I-Pressure Sensor/Transmitter/Transducer

Abaninzi banokubhideka malunga nomahluko phakathi, i-pressure sensor, i-pressure transducer kunye ne-pressure transmitter ngokwamanqanaba ahlukeneyo. La magama mathathu anokutshintshwa phantsi komxholo othile. I-pressure sensors kunye ne-transducers zinokwahlulwa ngesignali yokuphuma. Eyokuqala inokuchazwa ngesignali yokuphuma ye-4-20mA ngelixa eyesibini inesignali ye-millivolt. Ngamanye amazwi, igama elifanelekileyo linokuchazwa ngokwesignali yokuphuma kunye nokusetyenziswa.

Inzwa yoxinzelelo

I-sensor yoxinzelelo ligama eliqhelekileyo lazo zonke iintlobo zoxinzelelo, isixhobo esisetyenziselwa ukulinganisa uxinzelelo. Ngokwesiqhelo, isignali yokukhupha i-millivolt igcina isignali enamandla ngaphandle kokulahleka xa isixhobo esinjalo sifakwe kwiimitha ezili-10-20 ukusuka kwi-elektroniki. Umbane we-5VDC onesignali yokukhupha ye-10mV/V uvelisa isignali yokukhupha ye-0-50mV. Itekhnoloji endala ivelisa kuphela i-2-3mV/V (ii-millivolts nge-volt nganye) ngelixa ubuchwepheshe obuphezulu bukwazi ukuvelisa i-20mV/V ngokuthembekileyo. Imiqondiso yokukhupha i-Millivolt ishiya izithuba zeenjineli zokulawula isignali yokukhupha ngokweemfuno ezithile zenkqubo kunye nokunciphisa ubungakanani bephakheji kunye neendleko.

I-Transducer yoXinzelelo

Isiphumo se-Pressure transducer sisantya esiphezulu se-voltage okanye i-frequency signal equka i-0.5 4.5 V ratiometric, 1 - 5 V kunye ne-1 - 6 kHz. Isiphumo se-singal silingana nombane ngokubanzi. Izibonakaliso zesiphumo se-voltage ziyakwazi ukubonelela ngokusetyenziswa okuphantsi kwamandla kwizixhobo ezisebenza nge-batter ekude. Ii-voltage zesibonelelo eziqala kwi-8-28 VDC zifuna umbane olawulwa yi-5VDC, ngaphandle kwesiphumo se-0.5 - 4.5V. Ingxaki enzima yezibonakaliso zesiphumo se-voltage endala ayikho "kwi-zero ephilayo", kukho uphawu xa i-sensor ikwi-zero uxinzelelo. Inkqubo endala idla ngokusilela ukuqonda umahluko phakathi kwe-sensor engasebenziyo engenamveliso kunye noxinzelelo lwe-zero.

Umthumeli woxinzelelo

Isixhobo sokudlulisa uxinzelelo sisebenza ngokulinganisa umbane wesixhobo endaweni ye-voltage. Olona phawu lucacileyo sisignali yokukhupha umbane eyi-4-20mA.abathumeli boxinzeleloZenzelwe ukujonga uxinzelelo lweenqanawa, imibhobho okanye iitanki ngexesha langempela. Iitransmitter zoxinzelelo ze-4-20mA zibonelela ngokhuseleko olufanelekileyo lwengxolo yombane (EMI/RFI), kwaye ziya kufuna umbane we-8-28VDC. Ngenxa yokuba isignali ivelisa umbane, ingadla ubomi bebhetri obungaphezulu ukuba isebenza ngoxinzelelo olupheleleyo.

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