Mokhoa oa ho hloaea Likheo tsa Mohala ka Tlase ho 10μm Ho Sebelisa Mokhoa oa Tlhahlobo oa AOI oa Marang-rang?

Sistimi ea inthaneteng ea optical inspection (AOI) ea inthaneteng ke sesebelisoa sa bohlokoahali ho etsa PCB le ho kopanya ka elektroniki, haholo bakeng sa ho bona likheo tse ka tlase ho 10μm. Ka tlase ke tlhaloso e felletseng ea mokhoa oa ho fihlela sena u sebelisa sistimi ea AOI ea inthaneteng:

1.Sebopeho sa Hardware le Sisteme ea Optical

• Khamera e nang le Qeto e Phahameng:
  Sebelisa kh'amera ea indasteri ea boemo bo holimo (mohlala, lipikselse tse limilione tse 16 kapa ho feta) ho nka litšoantšo tse hlakileng tsa likarolo tse nyane. Qeto e phahameng ke motheo oa ho lemoha likheo tsa mela tse ka tlase ho 10μm.
• Tlhophiso ea Mohloli oa Leseli:
  Sebelisa mabone a khanyang a phahameng a LED a kopantsoeng le mekhoa ea ho bonesa joalo ka lebone la selikalikoe, leseli la coaxial, kapa liketsahalo tse oblique ho netefatsa khanya e ts'oanang ea bokaholimo ba PCB.
• Lense ea mahlo:
  Sebelisa lilense tsa maekerosekoupo tsa boemo bo holimo (mohlala, 50x kapa ho feta) ho netefatsa kholo e lekaneng ea setšoantšo ho koahela lintlha tse ka tlase ho 10μm.

2.Ho Fumana Setšoantšo le ho Hlophisoa Pele

• Phatlalatso ea Litšoantšo e Phahameng ka ho Fetisisa:
  Sistimi ea AOI e nka litšoantšo tsa boemo bo holimo ba PCB e sebelisa lilense tsa optical le lik'hamera. Qeto ea setšoantšo hangata e fihla boemong ba submicron ho netefatsa ponahalo e hlakileng ea mela e menyenyane.
• Ntlafatso ea Litšoantšo:
  Etsa phokotso ea lerata, katoloso ea ho bapisa, le ho chorisa bohale ho ntlafatsa ho nepahala ha phumano e latelang.

3.Ntlafatso ea Litšoantšo le Algorithms

• Li-algorithms tsa ho lemoha moeli:
  Sebelisa li-algorithms tsa ho lemoha (mohlala, Canny Edge discovery) ho hloaea methapo ea methalo. Ka ho bona li-discontinuities metseng ea mela, sistimi e ka fumana likheo kapele.
• Morphological Processing:
  Etsa ts'ebetso ea morphological (mohlala, khoholeho le ho atolosoa) ho tlosa lerata le ho totobatsa likarolo tsa likheo.
• Feature Extraction:
  Ntša likarolo tsa geometri tsa likheo (mohlala, bolelele, bophara, le boemo) 'me u li bapise le maemo a seng a setiloe.

4.Tekanyo ea Sisteme le Ntlafatso

• Mokhoa oa ho lekanya:
  Sistimi ea inthaneteng ea AOI e hloka ho lekoa khafetsa ho netefatsa bonnete le botsitso ba litšoantšo. Sena se kenyelletsa tokiso ea ho sotha ha lense, ho lekanya ho tšoana ha mohloli oa leseli, le netefatso ea hore setšoantšo se rarolloe.
• Ntlafatso ea Paramethara:
  Ntlafatsa litekanyo tsa li-algorithms tsa ts'ebetso ea litšoantšo (mohlala, menyako ea ho lemoha le morphological kernel size) ho ipapisitse le litlhoko tsa 'nete tsa ho sibolla ho ntlafatsa kutlo le ho nepahala.

5.Tlhahlobo ea Nako ea 'Nete le Maikutlo

• Ho Fumana Nako ea 'Nete:
  Sistimi ea inthaneteng ea AOI e ka nka le ho sekaseka litšoantšo ka nako ea nnete nakong ea tlhahiso ea PCB, ea tsebahatsa ka potlako likheo tse ka tlase ho 10μm.
• Khethollo ea Sekoli le Ho tšoaea:
  Sistimi e hlophisa liphoso (mohlala, likheo, likheo, li-burrs) 'me e tšoaea libaka tsa tsona setšoantšong sa PCB.
• Maikutlo a Boleng:
  Fepa liphetho tsa tlhahlobo ho khutlela ho sistimi ea taolo ea tlhahiso ho lokisa lits'ebetso tsa tlhahiso (mohlala, ho lokisa liparamente tsa khatiso ea solder kapa ho nepahala ha sebaka) ka nako ea nnete, ho fokotsa liphoso.

6.Lipalo-palo le Analysis

• Lipalopalo tsa Sekoli:
  Sistimi ea AOI ka lipalo-palo e ka sekaseka likheo tse lemohuoeng le ho hlahisa lichate tsa kabo ea sekoli le litlaleho tsa sejoale-joale ho thusa baenjiniere ho ntlafatsa phallo ea tlhahiso.
• Ntlafatso ea Ts'ebetso:
  Ka ho hlahloba lintlha tse nang le bokooa, tseba mekhahlelo ea bohlokoa ea tlhahiso e ka bakang likheo (mohlala, khatiso ea solder paste, reflow soldering) 'me u nke mehato ea ho lokisa.

Qetello

Ka tlhophiso ea lisebelisoa tse phahameng tse nepahetseng, li-algorithms tse tsoetseng pele tsa ts'ebetso ea litšoantšo, le mekhoa ea maikutlo ea ho lemoha nako ea sebele, tsamaiso ea AOI ea inthaneteng e ka tseba hantle le ka nepo likheo tsa mela tse ka tlaase ho 10μm. Sena ha se ntlafatse tlhahiso ea tlhahiso ea PCB feela empa hape se fana ka ts'ehetso ea data bakeng sa ntlafatso ea ts'ebetso e latelang.