Chii chinonzi load cell?
Iyo Wheatstone bhiriji redunhu (ikozvino rinoshandiswa kuyera kunetsa pamusoro pechivakwa chinotsigira) yakavandudzwa uye yakafarirwa naSir Charles Wheatstone muna 1843 inozivikanwa, asi matete mafirimu vacuum akaiswa mune ino yekare yakaedzwa uye yakaedzwa dunhu Chikumbiro hachinyatsonzwisiswa. zvakadaro. Mutete firimu sputter deposition maitiro hachisi chinhu chitsva kuindasitiri. Iyi tekinoroji inoshandiswa mumashandisirwo mazhinji, kubva pakugadzira yakaoma microprocessors kusvika pakuita chaiyo resistors yemageji ekunetsa. Pamageji ekutemesa, matete-mufirimu anorovera mageji akatsikirirwa akananga pane yakasimbiswa substrate isarudzo inobvisa akawanda ematambudziko akatarisana ne "bond strain gages" (inozivikanwawo sefoil gages, stationary strain gages, uye silicon strain magaji).
Kudzivirirwa kwekuremerwa kwesero rinotakura kunorevei?
Sero rega rega rinotakura rakagadzirirwa kutsausa pasi pemutoro nenzira inodzorwa. Mainjiniya anonatsiridza kukanganisa uku kuti kuwedzere kunzwisiswa kwe sensor uku uchiona kuti chimiro chinoshanda mukati me "elastic" dunhu. Kana mutoro wacho wabviswa, chimiro chesimbi, chakatsauka nenharaunda yaro elastic, inodzokera kune yayo yekutanga. Zvimiro zvinodarika iyi nharaunda elastic inonzi "yakawandisa". Sensor yakaremerwa inopinda "plastic deformation," umo iyo dhizaini inokanganisa zvachose, isingadzokeri kune yayo yekutanga. Kana yakamboremara mupurasitiki, sensor haichape mutsara wekubuda wakaenzana kune wakaiswa mutoro. Muzviitiko zvizhinji, kukuvara kwechigarire uye kusingadzoreki. "Overload Dziviriro" idhizaini yedhizaini inodzikamisa iyo sensor kutenderera kwakazara pasi peiyo yakakosha mutoro muganho, nekudaro ichidzivirira iyo sensor kubva kune isingatarisirwe yakakwirira static kana mitoro ine simba ingangokonzeresa deformation yepurasitiki.
Nzira yekuziva sei chokwadi chekutakura sero?
Kurongeka kwe sensor kunoyerwa uchishandisa ma parameter akasiyana ekushanda. Semuenzaniso, kana sensor inoremerwa kumutoro wayo mukuru, uyezve mutoro wacho wabviswa, kugona kwe sensor kudzoka kune imwechete zero-mutoro kubuda mune ese ari maviri chiyero che "hysteresis". Mamwe ma paramita anosanganisira Nonlinearity, Repeatability, uye Creep. Imwe neimwe yeiyi paramita yakasarudzika uye ine yayo yega muzana kukanganisa. Isu tinonyora ese aya ma parameter mudhetabheti. Kuti uwane tsananguro yehunyanzvi yeaya mazwi echokwadi, ndapota ona dudziro yedu.
Iwe une dzimwe sarudzo dzekuburitsa kune ako mutoro maseru uye kumanikidza sensors kunze kwemV?
Hongu, off-the-sherufu masaini ekugadzirisa mabhodhi anowanikwa aine simba kusvika ku24 VDC uye matatu marudzi esarudzo dzekubuda anowanikwa: 4 kusvika 20 mA, 0.5 kusvika 4.5 VDC kana I2C dijitari. Isu tinogara tichipa akatengeswa-pamabhodhi uye akazara akakwenenzverwa kune max mutoro sensor. Tsika mhinduro dzinogona kugadzirwa kune chero imwe inobuda protocol.
Nguva yekutumira: May-19-2023
