Kuyerwa kwetembiricha ndechimwe chezvinhu zvakakosha mukutonga kwemaitiro pakati pemaindasitiri. Resistance Temperature Detector (RTD) uye Thermocouple (TC) maviri eanonyanya kushandiswa tembiricha sensors. Chimwe nechimwe chazvo chine musimboti wayo wekushanda, chiyero chinoshanda chekuyera uye maficha. Kunzwisisa kwakadzama kwehunhu hwavo kunobatsira kubvisa kusahadzika uye kuita sarudzo ine ruzivo pamusoro pekutonga kwemaitiro. Senge mumwe angashamisika kuti angasarudza sei chinotsiva kana yazvino RTD mudziyo ichida kutsiviwa, kumwe kuramba kwemafuta kungave kwakanaka here kana thermocouple ingave nani.
RTD (Resistance Temperature Detector)
RTD inoshanda pamusimboti wekuti kupikisa kwemagetsi kwezvinhu zvesimbi kunoshanduka nekupisa. Inowanzo gadzirwa kubva kuplatinamu, RTD Pt100 inoratidza hukama hunofungidzirwa uye hunenge hwemutsara pakati pekupokana uye tembiricha apo 100Ω inoenderana ne0℃. Inoshanda tembiricha span yeRTD yakatenderedza -200 ℃ ~ 850 ℃. Zvakadaro, kana chiyero chekuyera chikawira mukati me600 ℃ kuita kwayo kunogona kuvandudzwa.
Thermocouple
Thermocouple chishandiso chinoshandiswa kuyera tembiricha kuburikidza neseebeck athari. Inoumbwa nesimbi mbiri dzakasiyana dzakabatanidzwa kumagumo ega ega. Voltage inogadzirwa inoenderana nemusiyano wetembiricha pakati pejoni rinopisa (kuno kuyerwa kunotorwa) uye jira rinotonhora (rinochengetwa se tembiricha yakaderera). Zvinoenderana nekubatanidzwa kwezvinhu zvinoshandiswa, thermocouple inogona kupatsanurwa muzvikamu zvakawanda zvinokanganisa huwandu hwetembiricha yavo uye kunzwa. Semuyenzaniso, Type K (NiCr-NiSi) inokwana kunyorera kusvika 1200 ℃ ukuwo Type S (Pt10% Rh-Pt) inokwanisa kuyera kusvika 1600 ℃.
Kuenzanisa
Kuyera chiyero:RTD inonyanya kushanda pakati pe -200 ~ 600 ℃. Thermocouple inokodzera tembiricha yepamusoro kubva pa800 ~ 1800 ℃ zvichienderana nekupedza kudzidza, asi haiwanzo kurudzirwa kuyerwa pazasi 0 ℃.
Mutengo:Mhando dzakajairika dze thermocouple dzinowanzo kudhura pane RTD. Nekudaro, kupasa kwepamusoro-kwekupedzisira kweiyo thermocouple yakagadzirwa kubva kune yakakosha zvinhu kunogona kudhura, uye mutengo wayo unogona kuchinjika nemusika wesimbi wakakosha.
Kururama:RTD inozivikanwa kurongeka kwepamusoro uye kudzokororwa, ichipa kuverenga chaiko tembiricha yekudzora tembiricha inoda maapplication. Thermocouple kazhinji haina kunyatsojeka pane RTD uye haina kunyatso hunyanzvi mukudzika-tembiricha span (＜300℃). Kupedza zvidzidzo kwevakuru kungadai kwakavandudza kurongeka.
Nguva Yemhinduro:Thermocouple ine inokurumidza kupindura nguva kana ichienzaniswa neRTD, ichiita kuti iwedzere kusimba mumashandisirwo ekuita uko tembiricha inoshanduka nekukurumidza.
Zvakabuda:Iyo yekupokana inobuda yeRTD inowanzo ratidza kuita kurinani pakugadzikana-refu-refu uye mutsara pane thermocouple's voltage chiratidzo. Mabudiro eese ari maviri tembiricha sensor marudzi anogona kushandurwa kuita 4 ~ 20mA yazvino chiratidzo uye smart kutaurirana.
Kubva pane ruzivo rwuri pamusoro apa tinogona kugumisa kuti chinhu chakakosha chekusarudza pakati peRTD nethermocouple ndiyo tembiricha yekushanda inofanirwa kuyerwa. RTD ndiyo inosarudzika sensor mune yakaderera-yepakati tembiricha renji yekuita kwayo kwepamusoro, nepo thermocouple iriko inokwanisa pasi pepamusoro tembiricha mamiriro pamusoro pe800 ℃. Kudzokera kudingindira, kunze kwekunge paine kugadziridzwa kana kutsauka mukuita tembiricha yekushanda, kutsiva thermocouple hakugone kuunza bhenefiti yakakosha kana kuvandudzwa kubva kune yekutanga RTD application chiitiko. Inzwa wakasununguka kutauraShanghai Wangyuankana paine kumwe kunetseka kana kudiwa maererano neRTD & TR.
Nguva yekutumira: Zvita-30-2024