Nekushandisa kuomarara kwesimbi conductors, iyo dhizaini gage yakasungirirwa kuPCBA inogona kuverengerwa nekushandurwa kwayo pachayo kukosha kwekupokana kana PCBA ichiremara uye ikava mechanically deform.Iyo quantified strain inogona kufananidzwa neiyo yekupedzisira strain yekuona njodzi yePCBA deformation kune zvikamu kana tin point kuputika kwezvikamu.Ipa nzira yePCBA maitiro ekuvandudza matanho.
Iyo strain test system inoona shanduko yevoltage yakakonzerwa nekuchinja kwe strain gauge kuramba kuburikidza ne Wheatstone bridge, uyezve inoshandura shanduko yevoltage kuita dhiri kuburikidza nechirongwa chiri mu strain test software.
Ruva rwekusvetwa igeji rekuyera rine magridi matatu akazvimirira anozvimiririra, ayo akaturikidzana pane imwe nzvimbo yakajairika kuyera kusvetwa pamwe nematemo azvo pane imwe nzvimbo yakafanana.
Kushungurudza kunotsanangurwa se (kushanduka kwehurefu) / (yekutanga kureba), ihwo huwandu hwemuviri husina dimension, muPCBA strain test, nokuti kukosha kwekutambudzika kuduku, kazhinji kunotsanangurwa ne microstrain (με), maererano ne106 * (kureba kuchinja) /(yekutanga kureba) kutsanangura microstrain.
MuPCBA strain test, iyo strain state yePCBA ndiyo mamiriro endege.Iyo strain test analysis system inogona kuverenga iyo main strain uye strain rate muPCBA process nekuyera iyo chaiyo-nguva strain kukosha mumativi matatu emaruva erudzi, kuitira kutonga kana dhizaini yechigadzirwa ichipfuura mwero.
Matanho anodarika muganhu wekuomerwa anoonekwa seakawandisa uye anoonekwa kuti agadzirise chiito.Miganho yekumanikidza inogona kutorwa kubva kune mutengi, chikamu chemupi, kana anozivikanwa maitiro mukati mebhizinesi / indasitiri (yakatorwa kubva IPC_JEDEC-9704A).
Ipo iyo dhizaini huru ndiyo yakakura uye diki diki orthogonal dhizaini mundege, perpendicular kune mumwe nemumwe uye tangent dhizaini munzira i zero.MuPCBA strain test, iyo dhizaini huru inowanzoverengerwa nekuyera seyakakosha metric criterion.Chiyero chekuomesera chinoratidza chiyero chekuchinja kwekunetseka panguva yeyuniti, iyo inoshandiswa kuyera njodzi yekukuvadza yezvikamu.
Strain gage
IPC_JEDEC-9704A
Strain test analysis system
Nguva yekutumira: Kubvumbi-22-2024