Ingcamango yeentlobo zoxinzelelo, inzwa kunye ne-transmitter

Uxinzelelo: Amandla olwelo oluphakathi olusebenza kwindawo yeyunithi. Iyunithi yayo esemthethweni yokulinganisa i-pascal, efanekiselwa yiPa.

Uxinzelelo olupheleleyo (P_A): Uxinzelelo olulinganiswa ngokusekwe kwi-vacuum epheleleyo (uxinzelelo olungenanto).

Uxinzelelo lwegeyiji (P_G): Uxinzelelo lulinganiswa ngokusekelwe kuxinzelelo lokwenyani lomoya.

Uxinzelelo olutywiniweyo (P_S): Uxinzelelo olulinganiswe ngokusekelwe kuxinzelelo oluqhelekileyo lwe-atmosphere (101,325Pa).

Uxinzelelo olubi: Xa ixabiso loxinzelelo lwe-gauge < real pressure absolute. Ikwabizwa ngokuba yi-vacuum degree.

Uxinzelelo olwahlukileyo (P_D): Umahluko woxinzelelo phakathi kwawo nawaphi na amanqaku amabini.

Isivamvo soxinzelelo: Isixhobo siyava uxinzelelo kwaye siguqule isignali yoxinzelelo ibe ngumqondiso wokuphuma kombane ngokwepateni ethile. Akukho sekethe yeamplifier ngaphakathi kwinzwa. Imveliso yesikali esipheleleyo ngokuqhelekileyo yiyunithi ye-milivolt. Inzwa inomthamo ophantsi wokuthwala kwaye ayikwazi ukujongana nekhompyuter ngokuthe ngqo.

Umshicileli woxinzelelo: Isidluliseli sinokuguqula umqondiso woxinzelelo ube ngumqondiso oqhelekileyo wokuphuma kombane kunye nobudlelwane obusebenzayo bomgca. Iimpawu ezidityanisiweyo zemveliso zidla ngokuthe ngqo ngoku: ① 4~20mA okanye 1~5V; ② 0 ~ 10mA okanye 0 ~ 10V. Ezinye iintlobo zinokujongana nekhompyuter ngokuthe ngqo.

 

Umthumeli woxinzelelo = Isenzi soxinzelelo + Isekethe ye-amplifier ezinikeleyo

 

Enyanisweni, abantu bahlala bengenzi mahluko angqongqo phakathi kwamagama ezi zixhobo zimbini. Omnye umntu angathetha ngenzwa leyo, nangona kunjalo, ibhekisa kwi-transmitter ene-4 ~ 20mA imveliso.