Luthini uluhlu lokulinganisa kunye nomlinganiselo wokujika?
Uluhlu lokulinganisa lixabiso lomahluko phakathi kwemida ephezulu nesezantsi yoluhlu oluqhelekileyo lwesixhobo. Ukuba umda ophantsi wokulinganisa isixhobo ngu-zero, ngoko ixabiso eliphezulu lobungakanani obubonakalayo obunokulinganiswa lilingana noluhlu lwalo lokulinganisa. Umzekelo, uluhlu lokulinganisa lwe-ammeter lixabiso eliphezulu lombane onokulinganiswa. Umlinganiselo wokutshintsha ngumlinganiselo woluhlu lokulinganisa oluphezulu ukuya kuluhlu lokulinganisa oluncinci lwesixhobo. Umlinganiselo omkhulu wokutshintsha unika indawo engakumbi yokulungiswa. Xa iimeko zenkqubo zitshintsha, kulula ukutshintsha uluhlu lokulinganisa lwesixhobo sokudlulisa ngaphandle kokutshintsha isixhobo. Kunokunciphisa nenani lezixhobo ezisele ezikhoyo, nto leyo eluncedo kulawulo kwaye ithintela ukusilela kwemali. Ke ngoko, umlinganiselo wokutshintsha wesixhobo sokudlulisa luphawu lobuchwephesha olubaluleke kakhulu. Xa ukhetha isixhobo, akunjalo ukuba umlinganiselo wokutshintsha ukhulu, kokukhona ukusebenza kwesixhobo kuba ngcono. Kukwakho nombono woluhlu lokusebenza. Umzekelo, kwisixhobo sokudlulisa uxinzelelo esinoluhlu lokulinganisa lwe-0-250 kPa, xa uxinzelelo lokwenyani esilulinganisayo luyi-60 kPa, uluhlu lokulinganisa esifanele silukhethe luyi-0-100 kPa, kwaye olu luhlu lokulinganisa luluhlu lokusebenza. Ukuba umlinganiselo wokujika kwale transmitter yoxinzelelo yi-10:1, kuthetha ukuba, ngelixa kuqinisekiswa ukuchaneka kwale transmitter yoxinzelelo, uluhlu lokusebenza oluncinci esinokulukhetha luyi-0-25 kPa. Ukuba uluhlu lokusebenza luncinci kuneli xabiso, ukuchaneka kwesixhobo kuya kuncipha; ngelixa ukuba uluhlu lokusebenza luphakathi kwe-0-25 kPa kunye ne-0-250 kPa, ukuchaneka kwesixhobo kunokuqinisekiswa. Ngoko ke, uluhlu lokusebenza kunye noluhlu lokulinganisa oluphezulu akufuneki lwahluke kakhulu, kungenjalo ukuchaneka kwesixhobo kuya kwehla. Kwiimitha zamanzi abandayo, umlinganiselo wokujika ngumlinganiselo wokuhamba okulinganisiweyo (Q3) kukuhamba okuncinci (Q1), kwaye unokumelwa ngunobumba "R" olandelwa linani.
Ixesha leposi: Epreli-13-2025