Izinga lokushisa le-Cummins nengcindezi sensor yokucindezela Alarm Shintsha 4921479

Ngenasici

Izinto zayo ezibucayi azixhumani nento elinganisiwe, ebizwa nangokuthi ithuluzi lokulinganisa lokungathintwa lokungalandelwa. Leli thuluzi lingasetshenziswa ukukala izinga lokushisa elingaphezulu lezinto ezishukumisayo, okuhlosiwe kanye nezinto ezinamandla amancane okushisa noma ushintsho lokushisa olusheshayo (isikhashana), futhi lungasetshenziswa ukukala ukusatshalaliswa kwezinga lokushisa kwenkambu yokushisa.

I-thermometer esetshenziswa kakhulu engasebenzi kahle isuselwa emthethweni oyisisekelo weBlackbody Radiation futhi ibizwa ngokuthi i-radiation thermometer. I-radiation thermometry ifaka indlela yokukhanya (bheka i-pyrometer ye-optical), indlela yemisebe (bheka indlela yemisebe) kanye nendlela yokwenza i-coloints (bheka i-Colorimetric thermometer). Zonke izinhlobo zezindlela zokubeka imisebe zingalinganisa kuphela izinga lokushisa elihambisanayo le-photometric, lokushisa lemisebe noma lokushisa le-colorimetric. Ukushisa kuphela okulinganiselwe kumnyama (into edonsa yonke imisebe kodwa ayikhombisi ukukhanya) izinga lokushisa langempela. Uma ufuna ukukala lokushisa kwangempela kwento, kufanele ulungise ukuvumelanisa komhlaba. Kodwa-ke, ukufukuza okungaphezulu kwezinto zokwakha kuncike emazingeni okushisa kuphela kanye ne-wavelength, kepha futhi nasesimweni sendawo, ukunamathela kanye ne-microskruction, ngakho-ke kunzima ukukala ngokunembile. Ekukhiqizeni okuzenzakalelayo, kuvame ukudingekile ukusebenzisa i-radiation thermometry ukukala noma ukulawula izinga lokushisa kwezinto ezithile, njengokushisa kwensimbi ye-strip, izinga lokushisa, ukukhombisa izinga lokushisa kanye nokushisa kwezinsimbi ezibunjiwe noma ezibucayi. Kulezi zimo ezithile, kunzima impela ukukala ukufikelwa yinto yento. Ngokukalwa okuzenzakalelayo nokulawulwa kokushisa okuqinile okungaphezulu, kusetshenziswe enye inkomba ukwakha umgodi omnyama ngendawo elinganisiwe. Ithonya lemisebe eyengeziwe lingathuthukisa imisebe ephumelelayo kanye nokusebenza okusebenzayo kokukhishwa kwendawo ephakeme. Kusetshenziswa i-coefficial esebenza kahle yokuphuma, izinga lokushisa elilinganisiwe lilungisiwe yithuluzi, bese ekugcineni izinga lokushisa langempela lingatholakala. Isibuko esijwayelekile kakhulu esingeziwe yisibuko se-hemispherical. Imisebe ye-diffease yendawo ephakeme eduzane nendawo ephakathi kwebhola ingabonakala ibuyele emuva ebusweni yisibuko se-hemispherical ukwakha eminye imisebe, lapho kungukukhulisa amandla ezinto ezibonakalayo futhi ρ ukukhiqizwa kwesibuko. Ngokuqondene nokukalwa kwemisebe yokushisa kwangempela kwegesi kanye nemidiya ewuketshezi, indlela yokufaka ishubhu elivimbela ukushisa elivimbela ukushisa ekujuleni okuthile ukuze kwakhiwe i-cavity emnyama. Ukukhishwa okusebenzayo okusebenzayo kwe-cylindrical cavity ngemuva kokulingana kwe-thermal nge-medium kutholakala ngokubalwa. Ngokukalwa okuzenzakalelayo nokulawula, leli nani lingasetshenziswa ukulungisa izinga lokushisa elilinganiselwe eliphansi (okungukuthi, izinga lokushisa eliphakathi) futhi uthole izinga lokushisa langempela le-medium.

Izinzuzo zokulinganisa lokushisa okungalandelwanga:

Umkhawulo ophezulu wokulinganisa awunqunyelwe ukubekezelela izinga lokushisa kwezinto zokuzwakala zokushisa, ngakho-ke akukho mkhawulo wokushisa okulinganiswa kakhulu. Ukushisa okuphezulu ngenhla kwe-1800 ℃, indlela yokulinganisa yokungatholwa ngokuxhumana isetshenziswa ikakhulukazi. Ngokuthuthukiswa kobuchwepheshe obungezinhlabelelo, isilinganiso sokushisa kwemisebe sinwebe kancane kancane kusuka ekukhanyeni okubonakalayo kokukhanya okubonakalayo ku-infrared ukukhanya, futhi kusetshenziswe ngaphansi kwamazinga okushisa aphezulu.