Izinga lokunemba kwesisindo samakhanda amaningi lihlukaniswe kanje

Umbhali: Smartweigh– Isisindo Sezinhloko Eziningi

Ngokusho kwe-International Proposal No. 60 ye-International Organisation for Legal Metrology (OIML), isisindo se-multihead singahlukaniswa sibe amazinga amane okunemba: a, b, c, kanye no-d ngokuya ngokusebenza kwayo okuphelele. Kudingeka imikhawulo encane nephezulu yebanga ngalinye. Isilinganiso esiphezulu senzwa enezinga lokunemba elicacile siboniswa yi-1000.

Isikali samakhanda amaningi. Isibonelo, i-C3 ikhombisa ulwazi mayelana nesikali samakhanda amaningi se-c-class semizuzu engu-3000. Izinzwa ezisetshenziswa ezinhlelweni zokuqinisekisa ukuhweba okujwayelekile kumele zifinyelele izinga le-C3.

Ngamanye amazwi, amaphuzu angu-3000. Isibonelo, isisindo samakhanda amaningi esingu-30t, uma sicabanga ukuthi amaphuzu aso okuhlolwa kwe-metrological angu-3000, amaphuzu aso okuhlolwa kwe-metrological angu-10kg. Uma sicabanga ukuthi amaphuzu akhe okuhlolwa kwesilinganiso angu-2500, amaphuzu akhe okuhlolwa kwesilinganiso angu-12kg.

Kucatshangwa ukuthi inzwa ihlangabezana nezidingo zezinga lemboni kazwelonke ngaphansi kwesilinganiso sokuqinisekiswa kwe-metrological esingu-3000, kanti izinga lenzwa lingu-C3. Uma kungakapheli imizuzu engu-2500 yokuqinisekiswa kwe-metrological ukuze kuhlangatshezwane nezidingo, inzwa isezingeni le-C2.5. Uma ephansi ingafinyelela amaphuzu ayi-1000 kuphela, inzwa isezingeni le-C1, kanti isilinganiso sokuhlolwa kokulinganisa ngalesi sikhathi singama-30kg.

Izinga elifanele lokukhetha. Kuyo yonke inqubo yokukhetha isikali samakhanda amaningi, izinga lokunemba kwenzwa nalo liyinani elibalulekile lesibonakaliso, elibeka engcupheni ukunemba kwesikali sokukala. Okokuqala nokubaluleke kakhulu, kubalulekile ukucabangela imithethonqubo yokhiye yesibonakaliso somthwalo.

Letha ifomula elandelayo ukuze ubale ukuthi inzwa kanye nephaneli yezinsimbi ziyahambisana yini. ithebula lokulinganisa elinamakhanda amaningi kanye nesibonakaliso sokukala. Ukuzwela kokukhipha kwenzwa * kukhuthaza i-voltage yokunikezwa kwamandla * isikali esikhulu sokulinganisa, izinga eliphansi lesikali se-myopia * inani lezinzwa * ububanzi bokulinganisa benzwa.

Isignali yedatha yokukhipha yenzwa akufanele icace esignalini yedatha yokufaka echazwe yiphaneli yethuluzi. Uma sicabanga ukuthi inani elithile lingumshini wokupakisha ongama-25kg, isikali esisebenza kahle kakhulu semizuzu eyi-1000 sikhetha izinzwa ezi-3, inani lingu-25kg, kanti ukuzwela kungu-2.0±0.008mV/V, isikali esine-voltage yokusebenza ye-arc engu-12V sikhetha ithebula lesisindo samakhanda amaningi. Thola ukuthi inzwa nedeshibhodi ziyafana yini.

Funda izinto bese uthola ukuthi isignali yedatha yokufaka kuphaneli yezinsimbi ingu-2x12x25/1000x3x25=8μV/d>0.6μV/d. Ngakho-ke, ziyafana.

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