ThMa ermocouple anoshandiswa zvakanyanya sezvinhu zvinoongorora tembiricha mumaindasitiri nesainzi nekuda kwekusagadzikana kwawo, tembiricha yakakura, uye nguva yekupindura nekukurumidza. Zvisinei, dambudziko rinowanzoitika nema thermocouple kudiwa kwekugadzirisa cold junction.. Thermocoupleinogadzira voltage inoenderana nemusiyano wetembiricha pakati pemugumo wayo wekuyera (mugumo unopisa) nemugumo wayo wekuyera (mugumo unotonhora). Nzvimbo yekuyera inowanzo kuwanikwa panzvimbo yekupinda yemudziyo wekuyera, uye tembiricha yayo inogona kuchinja nekuda kwemamiriro ekunze. Kuchinja uku kwetembiricha yekuyera tembiricha yekuyera tembiricha kunogona kukonzera zvikanganiso pakuyera tembiricha.
Kubhadharisa tambo dzechando (cold junction compensation) inzira yekuyera tembiricha yechando (cold junction) nemazvo uye kuripa simba rayo pamagetsi anobuda mu thermocouple voltage. Izvi zvakakosha kuti pave nekuyera tembiricha nemazvo, kunyanya mukushandiswa kunoda kudzora tembiricha nemazvo. Kushandisa cold junction compensation kwakakosha kuti pave nechokwadi chekuti kuyerwa kwetembiricha ye thermocouple kwakarurama uye kwakavimbika. Pasina muripo wakakodzera, zvikanganiso zvakakura zvinogona kuitika mukuverenga tembiricha, kunyanya munzvimbo dzine tembiricha dzisingagadzike.
Kune nzira dzakawanda dzekuwana muripo we cold junction, imwe nzira yakajairika ndeyekushandisa thermocouple signal conditioner. Midziyo iyi yakagadzirirwa kuyera tembiricha ye cold junction uye kupa muripo unodiwa wekubuda kwe thermocouple voltage. Ma signal conditioners anogona kushandiswa semayuniti akazvimirira kana kubatanidzwa muzvishandiso zvekuyera. Signal conditioner iri pedyo ne cold junction inogona kushandiswa kuderedza zvikanganiso mukuyera tembiricha pamwe nekushandisa signal conditioner yakatsaurirwa. Nekushandisa matekiniki akakodzera ekusefa nekuwedzera simba pedyo ne cold junction, thermocouple voltage output inogona kugadziriswa kuderedza mhedzisiro yekuchinja kwe cold junction tembiricha.
Shanghai Wangyuan Instruments of Measurement Co., Ltd. ikambani yeChinese yepamusoro-soro ine hunyanzvi muhunyanzvi hwekugadzira tekinoroji nezvigadzirwa zveindasitiri kwemakore anopfuura makumi maviri. Tinogona kupa zvinhu zvakarurama uye zvakavimbika.zvinotumira tembirichanezvinhu zvinonzwa zvemusanganiswa wechando zvakagadzirisa thermocouple pamwe cheteakangwara kuchengetedzwa chipingamupinyiine automatic cold junction compensation function. Sunungukai kutibata kuti muwane rumwe ruzivo.
Nguva yekutumira: Zvita-29-2023