm servo electromagnetic hluav taws xob. Servo tsav hloov zaus mus txog ob peb kilohertz, ua alternating magnetic teb uas nkag mus nyias ib leeg -txheej hlau shielding tes tsho. Lub thermocouple alloy hlau ntes induced alternating voltage superimposed ntawm lub zog millivolt thermoelectric tej zaum teeb liab xa mus rau tus maub los, distorting tiag tiag kub cov ntaub ntawv. Kev cuam tshuam kev siv zog peaks thaum lub sij hawm qhib pwm ceev, ceev txhaj tshuaj acceleration thiab siab - ceev valve koob txav, sib txuam ua hauj lwm atherosclerosis ntawm servo motors thiab ua rau lub sij hawm kub hloov pauv synchronized nrog lub tshuab txav mus los. Ungrounded thermocouples nrog tsis zoo rwb thaiv tsev ntawm kev sib txuas thiab sheath amplify cuam tshuam cov teeb liab ntau dua li cov av hauv av.
Plaub txheej tiv thaiv- cuam tshuam kev teeb tsa rau servo- nruab tag nrho - hluav taws xob txhaj pwm.
1. Ob chav - txheej braided puv - ntaub thaiv npog thermocouple yuav tsum sib phim. Xaiv cov thermocouples nrog sab hauv nyias shielding mesh + txheej tuab stainless hlau braided ob -txheej hlau tiv thaiv. Lub dual hlau mesh tsim ib lub tawb Faraday uas thaiv siab - zaus servo magnetic teb nkag mus; ib zaug - txheej thaiv kev sojntsuam yog txwv tsis pub tag nrho rau tag nrho - tshuab hluav taws xob kub khiav tshuab. Lub shielding mesh yuav tsum txuas mus rau tag nrho txoj kev mus rau lub connector vaj tse yam tsis muaj truncated luv seem exposing hlau hlau cores.
2. Ua kom tiav lub cev sib cais ntawm cov teeb liab thaiv thiab servo fais fab cables. Tshuab hluav taws xob txee layout cais cov thermocouple compensating cables thiab servo siab - fais fab tsav cov xov hlau rau hauv cov hlau tsis muaj zog nrog 5 hli steel cais cov partitions. Nyob rau hauv lub pwm phaj, tshuab ob cais hlau grooves nrog ib tug tsawg kawg nkaus qhov sib nrug ntawm 30 hli ntawm thermocouple harnesses thiab valve koob servo cables, zam tej ntsug hla ntawm lub teeb liab thiab lub hwj chim kab. Yog tias kev hla tsis tuaj yeem zam tau vim yog cov qauv pwm, txhim kho tuab steel shielding baffles ntawm qhov kev sib tshuam.
3. Tus qauv ib zaug - taw tes grounding ntawm shielding mesh kom tshem tawm cov voj hauv av cuam tshuam. Tsuas yog txuas cov thermocouple ob - txheej thaiv mesh mus rau hauv av davhlau ya nyob twg ntawm cov kub khiav tswj lub txee ntawm ib kawg (lub txee tswj sab), tawm hauv pwm qhov kawg ntawm qhov thaiv mesh ntab yam tsis muaj av. Ob- xaus grounding tsim ib lub voj hauv av kaw uas ua rau kom muaj kev cuam tshuam servo cuam tshuam, ua rau qhov kub thiab txias dhia yuam kev. Polish grounding terminals kom tshem tawm cov oxide txheej thiab ua kom ntseeg tau qis - tiv thaiv kev sib cuag nrog lub txee hlau ncej.
4. Tsawg- dhau lim sib txuam ntawm cov tswj channel input terminals. Nruab lub teeb liab tshwj xeeb thermocouple qis- dhau cov lim dej ntawm txhua lub channel ntawm lub thawv kub khiav tswj; lub lim attenuates siab -frequency stray voltage generated los ntawm servo tsav tsheb thaum khaws cia siv tau tsawg-frequency thermoelectric kub signals, ntxiv smoothing fluctuating kub nyeem ntawv tom qab shielding thiab wiring optimization.
Ntawm -qhov chaw txiav txim txoj kev rau servo-induced thermocouple cuam tshuam. Saib xyuas qhov ntsuas kub ntawm qhov hloov pauv amplitude: thaum lub servo lub cev muaj zog nres tag nrho nrog lub tshuab zoo li qub, qhov kub ntawm qhov ntsuas kub nyob hauv ± 0.3 degree; Thaum lub servo qhib kev txhaj tshuaj lossis pwm txav, nyeem ntawv dhia ± 3 ~ 8℃tsis xwm yeem, lees paub siab - zaus servo tawg cuam tshuam. Tom qab siv ob qhov thaiv thaiv, sib cais cov hlua hlau thiab ib qho - taw tes hauv av, qhov hloov pauv tuaj yeem tswj tau nyob rau hauv ib txwm ± 0.5℃precision kam rau ua ntawm thermocouples.
