Flying Test Concept, iingenelo kunye nokungeloncedo PCB Flying Test

Uvavanyo lwe-Flying yenye yeendlela zokukhangela umsebenzi wombane we-PCB (uvavanyo oluvulekileyo nolufutshane lwesekethe). Umvavanyi inaliti yokubhabha yinkqubo yokuvavanya iPCB kwindawo yokuvelisa. Ayisetyenziswanga kuyo yonke ibhedi yemveli koomatshini bokuvavanya kwi-intanethi-Izikhonkwane) ujongano, uvavanyo lwenaliti olubhabhayo lusebenzisa iiprobes ezine ukuya kwezisibhozo ezizimeleyo ezilawulwa ngokuzimeleyo ukuya kuvavanyo lwamanqaku aphantsi kovavanyo. I-UUT (iyunithi ephantsi kovavanyo) ithuthelwa kwisikhululo sovavanyo ngebhanti okanye enye inkqubo yokuhanjiswa kwe-UUT
Ngaphakathi kumatshini. Emva koko, i-probe yomatshini wokuvavanya idibanisa iphedi yokuvavanya kunye nokuvavanya into enye yeyunithi phantsi kovavanyo (UUT). Uvavanyo lovavanyo luqhagamshelwe kumqhubi ngenkqubo yokuphindaphinda (i-Signal generator, unikezelo lwamandla, njl.njl.) kunye nezinzwa (i-digital multimeter, i-counter frequency, njl. njl.) ukuvavanya amacandelo e-UUT. Xa icandelo livavanywa, amanye amacandelo e-UUT akhuselwe ngombane ngeprobe ukuthintela ukufunda uphazamiseko lweDijithali.

Umahluko phakathi kovavanyo lwenaliti ephaphazelayo kunye novavanyo lwe-fixture
◆ umatshini wokuvavanya inaliti endizayo sisixhobo esiqhelekileyo esisebenzisa indlela ye-capacitance. Uvavanyo lokuvavanya luhamba ngokukhawuleza kwinqanaba ngenqaku kwibhodi yesiphaluka ukugqiba uvavanyo.
◆ funda ibhodi esemgangathweni kuqala kwaye ufunde ixabiso eliqhelekileyo le-capacitance yenethiwekhi nganye.
◆ uvavanyo lokuqala kunye nendlela ye-capacitance, kwaye emva koko uqinisekise ngokuchanekileyo kunye nendlela yokuchasana xa i-capacitance elinganisiweyo ingekho kuluhlu olufanelekileyo.
◆ umlinganiselo wemigca emine unokuqhutywa.
◆ ngenxa yesantya esicothayo sokuvavanya, ifanelekile kuphela iisampuli zokuvavanya ngebhetshi encinci.

Izinto eziluncedo nezingalunganga:
◆ inaliti yovavanyo kulula ukuba yonakaliswe
◆ isantya esicothayo sovavanyo
◆ uvavanyo loxinaniso luphezulu, kwaye i-pitch encinci inokufikelela kwi-0.05mm okanye ngaphantsi
◆ akukho xabiso lokulungisa, ukonga iindleko.
◆ i-voltage yokumelana ayikwazi ukuvavanywa, kwaye uvavanyo lwebhodi ephezulu yoxinaniso lunomngcipheko omkhulu.