Intshayelelo:

Kwiinkqubo zemveliso yoshishino, ubushushu bungenye yeeparamitha ezibalulekileyo ezifuna ukulinganiswa nokulawulwa. Kwimilinganiselo yokushisa, i-thermocouples isetyenziswa ngokubanzi. Baneenzuzo ezininzi, ezifana nesakhiwo esilula, ukuveliswa okufanelekileyo, uluhlu olubanzi lokulinganisa, ukuchaneka okuphezulu, inertia encinci, kunye nokuhanjiswa okulula okude kweempawu zemveliso. Ukongeza, ngenxa yokuba i-thermocouple iyinzwa yokwenziwa, ayifuni umbane wangaphandle ngexesha lokulinganisa, kwaye ilula kakhulu ukuyisebenzisa, ngoko isoloko isetyenziselwa ukulinganisa ubushushu begesi okanye ulwelo kwiziko kunye nemibhobho kunye nomphezulu. ubushushu bezinto eziqinileyo.

Umgaqo wokuSebenza:

Xa kukho ii-conductor ezimbini ezahlukeneyo okanye i-semiconductors A kunye no-B ukwenza i-loop, kwaye iziphelo zombini zixhunyiwe omnye komnye, okoko nje amaqondo okushisa kwiidibaniso ezimbini ahlukeneyo, ubushushu becala elinye ngu-T, elibizwa ngokuba yi-T. isiphelo esisebenzayo okanye isiphelo esishushu, kunye nobushushu besinye isiphelo T0, ebizwa ngokuba yisiphelo sasimahla (esikwabizwa ngokuba sisiphelo sesalathiso) okanye isiphelo esibandayo, amandla e-electromotive aya kuveliswa kwi-loop, kunye nolwalathiso kunye nobukhulu be-loop. amandla e-electromotive anxulumene nezinto zomqhubi kunye nobushushu beendlela ezimbini. Le nto ibizwa ngokuba yi "thermoelectric effect", kwaye i-loop eyenziwe ngabaqhubi ababini ibizwa ngokuba yi "thermocouple".

I-thermoelectromotive force inamacandelo amabini, enye inxalenye yi-contact electromotive force yabaqhubi ababini, kwaye enye inxalenye yi-thermoelectric electromotive force ye-conductor enye.

Ubungakanani begunya le-thermoelectromotive kwi-loop ye-thermocouple ihambelana kuphela nesixhobo somqhubi esihlanganisa i-thermocouple kunye nobushushu beendlela ezimbini zokuhlanganisana, kwaye akunanto yakwenza kunye nokuma kunye nobukhulu be-thermocouple. Xa izinto ezimbini ze-electrode ze-thermocouple zilungisiwe, amandla e-thermoelectromotive ngamaqondo okushisa amabini e-junction t kunye ne-t0. umsebenzi umbi.