Izintambo Zokusampula ze-BMS: Indlela Izintambo Ezincane Eziqapha Ngayo Ngokunembile Amaseli Ebhethri Amakhulu

Ezinhlelweni zokuphathwa kwamabhethri, kuphakama umbuzo ovamile: izintambo ezincane zokuthatha amasampula zingasingatha kanjani ukuqapha i-voltage yamaseli amakhulu ngaphandle kwezinkinga? Impendulo itholakala ekwakhiweni okuyisisekelo kobuchwepheshe be-Battery Management System (BMS). Izintambo zokuthatha amasampula zinikezelwe ekutholeni i-voltage, hhayi ekudlulisweni kwamandla, okufana nokusebenzisa i-multimeter ukukala i-voltage yebhethri ngokuxhumana nama-terminal.

Kwiphakethe lebhethri eliwuchungechunge lwama-20, i-sampling harness ngokuvamile inezintambo ezingu-21 (ezingu-20 ezinhle + 1 ezivamile ezimbi). Ipheya ngalinye eliseduze lilinganisa i-voltage yeseli elilodwa. Le nqubo akuyona indlela yokulinganisa esebenzayo kodwa isiteshi sokudlulisa isignali esingasebenzi. Isimiso esiyinhloko sihilela ukuvimba okuphezulu kokufaka, okudonsa ugesi omncane—ngokuvamile ama-microampere (μA)—okuyinto encane uma kuqhathaniswa nomthamo weseli. Ngokusho koMthetho ka-Ohm, nge-currents yezinga le-μA kanye nokumelana kwentambo kwama-ohms ambalwa, ukwehla kwe-voltage kumane kuyi-microvolts (μV), okuqinisekisa ukunemba ngaphandle kokuthinta ukusebenza.

Kodwa-ke, ukufakwa okufanele kubalulekile. Ukufakwa kwezintambo okungalungile—njengokuxhumeka okuphambene noma okuphambene—kungabangela amaphutha kagesi, okuholela ekuhluleleni kabi ukuvikelwa kwe-BMS (isb., izisusa ezingamanga ze-over/under-voltage). Amacala amakhulu angaveza izintambo kuma-voltage aphezulu, okubangela ukushisa ngokweqile, ukuncibilika, noma ukulimala kwesekethe ye-BMS. Njalo qinisekisa ukulandelana kwezintambo ngaphambi kokuxhuma i-BMS ukuze uvimbele lezi zingozi. Ngakho-ke, izintambo ezincane zanele ukusampula kagesi ngenxa yezidingo zamandla aphansi, kodwa ukufakwa ngokunemba kuqinisekisa ukuthembeka.

ukuqapha i-voltage

Isikhathi sokuthunyelwe: Septhemba-30-2025

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