Thama-ermocouples asetshenziswa kabanzi njengezinzwa zezinzwa zokushisa ezinhlelweni zezimboni nezesayensi ngenxa yokuqina kwawo, izinga lokushisa elibanzi, nesikhathi sokuphendula esisheshayo.Kodwa-ke, inselele evamile ngama-thermocouples yisidingo sesinxephezelo sendawo ebandayo. I-Thermocoupleikhiqiza i-voltage elingana nomehluko wezinga lokushisa phakathi kwesiphetho sayo sokulinganisa (isiphelo esishisayo) nesiphetho sayo sereferensi (isiphetho esibandayo).Ukuhlangana kwereferensi kuvame ukuba kutheminali yokokufaka yensimbi yokulinganisa, futhi izinga lokushisa layo lingashintshashintsha ngenxa yezimo zemvelo.Lokhu kushintsha kwezinga lokushisa lendawo ebandayo kungabangela amaphutha okulinganisa izinga lokushisa.
Isinxephezelo se-cold junction inqubo yokulinganisa ngokunembile izinga lokushisa lendawo ebandayo kanye nokunxephezela umphumela wawo ekuphumeni kwamandla kagesi we-thermocouple.Lokhu kubalulekile ukuze kufinyelelwe izilinganiso zezinga lokushisa ezinembile, ikakhulukazi ezinhlelweni ezidinga ukulawulwa kwezinga lokushisa okunembile.Ukusebenzisa isinxephezelo sendawo ebandayo kubalulekile ekuqinisekiseni ukunemba nokuthembeka kwezilinganiso zokushisa ze-thermocouple.Ngaphandle kwesinxephezelo esifanele, amaphutha abalulekile angenzeka ekufundweni kwezinga lokushisa, ikakhulukazi ezindaweni ezinamazinga okushisa asemaceleni okubanda angazinzile.
Kunezindlela eziningana zokufinyelela isinxephezelo sendawo ebandayo, indlela eyodwa evamile ukusebenzisa isignali ye-thermocouple.Lawa madivayisi aklanyelwe ukukala izinga lokushisa elibandayo le-junction futhi anikeze isinxephezelo esidingekayo sokukhipha amandla kagesi we-thermocouple.Ama-conditioner esignali angasetshenziswa njengamayunithi azimele noma ahlanganiswe kumathuluzi okulinganisa.Isimo samasignali eduze nendawo ebandayo singasetshenziswa ukunciphisa amaphutha ezilinganisweni zokushisa ngaphezu kokusebenzisa isibonisi sesignali esizinikele.Ngokusebenzisa amasu afanele okuhlunga kanye nokukhulisa i-amplification eduze nendawo ebandayo, ukuphuma kwamandla kagesi we-thermocouple kungalungiswa ukuze kuncishiswe imiphumela yokushintsha kwezinga lokushisa kwendawo ebandayo.
I-Shanghai Wangyuan Instruments of Measurement Co., Ltd. yinkampani yaseShayina yobuchwepheshe obusezingeni eliphezulu esebenza ngobuchwepheshe bokulawula inqubo yezimboni kanye nemikhiqizo iminyaka engaphezu kwengu-20.Singakwazi ukunikeza okunembile nokuthembekileadlulisa izinga lokushisangezakhi zokuzwa zokuhlangana okubandayo kunxeshezelwe i-thermocouple kanyeisithiyo sokuphepha esihlakaniphilenge-othomathikhi ebandayo umsebenzi wokunxeshezelwa.Zizwe ukhululekile ukusithinta ukuze uthole ulwazi olwengeziwe.
Isikhathi sokuthumela: Dec-29-2023