Siab Sensor / Transmitter / Transducer

Ntau tus yuav tsis meej pem txog qhov sib txawv ntawm, lub siab sensor, pressurer transducer thiab siab transmitter nyob rau hauv txawv degree. Peb nqe lus no yog sib pauv tau raws li qee qhov ntsiab lus. Lub siab sensors thiab transducers yuav txawv ntawm qhov tso zis teeb liab. Tus qub tuaj yeem piav qhia nrog 4-20mA tso zis teeb liab thaum lub sijhawm tom qab nrog lub teeb liab millivolt. Hauv lwm lo lus, lub sij hawm tsim nyog tuaj yeem txiav txim siab raws li cov teeb liab tso tawm thiab daim ntawv thov.

Siab Sensor

Siab sensor yog ib lo lus dav dav rau txhua hom kev siab, ib qho cuab yeej siv los ntsuas qhov siab. Nyob rau hauv ib txwm, lub millivolt tso zis teeb liab ua rau muaj zog teeb liab tsis poob thaum xws li ib tug ntaus ntawv yog ntsia 10-20 ko taw deb ntawm lub electronics. A 5VDC muab nrog 10mV / V tso zis teeb liab ua rau 0-50mV tso zis teeb liab. Cov thev naus laus zis qub tsuas yog tsim 2-3mV / V (millivolts ib volt) thaum lub xeev-of-the-art muaj peev xwm tsim tau 20mV / V ntseeg tau. Millivolt tso zis teeb liab qhov chaw seem rau cov engineers tswj cov teeb liab tso zis raws li cov kev xav tau tshwj xeeb thiab txo cov pob loj thiab cov nqi.

Siab Transducer

Siab transducer tso zis yog siab voltage lossis zaus teeb liab nrog rau 0.5 4.5 V ratiometric, 1 - 5 V thiab 1 - 6 kHz. Output singal yog proportional rau cov khoom siv dav dav. Voltage output signals muaj peev xwm muab cov khoom siv tam sim no qis rau cov khoom siv hluav taws xob ua haujlwm. Cov khoom siv hluav taws xob xws li 8-28 VDC yuav tsum muaj 5VDC tswj cov khoom siv, tshwj tsis yog rau cov zis 0.5 - 4.5V. Ib qho teeb meem tsis yooj yim ntawm cov hluav taws xob hluav taws xob qub tso tawm cov cim tsis muaj "nyob xoom", muaj cov teeb liab thaum lub sensor nyob ntawm xoom siab. Cov txheej txheem qub feem ntau tsis pom qhov txawv ntawm qhov ua tsis tau zoo sensor uas tsis muaj cov zis thiab xoom siab.

Siab Transmitter

Siab transmitter ua haujlwm los ntawm kev ntsuas tam sim no ntawm lub cuab yeej theej qhov voltage. Cov cim pom tseeb tshaj plaws yog tam sim no tso zis teeb liab 4-20mA. Lonnmetersiab transmittersyog tsim los saib xyuas cov hlab ntsha, cov kav dej lossis cov tso tsheb hlau luam hauv lub sijhawm. 4-20mA siab transmitters muaj kev tiv thaiv hluav taws xob zoo (EMI / RFI), thiab yuav xav tau lub zog ntawm 8-28VDC. Vim tias lub teeb liab tsim tam sim no, nws tuaj yeem haus roj teeb ntau dua yog tias ua haujlwm ntawm qhov siab.

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