Khulisa Ukunemba Kwesilinganiso: Qonda Iphutha Eliphelele, Elihlobene, Nereferensi

Ekukaleni okuzenzakalelayo nasembonini, ukunemba kubalulekile. Imigomo efana ne-“±1% FS” noma “ikilasi elingu-0.5″ ngokuvamile ivela kumininingwane yedatha yethuluzi—kodwa asho ukuthini ngempela? Ukuqonda iphutha eliphelele, iphutha elihlobene, nephutha lereferensi (isilinganiso esigcwele) kubalulekile ekukhetheni amathuluzi okulinganisa afanele nokuqinisekisa ukunemba kwenqubo. Lo mhlahlandlela wehlukanisa lawa mamethrikhi amaphutha angukhiye ngezibonelo ezilula, namathiphu angokoqobo.

1. Iphutha Eliphelele: Kude Kangakanani Ukufunda Kwakho?

Incazelo:

Iphutha eliphelele umehluko phakathi kwevelu elinganisiwe kanye nenani langempela lenani. Ibonisa ukuchezuka okungaphekiwe—okuhle noma okungekuhle—phakathi kwalokho okufundwayo nalokho okuyiqiniso.

Ifomula:

Isibonelo:

Uma izinga lokugeleza langempela lingu-10.00 m³/s, futhi i-flowmeter ifundeka ngokuthi 10.01 m³/s noma 9.99 m³/s, iphutha eliphelele ngu-±0.01 m³/s.

2. Iphutha Elihlobene: Ukulinganisa Umthelela Wephutha

Incazelo:

Iphutha elihlobene liveza iphutha eliphelele njengephesenti yenani elilinganisiwe, okwenza kube lula ukuqhathanisa ezikalini ezihlukene.

Ifomula:

Isibonelo:

Iphutha elingu-1 kg entweni engu-50 kg liholela ephutheni elihlobene lika-2%, elibonisa ukuthi ukuchezuka kubaluleke kangakanani kumongo.

3. Iphutha Lereferensi (Iphutha Lesikali Esigcwele): Imethrikhi Eyintandokazi Yomkhakha

Incazelo:

Iphutha lesithenjwa, elivame ukubizwa ngephutha lesikali esigcwele (FS), iphutha eliphelele njengephesenti lobubanzi obulinganisekayo bethuluzi—hhayi nje inani elilinganiselwe. Yindlela ejwayelekile abakhiqizi bemethrikhi abayisebenzisayo ukuchaza ukunemba.

Ifomula:

Isibonelo:

Uma igeji yokucindezela inobubanzi bebha engu-0–100 kanye nephutha eliphelele lebha engu-±2, iphutha layo lesithenjwa lithi ±2%FS—alixhomekile ekufundweni kokucindezela kwangempela.

Kungani Kubalulekile: Khetha Ithuluzi Elifanele Ngokuzethemba

Lawa mamethrikhi wephutha awawona nje amazwibela—athinta ngokuqondile ukulawulwa kwenqubo, ikhwalithi yomkhiqizo, nokuthobela imithetho. Phakathi kwazo, iphutha lesithenjwa lisetshenziswa kakhulu ekuhlukaniseni ukunemba kwezinsimbi.

Ithiphu Lochwepheshe: Ukukhetha ububanzi besilinganiso obuncane ensimbini enamabanga amaningi kunciphisa iphutha eliphelele lokunemba okufanayo kwe-%FS—ukuthuthukisa ukunemba.

Kahle Izilinganiso Zakho. Lungiselela Ukunemba Kwakho.

Ngokuqonda nokusebenzisa le miqondo emithathu yamaphutha, onjiniyela nochwepheshe bangakhetha amathuluzi ngokuhlakanipha okukhulu, bahumushe imiphumela ngokuzethemba kakhudlwana, futhi baklame amasistimu anembe kakhudlwana ezindaweni ezizenzakalelayo nokulawula.