Kutheni kubalulekile ukugcina iPCB yakho icocekile?

Xa ucombulula iingxaki ezingasebenziyo okanye ezingasebenzi kakuhle, iinjineli zihlala ziqhuba ukulinganisa okanye ezinye izixhobo zokuhlalutya ukuqwalasela isekethe kwinqanaba lesikimu. Ukuba ezi ndlela aziyicombululi le ngxaki, kwanezona njineli zibalaseleyo zisenokukhubeka, ziphoxeke, okanye zibhideke. Ndikhe ndadibana nale ntlungu. Ukunqanda ukubetha iziphene ezifanayo, mandikwazise ngengcebiso elula kodwa ebaluleke kakhulu: yigcine icocekile!

Ndithetha ukuthini xa ndisitsho? Oko kwathiwa, izinto ezithile ezisetyenziswa ngexesha lendibano yePCB okanye ukuguqulwa kunokubangela iingxaki ezinzulu zokusebenza kwesekethe ukuba iPCB ayigcinwanga icocekile ngokufanelekileyo. Enye yeengxaki ezixhaphakileyo kule nto yi-flux.

 

Umzobo we-1 ubonisa i-PCB enezixa ezigqithisileyo zentsalela ye-flux.

I-Flux yi-arhente yeekhemikhali esetyenziselwa ukuncedisa kumacandelo e-soldering kwi-PCB. Ngokudabukisayo, ukuba ayisuswanga emva kwe-soldering, i-flux inokuthoba ukuxhathisa ukugquma komphezulu we-PCB, kubangele ukuthotywa okukhulu ekusebenzeni kwesekethe kwinkqubo!

umfanekiso 2

Umzobo we-2 yisekethe yovavanyo endiyisebenzisileyo ukubonisa iziphumo zokungcoliseka kwe-flux. Uthungelwano lwebhulorho ye-Wheatstone elungeleleneyo eyenziwe yasebenza yi-2.5V yombane yereferensi ilinganisa i-sensor yebhulorho ene-impedance ephezulu. Iziphumo ze-sensor yebhuloho ehlukeneyo ye-VIN + - VIN- inokudibaniswa ne-INA333 kunye nenzuzo ye-101V / V. Ehlabathini elifanelekileyo, ekubeni ibhuloho ilingana, i-VIN + - VIN- = 0V. Kodwa ungcoliseko lwe-flux lunokubangela ukuba i-voltage ye-sensor yebhulorho ihambe kancinci ngokuhamba kwexesha.

Kolu vavanyo, emva kwendibano, ndabhala kwakhona utshintsho kwi-VIN- kunye ne-VOUT iyure enye emva kwamanqanaba ahlukeneyo okucoca:

1.Ayicocekanga;

2.Coca ngesandla kunye nomoya womile;

3.Ukucoca i-Ultrasonic, ukomisa umoya, ukubhaka.

umfanekiso 3

Njengoko kunokubonwa kwi-Figure 3, ukungcoliseka kwe-flux kunempembelelo enzima kwintsebenzo yokuphuma kwenzwa yebhuloho. Ngaphandle kokucoca okanye ukucocwa ngesandla, i-voltage ye-sensor sensor ayizange ifike kumbane olindelekileyo malunga ne-VREF / 2, nasemva kwexesha lokuzinza kweyure enye. Ukongeza, iibhodi zeesekethe ezingacocekanga zikwabonisa ingqokelela ebalulekileyo yengxolo yangaphandle. Emva kokucoca ngebhafu ye-ultrasonic kunye nokomisa ngokupheleleyo, i-voltage sensor yebhuloho yayiqinile.

umfanekiso 4

Ukujonga i-voltage ephumayo ye-INA333, siqhubeka sibona ukuthotywa kokusebenza okubangelwa ukucoca ngokungafanelekanga.

1.Iibhodi ezingahlambulukanga zibonise iimpazamo ze-DC, ixesha elide lokuzinzisa, kunye ne-pickup yengxolo enzima yangaphandle;

2.Iibhodi zesekethe ezicociweyo ngezandla zibonisa ingxolo engaqhelekanga ephantsi kakhulu. Ekugqibeleni ndifumene unobangela-yayiyi-loop yokupholisa umoya ngaphakathi kwiziko lovavanyo!

3.Njengoko bekulindelekile, iibhodi ezicocwe ngokufanelekileyo kunye nezomisiweyo ziqhube kakuhle kakhulu, kungabikho ukukhukuliseka okwenzekayo nangaliphi na ixesha ngexesha lovavanyo.

 

Isishwankathelo, ukucocwa kwe-flux engafanelekanga kunokubangela ukuthotywa kwentsebenzo enzulu, ngakumbi kwiisekethe ze-DC ezichanekileyo. Njengazo zonke iiPCB ezidityaniswe ngesandla okanye eziguquliweyo, qiniseka ukuba usebenzisa ibhafu ye-ultrasonic (okanye indlela efanayo) yokucoca okokugqibela. Bhaka i-PCB edityanisiweyo kunye necociweyo kwiqondo lobushushu elingaphezulu kancinci ukususa nabuphi na ubumanzi obushiyekileyo emva kokumiswa komoya usebenzisa icompressor yomoya. Ngokuqhelekileyo sibhaka kwi-70 ° C imizuzu eyi-10.

Eli cebiso lilula "ligcine licocekile" kufuneka likuncede ukuba uchithe ixesha elincinci lokulungisa iingxaki kunye nexesha elingakumbi lokuyila iisekethe ezichanekileyo nezichanekileyo!

 

Xuange Electronicsuzibophelele ekubeni ngumvelisi ohamba phambili wehlabathi wamacandelo magnetic, ukubonelela kungekuphela nje iimveliso ezisemgangathweni kodwa kunye neenkonzo zoyilo ezilungiselelwe ukwenza abathengi bafikelele kwiziphumo ezingcono. Zonke izinto ezisetyenziswe kwiimveliso zidlulile i-UL / CEisiqinisekisokwaye baye bavavanywa ngokungqongqo kunye nokuhlolwa ngaphambi kokuthunyelwa ukuze kuqinisekiswe umgangatho ozinzileyo kunye nokuqinisekisa abathengi. Liqabane elithembekileyo lexesha elide labavelisi abaphambili bobonelelo lwamandla!
Ngemibuzo yemveliso, nceda ujonge iiphepha lemveliso, nawe wamkelekile ukubaQhagamshelana nathingokusebenzisa iinkcukacha zoqhagamshelwano ezingezantsi, siya kukuphendula phakathi kwama-24.

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