Enye yezona ndawo zokulinganisa ezikhethekileyo ziindlela ezivulekileyo, apho ukuhamba kolwelo kumphezulu okhululekileyo ngamanye amaxesha "kuvulelekile" emoyeni. Oku kunokuba nzima ukukulinganisa, kodwa ingqalelo engqongqo kubude bokuhamba kunye nendawo yeflemu kunokunceda ukuphucula ukuchaneka nokuqinisekiswa.
Kwihlabathi lokulinganisa amanzi okusebenzayo nokuchanekileyo, kukho izixhobo ezininzi onokukhetha kuzo. Ngokuxhomekeke kwimeko, ukuhamba kolwelo kunye nendawo apho kufuneka khona ukulinganisa amanzi, kusenokwenzeka ukuba kukho isisombululo sokulinganisa ulwelo esisebenzayo. Nangona kunjalo, enye yezona ndawo zokulinganisa ezikhethekileyo yile yemijelo evulekileyo - equka imijelo yokunkcenkceshela, imilambo, iinkqubo zokusebenza kwamanzi, kunye nokuhamba kweenkqubo zococeko kunye namanzi emvula - apho ukuhamba kolwelo kumphezulu okhululekileyo ngamanye amaxesha "kuvulelekile" emoyeni.
Ukulinganisa ukuhamba komjelo ovulekileyo kunokuba nzima. Iitshaneli ezivulekileyo azixinzelelwanga, ngoko ke izinto zokulinganisa umbhobho opheleleyo ezifana neVenturi, i-electromagnetic okanye i-strap-on transit-time meter azinakusebenza. Indlela eqhelekileyo yokulinganisa ukuhamba komjelo ovulekileyo kukulinganisa ukuphakama okanye "intloko" yolwelo njengoko ludlula umda (njenge-flume okanye i-weir) kumjelo. Kuyo nayiphi na itshaneli evulekileyo ehamba ngokukhululekileyo kwi-element ethile elawulwayo ye-primary metering, ukuphakama kokuhamba (intloko) kunokuba luphawu oluchanekileyo lomthamo wokuhamba kwaye ke ngoko lubonelela ngomlinganiselo ofanelekileyo wesantya sokuhamba.
Emva koko i-Doppler radar water level flowmeter esiyiphuhlisileyo inokufikelela ekulinganiseni ngokuchanekileyo.
Isiphelo
Ukulinganisa ukuhamba ngokuchanekileyo kwemisele evulekileyo kuya kuba yinto ebalulekileyo ngakumbi. Ukuthambeka okukhulu, ukutyibilika okanye utshintsho olukhulu kwijiyometri kunokuchaphazela kakubi ukuchaneka kunye nokuthembeka kweflume yendabuko yeParshall. Ngenxa yokuncipha kwamanzi omlambo afumanekayo kunye nokubaluleka kokulinganisa kunye nokulawula ukuhamba kolwelo lwelindle kunye nezinye iindlela zokuphuma kolwelo oluvulekileyo, ukuchaneka kufuneka kuthathelwe ingqalelo ukuze kukhethwe isisombululo esisebenzayo. Ukuze kunikezelwe iziphumo ezithembekileyo nezilandelekayo kufuna ukujonga ngaphaya kweminikelo yendabuko ukuya kwisizukulwana esilandelayo sezisombululo zokulinganisa ukuhamba okulandelekayo ezinokuqinisekiswa.
Ixesha leposi: Oktobha-14-2024