Ubudlelwane phakathi kwenzwa yoxinzelelo lwe-piezoresistive kunye neziphumo

I-piezoresistive pressure sensors luhlobo lwenzwa yoxinzelelo olusebenzisa umphumo we-piezoresistive ukulinganisa uxinzelelo. Umphumo we-piezoresistive ubhekisela kutshintsho lokumelana nombane wento xa iphantsi koxinzelelo lomatshini okanye ukuguqulwa. Kwiinzwa zoxinzelelo lwe-piezoresistive, i-diaphragm okanye i-membrane isetyenziselwa ukuguqula uxinzelelo olusetyenzisiweyo kwi-deformation yomatshini, nto leyo eyenza utshintsho ekuchaseni izinto ze-piezoresistive.

Ubudlelwane phakathi koxinzelelo kunye nesiphumo senzwa yoxinzelelo lwe-piezoresistive luphenjelelwa kuyilo kunye nezinto eziphathekayo zenzwa. Nantsi isishwankathelo sobudlelwane ngokubanzi:

1.UBudlelwane obuLungelelwano ngokuthe ngqo:

Kwiinzwa ezininzi ze-piezoresistive zoxinzelelo, kukho ubudlelwane obuthe ngqo kunye nomgca phakathi koxinzelelo olusetyenzisiweyo kunye nokutshintsha kokumelana nombane. Njengoko uxinzelelo lukhula, i-diaphragm okanye i-membrane ye-sensor idlula i-deformation, ibangela ukuba izinto ze-piezoresistive zifumana ubunzima. Olu xinzelelo lukhokelela ekutshintsheni ukuchasana, kwaye olu tshintsho lulingana noxinzelelo olusetyenzisiweyo. Utshintsho ekuchaseni lunokulinganiswa usebenzisa i-Wheatstone bridge circuit okanye ezinye iindlela zokulungisa iimpawu.

2.Ubumbeko lweBhulorho yeWheatstone:

Izinzwa zoxinzelelo lwe-piezoresistive zihlala zisebenzisa i-Wheatstone bridge circuit ukulinganisa utshintsho ekuchaseni ngokuchanekileyo. Umjikelezo webhulorho uqukethe izinto ezininzi ze-piezoresistive, ezinye zazo ziphantsi koxinzelelo olubangelwa uxinzelelo, ngelixa ezinye zingekho. Utshintsho oluhlukileyo ekuchaseni phakathi kwezinto ezixinzelelekileyo kunye nezingathinteliyo zisetyenziselwa ukuvelisa i-voltage ephumayo ehambelana noxinzelelo olusetyenzisiweyo.

3.Isiphumo solungiselelo loMqondiso:

Isiphumo senzwa yoxinzelelo lwe-piezoresistive luphawu lombane we-analog. Imveliso yombane ihambelana nokutshintsha kokuchasana kwaye, ngenxa yoko, uxinzelelo olusetyenzisiweyo. Umjikelo wokulungisa umqondiso unokusetyenziselwa ukukhulisa, ukuhluza, kunye nokulinganisa umqondiso wemveliso ukufumana ufundo oluchanekileyo loxinzelelo.

4.Ulungelelwaniso:

Ngenxa yokunyamezela ukuveliswa kunye nokuhluka kweempawu zenzwa, i-piezoresistive pressure sensors ihlala ifuna ukulinganisa ukuqinisekisa imilinganiselo yoxinzelelo oluchanekileyo. Ukulinganisa kubandakanya ukumisela ubudlelwane obuchanekileyo phakathi kombane wokuphuma kwenzwa kunye noxinzelelo lwangempela olusetyenziswayo. Olu lungelelwaniso lunokufezekiswa ngovavanyo kunye nokuthelekisa ngokuchasene nomgangatho wereferensi.

Isishwankathelo, ubudlelwane phakathi koxinzelelo kunye nesiphumo senzwa yoxinzelelo lwe-piezoresistive luqhelekile kwaye luyalingana. Njengoko uxinzelelo lukhula, ukuchasana kwenzwa kuyatshintsha, okukhokelela kutshintsho oluhambelanayo kwi-voltage ephumayo. Ukucwangciswa kwebhulorho ye-Wheatstone kunye nomgangatho wesignali udlala indima ebalulekileyo ekuguquleni utshintsho oluchasayo lube lusetyenziso kunye nomlinganiselo ochanekileyo woxinzelelo.