Ithemometha sisixhobo esivumela ukuba silinganise ubushushu bento, umntu, isilwanyana, izinto, ukutya, okusingqongileyo ... Ngalo naluphi na uhlobo lwemilinganiselo ekufuneka siyenzile, sineentlobo ezahlukeneyo zethemometha. Ngaphakathi kweethemometha, sinokufumana iifomathi ezahlukeneyo: ikakhulu i-analog kunye nedijithali.
Xa kuziwa ekulinganiseni iqondo lobushushu lokutya xa sikupheka, uvavanyo kwilabhoratri okanye nakweyiphi na enye imeko apho kufanelekileyo ukubazi ubushushu ngokuchanekileyo, asinakho ukusebenzisa iithemometha zesiko, kodwa siyanyanzelwa sebenzisa ithemometha zelebhu.
Yintoni ithemometha yaselebhu
Njengoko benditshilo kumhlathi odlulileyo, iithemomitha zelebhu, zona ikakhulu zidijithali iyasivumela ukuba silinganise ubushushu ngokuchanekileyo, kuba le yinxalenye efanelekileyo kakhulu, ngakumbi xa kufuneka siyigcine ukuze sikwazi ukwenza iprojekthi esiyenzayo.
Olu hlobo lwethemometha lusinika umlinganiselo wokulinganisa ukuba zingahluka ngokwenziwa yimodeli, ke kufuneka siyithathele ingqalelo xa sikhangela ithemometha yaselebhu ehlangabezana neemfuno zethu, ezikhoyo nezizayo ukuba sifuna ukwandisa ukusetyenziswa kwazo kwiiprojekthi ezizayo.
Injani ithemometha zelebhu
Ithemometha zelabhoratri, nangona igama labo linokubonisa ukuba zizinto ezizodwa, Akukho nto iqhubekayo kwinyani. Ezi ntlobo zeethemometha zisinika uyilo olufanayo esinokuthi silufumane kwimhemomthri yemveli / i-gallium thermometers ukuba sithetha nge-thermometer ye-analog.
Iithemometha ze-Analog zimile ngokufana ityhubhu yeglasi ende enebhalbhu kwelinye icala iphi into eza kusivumela ukuba silinganise ubushushu kwaye siyakutshintsha imilo ngokuxhomekeke kubushushu bento leyo siyilinganisayo.
Nangona uninzi lweethemomitha zelebhu esinokuzifumana eYurophu usinika umlinganiso ngeeCelsiusEzinye zikwabandakanya isikali seFahrenheit kunye neKelvin.
Iithemomitha zedijithali, ngokungafaniyo nezo zisetyenziselwa ukulinganisa ubushushu bomzimba, zinobungakanani becompact, ngobume besikwere nalapho kufuneka qhagamshela isivamvo somlinganiselo. Ezi thermometers zibandakanya iscreen apho ubushushu buboniswa kwisikali esele simile ngaphambili: Celsius, Fahrenheit okanye Kelvin.
Iinxalenye zethemometha yaselebhu
Iithemometha zelebhu ye-Analog zenziwe ngombhobho weglasi apho kuboniswa khona imilinganiselo. Ngaphakathi sifumana i-capillary apho ulwelo olusetyenziselwa ukwenza umlinganiso lujikeleza khona (gallium / galinstan okanye utywala obunemibala). Okokugqibela, sifumana ibhalbhu, elisezantsi ithemometha apho ulwelo olusetyenziselwa ukulinganisa lubekwe khona.
Ithemometha zedijithali, njengoko igama labo libonisa, zizixhobo zombane ezithi ibandakanya iprosesa enokuhluka kubude apho sifumana khona inzwa yokwenza imilinganiselo. Le nzwa ithumela isiginali yombane kwiyunithi esembindini, eya kuthi ibe nakho ukujongana nokutolika ukuze inike idatha esiyifunayo.
Ngokungafaniyo neethemometha zeanalog, iithemomitha zedijithali zixhotyiswe ngebhetri, Ibhetri ekufuneka ihlale ikwimeko entle ukuba asifuni ukwenza imilinganiselo ephosakeleyo enokonakalisa ilabhoratri yethu esele ikhona, iprojekthi yezolimo ...
Ukuchaneka kweethemometha zelebhu
Ukuba ujonge iithermometers zaselabhoratri ezichaneke kakhulu, ezona zininzi kuyacetyiswa ukuba ukhethe ithemometha yedijithali, nangona ngenxa yeendleko zayo eziphezulu, kunokwenzeka ukuba iphume ezipokothweni zethu, okoko siqwalasele imodeli esemgangathweni eneziqinisekiso eziqinisekisa ukusebenza ngokukuko kunye nemilinganiselo echanekileyo.
Olu hlobo lweethemometha zisoloko zikhawuleza kakhuluNangona kunjalo, abacetyiswa xa kufuneka senze umlinganiso kwinto eshushu kakhulu okanye ebanda kakhulu, ngakumbi ukuba intambo yokulinganisa imfutshane kakhulu.
Kule meko, olona khetho lufanelekileyo kukukhetha ithemometha yeglasi yelebhu, iithemometha kwiimeko ezininzi, idlula kwi-30 cm ubude ke siwuphepha umngcipheko wokusondeza isandla kufutshane kakhulu nento esifuna ukuyilinganisa.
Linganisa ithemometha yelebhu
Njengoko benditshilo kwicandelo elidlulileyo, iithemomitha zelebhu, zombini ezidijithali kunye neanalog, zichanekile kakhulu, okoko zenziwe ziinkampani eziye iqinisekisiwe ngaphambili liZiko lokuNgqinisisa likaZwelonke (ENAC).
Ayinto efanayo ukufumana umlinganiso wobushushu ongalunganga kuvavanyo lwasekhaya kunemilinganiselo engalunganga kuvavanyo, kuba ukuba ayilunganga, iprojekthi iyonke inokudlula kwaye kufuneka uqale kwasekuqaleni.
Xa uthenga ithemometha yaselebhu, kufuneka sithathele ingqalelo izatifikethi zomenzi, ukuba sifuna ukuba imilinganiselo inyaniseke kwinyani kunye nomda ophantsi wempazamo, umda wempazamo kunakwilabhoratri yokulinga, kufuneka ingxelo ngeziphumo.
Ithemometha nganye yaselebhu kufuneka zibandakanya imida evumelekileyo yempazamoImida yempazamo ukusuka ku-0,5º C, ukuya kuthi ga ku-2º C ukongeza ku-1º C. Le mida yempazamo kufuneka ibandakanywe kwiziphumo zovavanyo.
Ukuba ithemometha ihlala isetyenziselwa ukwenza imilinganiselo phantsi kweemeko eziqhelekileyo, akukho mfuneko yokulinganisa rhoqo. Ukuba ngokuchaseneyo, iphantsi kobushushu obungalunganga kangangexesha elide, kuya kufuneka siqwalasele umlinganiso wesixhobo sokulinganisa ubushushu kube kanye ngonyaka.
Ulinganisa njani ithemometha
Zimbini iindlela zokulinganisa iithemometha: ngokuthelekisa nangamanqaku amiselweyo.
Ulungelelwaniso ngokuthelekisa iquka ukuthelekisa ukufundwa kwethemometha ukuze kulinganiswe kunye nokufundwa kwethemometha ezinempawu eziyaziwayo. Le ndlela yokulinganisa isekwe kuMthetho kaZeroth. Umthetho kaZeroth uthi ukuba iinkqubo ezimbini zikwi-equilibrium yekota, nganye inobushushu obufanayo nenkqubo yesithathu, ezi nkqubo zinobushushu obufanayo nobunye.
Ukulinganiswa kwamanqaku okulungisiweyo. Ukulinganiswa kwamanqaku okulungisiweyo kwenziwa kusetyenziswa ubushushu obungagungqiyo, njengamanzi e-ice, kuba umkhenkce uyanyibilika ku-0ºC kwaye ubanda kubushushu obufanayo.