DIY cov lus qhia rau tus pas ntsuas kub kub
Lub ntsuas cua sov hlau yog tsim los ntawm qhov ntsuas kub ntsuas hlau thiab ib lub 'meter'.
Yog tias koj muaj digital multimeter ntawm tes uas tuaj yeem ntsuas qhov kub thiab txias, thiab qhov kev sojntsuam yog thermocouple, nws yooj yim heev. Vim tias feem ntau cov thermocouple no kuj yog hom K, nws yog qhov zoo rau kev sib txuas cov zis ntawm qhov ntsuas kub ntawm cov xaim xaim ncaj qha mus rau qhov ntsuas kub ntawm multimeter! Qhov kub thiab txias yog tso tawm ncaj qha.
Yog tias koj muaj lub tshuab hluav taws xob digital tsis tuaj yeem ntsuas qhov ntsuas kub, ces koj tsuas tuaj yeem siv nws 200mV iav los ntsuas qhov voltage, thiab tom qab ntawd xyuas lub rooj, hloov mus rau qhov ntsuas kub.
Cov kab kub-rhiab tuaj yeem siv nrog lub teeb dawb 191 tus pas ntsuas kub, siv ntev npaum li kev siv qhov zoo. Cov kab rhiab heev belongs rau cov khoom siv, nrog txog 50 lub sij hawm los hloov ib qho los xyuas kom meej qhov tseeb, yog li nws yog ib qho yooj yim mus yuav.
Kub-sensitive kab yog Mercedes-Benz cov cim kev lag luam zoo li qub, qhov nruab nrab ntawm qhov ntsuas kub-rhiab, ua rau peb kab, qhov kawg ntawm lub voj voog siv los txuas lub davhlau ya nyob twg. Qhov tseeb, nws yog ua los ntawm ob kab, muaj cov kab liab ntawm cov kab zoo, xiav teeb ntawm cov kab tsis zoo, muaj ib sab ntawm ob kab entangled ua ke, tsis yog cov teeb liab kab, feem ntau yog siv los txhawb, vim peb sab los txhawb lub ruaj.
Lub luag haujlwm tseem ceeb yog ua lub txee rau cov khoom siv hluav taws xob.
Yuav 3 terminal blocks. Yog hais tias cov threads ntawm lub davhlau ya nyob twg thaiv yog loj dua lub voj ntawm cov hlau lead ntawm lub thermocouple, tshem tawm lub voj me me ntawm cov hlau lead thiab tsuas yog rov qab ib lub voj loj rau qhov loj ntawm cov xov ntawm lub davhlau ya nyob twg.
Tom qab ntawd muab lub rooj tsav xwm khib nyiab pov tseg, piv rau qhov loj ntawm qhov zoo xyaum peb lub qhov, tsuas yog ib daim duab peb sab, lub davhlau ya nyob twg ntsia ntawm lub rooj tsavxwm. Thiab tom qab ntawd qhov kub-rhiab kab peb taw txuas nrog cov xov ntawm txhua lub davhlau ya nyob twg, ceev cov txiv ntoo ntawm nws. Thiab ces welded ntawm kab mus rau lub multimeter, nws yog zoo. Raws li qhia:
Kev ntsuas kub, lub taub hau hlau soldering ua ntej ntawm lub tin, thiab tom qab ntawd muab tso rau hauv nruab nrab ntawm cov kab kub-rhiab rau ntawm qhov ntsuas kub-rhiab, tin nto thiab kub-rhiab thaiv kab rov tav sib cuag, thiab qee qhov muaj zog. Qhov ntsuas kub-rhiab heev tuaj yeem ua rau ntawm lub tin, yog li nws tuaj yeem ua rau tag nrho kev sib cuag nrog lub taub hau hlau, qhov ntsuas kub yog qhov tseeb dua. Nyob rau lub sijhawm no, qhov kub thiab txias ntawm multimeter kub iav ncaj qha qhia qhov kub thiab txias.
Yog hais tias qhov ntsuas voltage mV tus nqi, cov lus hloov dua siab tshiab hauv qab no yuav raug siv los hloov qhov hluav taws xob mus rau qhov kub thiab txias, ntxiv rau chav tsev kub, yog qhov kub ntawm cov hlau soldering. Piv txwv li, 12.6mV yog 310 degree, ntxiv rau chav kub xws li 30 degree, qhov kub ntawm lub taub hau hlau yog 340 degree.
Tsis tas li ntawd, tsis txhob siv cov kab ntsuas kub-rhiab, ncaj qha nrog lub ntsuas kub ntawm lub ntsuas kub kom tiv tauj lub taub hau hlau, uas yog, multimeter thermocouple tsis nyob ntawm lub tin, yog li nws tsis tuaj yeem sib cuag nrog lub taub hau hlau. , nws yuav yog me ntsis me dua qhov kub ntawm qhov kub-sensitive kab tawm ntawm tus nqi ntawm qhov kub, tab sis feem ntau tsuas yog me me 2-5 degree los yog li ntawd.
pS: Thaum kuv thawj zaug ua cov kab thermocouple no, qhov kev txhawj xeeb tseem ceeb yog tias lub tshuab hluav taws xob multimeter thermocouple ncaj qha ntsuas lub taub hau hlau yuav tsis raug, yuav yog qhov sib txawv ntawm kaum ob degrees, cov txiaj ntsig tau ua tiav tam sim no thiab pom tias nws tseem zoo heev. raug, tsuas yog qhov sib txawv ntawm ob peb degrees xwb.
