Izinzwa zokucindezela kwe-piezoresistive ziwuhlobo lwenzwa yokucindezela esebenzisa umphumela we-piezoresistive ukukala ingcindezi.Umphumela we-piezoresistive ubhekisela ekushintsheni kokumelana kukagesi kwento ethile lapho ingaphansi kokucindezeleka komshini noma ukuguqulwa.Kuzinzwa zokucindezela kwe-piezoresistive, i-diaphragm noma ulwelwesi ngokuvamile lusetshenziselwa ukuguqula ingcindezi esetshenzisiwe ibe yi-mechanical deformation, okubangela izinguquko ekuphikisweni kwezakhi ze-piezoresistive.
Ubudlelwano phakathi kwengcindezi nokuphumayo kwenzwa yokucindezela kwe-piezoresistive kuthonywa ukuklanywa kanye nezakhiwo ezibonakalayo zenzwa.Nakhu okufingqiwe kobudlelwano obujwayelekile:
1.Ubudlelwano obuqondile obuqondile:
Ezinzwa eziningi zokucindezela kwe-piezoresistive, kukhona ubuhlobo obuqondile nomugqa phakathi kwengcindezi esetshenzisiwe kanye noshintsho lokumelana nogesi.Njengoba ingcindezi ikhula, i-diaphragm noma i-membrane yenzwa ishintsha, okubangela ukuthi izakhi ze-piezoresistive zithole ubunzima.Lolu hlobo luholela ekushintsheni kokumelana, futhi lolu shintsho lulingana nokucindezela okusetshenzisiwe.Ushintsho lokumelana lungalinganiswa kusetshenziswa isekethe yebhuloho le-Wheatstone noma ezinye izindlela zokumisa isignali.
2.Ukucushwa kweWheatstone Bridge:
Izinzwa zokucindezela kwe-piezoresistive ngokuvamile zisebenzisa isekethe yebhuloho le-Wheatstone ukukala ukuguqulwa kokumelana ngokunembile.Isifunda sebhuloho siqukethe izakhi eziningi ze-piezoresistive, ezinye zazo ezingaphansi kwengcindezi ebangelwa ukucindezela, kanti ezinye azikho.Ukushintsha okuhlukile kokumelana phakathi kwezinto ezicindezelwe nezingagxiliwe kusetshenziselwa ukukhiqiza i-voltage ephumayo elingana nengcindezi esetshenzisiwe.
3.Isimo Sesiginali Sokukhiphayo:
Okukhishwayo kwenzwa yokucindezela kwe-piezoresistive ngokuvamile kuyisignali ye-analog voltage.Ukukhishwa kwe-voltage kuhambisana nokushintsha kokumelana futhi, ngenxa yalokho, ingcindezi esetshenzisiwe.Isekhethi yesimo samasignali ingase isetshenziselwe ukukhulisa, ukuhlunga, nokulinganisa isignali yokuphumayo ukuze kutholwe ukufundwa kwengcindezi okunembile.
4.Ukulinganisa:
Ngenxa yokubekezelelana kokukhiqiza nokuhluka kwezakhiwo zezinzwa, izinzwa zengcindezi ye-piezoresistive zivame ukudinga ukulinganisa ukuze kuqinisekiswe izilinganiso zokucindezela okunembile.Ukulinganisa kuhilela ukunquma ubudlelwano obuqondile phakathi kwe-voltage ephumayo yenzwa kanye nengcindezi yangempela esetshenziswayo.Lokhu kulinganisa kungafinyelelwa ngokuhlolwa nokuqhathanisa nezinga lereferensi.
Kafushane, ubudlelwano phakathi kwengcindezi nokuphumayo kwenzwa yokucindezela kwe-piezoresistive ngokuvamile buqondile futhi bulingana.Njengoba ingcindezi ikhula, ukumelana kwenzwa kuyashintsha, okuholela ekushintsheni okuhambisanayo ku-voltage yokuphumayo.Ukumiswa kwebhuloho le-Wheatstone nesimo sesignali kudlala indima ebalulekile ekuguquleni izinguquko zokumelana zibe isilinganiso esisebenzisekayo nesinembile sokucindezela.
Isikhathi sokuthumela: Sep-06-2023