Isebenza kwi-Cat 330D / 336D inzwa yoxinzelelo lweoli EX2CP54-12

Inzwa yoxinzelelo ineempazamo eziphezulu kunye nephutha elifanelekileyo, kwaye imbuyekezo yephutha yenzwa yoxinzelelo yinto ephambili kwisicelo sayo. Inzwa yoxinzelelo ikakhulu ibandakanya impazamo ye-offset, impazamo yokuziva, impazamo yomgca kunye nempazamo ye-hysteresis. Eli phepha liza kwazisa indlela yezi mpazamo ezine kunye nempembelelo yazo kwiziphumo zovavanyo, kwaye ngexesha elifanayo lizise indlela yokulinganisa uxinzelelo kunye nemizekelo yesicelo ukuphucula ukuchaneka komlinganiselo.

Okwangoku, kukho iintlobo ezininzi zezivamvo kwimarike, eyenza ukuba iinjineli zoyilo zikhethe iinzwa zoxinzelelo ezifunwa yinkqubo. Ezi zinzwa azibandakanyi kuphela ezona ziguquli zisisiseko, kodwa kunye nezinzwa eziyinkimbinkimbi ezidityanisiweyo ezinezijikelezo ze-chip. Ngenxa yale mahluko, injineli yoyilo kufuneka ihlawule impazamo yokulinganisa inzwa yoxinzelelo kangangoko kunokwenzeka, okuyinyathelo elibalulekileyo lokuqinisekisa ukuba inzwa ihlangabezana neemfuno zokuyila kunye nesicelo. Kwezinye iimeko, imbuyekezo inokuphucula ukusebenza ngokubanzi kwenzwa kwisicelo.

I-Offset, uluhlu lokulinganisa kunye nembuyekezo yeqondo lokushisa zonke zinokuqondwa ngenethiwekhi ye-resistor yefilimu encinci, elungiswa nge-laser kwinkqubo yokupakisha.

I-sensor idla ngokusetyenziswa ngokudibeneyo kunye ne-microcontroller, kwaye isofthiwe edibeneyo ye-microcontroller ngokwayo ibeka imodeli yemathematika yenzwa. Emva kokuba i-microcontroller ifunde i-voltage ephumayo, imodeli inokuguqula i-voltage kwixabiso lokulinganisa uxinzelelo ngokuguqulwa kwe-analog-to-digital converter.

Eyona modeli ilula yezibalo yenzwa ngumsebenzi wodluliselo. Imodeli inokulungiswa kuyo yonke inkqubo yokulinganisa, kwaye ukuvuthwa kwemodeli kuya kwanda ngokunyuka kwamanqaku okulinganisa.

Ngokombono we-metrology, impazamo yokulinganisa inenkcazo engqongqo kakhulu: imele umahluko phakathi koxinzelelo olulinganisiweyo kunye noxinzelelo lwangempela. Nangona kunjalo, uxinzelelo lwangempela alunakufunyanwa ngokuthe ngqo, kodwa lunokuqikelelwa ngokuthatha imigangatho yoxinzelelo efanelekileyo. IiMetrologists zihlala zisebenzisa izixhobo ezichaneka ubuncinci amaxesha angama-10 aphezulu kuneso sixhobo esilinganisiweyo njengemigangatho yokulinganisa.

Ngenxa yokuba inkqubo engenakulinganiswa inokusebenzisa kuphela ubuntununtunu obuqhelekileyo kunye namaxabiso okulinganisa ukuguqula i-voltage ephumayo ibe yimpazamo yoxinzelelo.