Roj siab sensor 161-1705-07 rau miv excavator E330C

txoj cai ntawm kev ua haujlwm

Sensor tsim los ntawm lub hauv paus ntsiab lus ntawm hlau expansion

kub sensor

kub sensor

Cov hlau yuav tsim qhov sib txuas ntxiv tom qab kev hloov pauv ib puag ncig, yog li lub sensor tuaj yeem hloov lub teeb liab ntawm cov tshuaj tiv thaiv no hauv ntau txoj kev. rau

Bimetallic nti sensor

Bimetallic daim ntawv muaj ob daim hlau nrog sib txawv expansion coefficients daig ua ke. Nrog rau kev hloov pauv ntawm qhov kub thiab txias, qhov nthuav dav ntawm cov khoom A yog siab dua li ntawm lwm cov hlau, uas ua rau cov ntawv hlau khoov. Lub curvature ntawm qhov khoov tuaj yeem hloov mus rau hauv cov teeb liab tso zis.

Bimetal pas nrig thiab hlau raj sensor

Nrog rau qhov kub thiab txias, qhov ntev ntawm cov hlau raj (khoom A) nce, tab sis qhov ntev ntawm unexpanded steel pas nrig (hlau B) tsis, yog li ntawd lub linear expansion ntawm hlau raj yuav kis tau los ntawm kev hloov ntawm txoj hauj lwm. Nyob rau hauv lem, qhov no linear expansion yuav hloov mus rau hauv ib tug tso zis teeb liab.

Sensor rau deformation nkhaus tsim cov kua thiab roj

Thaum qhov kub thiab txias hloov, qhov ntim ntawm cov kua thiab roj kuj yuav hloov raws li.

Ntau hom qauv tuaj yeem hloov qhov kev hloov pauv no mus rau hauv txoj haujlwm hloov pauv, yog li tsim cov khoom hloov pauv hloov pauv (potentiometer, induced deviation, baffle, thiab lwm yam).

Kev ntsuas tsis kam

Nrog rau kev hloov ntawm qhov kub thiab txias, qhov kev tiv thaiv tus nqi ntawm cov hlau kuj hloov.

Rau cov hlau sib txawv, qhov kev hloov ntawm cov nqi kuj sib txawv txhua lub sij hawm qhov kub hloov pauv los ntawm ib qho degree, thiab tus nqi kuj tuaj yeem siv ncaj qha raws li cov teeb liab tso tawm.

Muaj ob hom kev hloov pauv hloov.

Zoo kub coefficient

Kub nce = resistance nce

Kub txo = resistance txo.

tsis zoo kub coefficient

Kub nce = tsis kam txo.

Kub txo = kuj nce.

Thermocouple kev ntsuas

Lub thermocouple muaj ob txoj hlua hlau ntawm cov khoom sib txawv, uas yog welded ua ke ntawm qhov kawg. Los ntawm kev ntsuas qhov ntsuas kub ntawm qhov tsis muaj cua sov, qhov ntsuas kub ntawm qhov cua sov tuaj yeem paub tseeb. Vim tias nws yuav tsum muaj ob lub conductors ntawm cov khoom sib txawv, nws yog hu ua thermocouple. Thermocouples ua los ntawm cov khoom sib txawv yog siv nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias, thiab lawv qhov rhiab heev kuj txawv. Qhov rhiab heev ntawm cov thermocouple yog hais txog kev hloov pauv ntawm cov zis muaj peev xwm sib txawv thaum lub ntsuas kub kub hloov ntawm 1 ℃. Rau feem ntau cov thermocouples txhawb nqa los ntawm cov khoom siv hlau, tus nqi no yog kwv yees li 5 ~ 40 microvolts / ℃.

Vim tias qhov rhiab heev ntawm qhov ntsuas kub ntawm thermocouple tsis muaj dab tsi cuam tshuam nrog cov khoom tuab, nws tuaj yeem ua los ntawm cov khoom zoo heev. Tsis tas li ntawd, vim qhov zoo ntawm cov khoom siv hlau siv los ua cov thermocouple, qhov ntsuas kub me me no muaj cov lus teb ceev heev thiab tuaj yeem ntsuas cov txheej txheem ntawm kev hloov pauv sai.