Ukukhethwa Kwezinto Zokusebenza Zama-PCB E-Ultrasound Ebanga Lezokwelapha
Izinhlelo zokuthwebula izithombe ze-ultrasound zidinga ukunemba okuphezulu, ukudluliselwa kwesignali okuvamise kakhulu, ukuthembeka, kanye nokuhambisana kwezinto eziphilayo. I-PCB isenhliziyweni yalezi zinhlelo, futhi ukukhetha izinto ezifanele kubalulekile ukuqinisekisa ukuphepha, ukunemba, kanye nokusebenza kwesikhathi eside ezinhlelweni zezokwelapha.
Kungani Ukukhetha Izinto Kubalulekile Kuma-PCB E-Medical Ultrasound?
Ezinhlelweni zezokwelapha, ikakhulukazi izithombe zokuxilonga, ama-PCB kumele:
- Sekela ukudluliswa kwesignali okuvama kakhulu (ngokuvamile okungu-20–100 MHz)
- Qinisekisa ukuzinza kokushisa kanye nokulahlekelwa kwesignali okuphansi
- Ihambisana nezinto ezihambisana ne-bio noma ezingezona ezinobuthi
- Gcina ukuqina kobukhulu ngesikhathi sokuhlanza
- Nikeza ukuthembeka okuphezulu kumadivayisi ezokwelapha amancane
Izinto Ezisetshenziswa Kakhulu Zama-PCB Ezokwelapha Nge-Ultrasound
1. Ama-Laminate Avame Kakhulu
- Izinto zokwakha: Rogers RO4350B, Taconic RF-35
- Izici: Ukulahleka kwe-dielectric okuphansi (Df), i-dielectric constant ezinzile (Dk)
- Isicelo: Isendlalelo sesiginali kumabhodi omshayeli we-transducer
2. I-FR-4 ene-Tg Ethuthukisiwe
- Izinto zokwakha: FR-4 Tg170+, S1000-2M
- Izici: Ukusebenza kahle kokushisa, kuyabiza kakhulu
- Isicelo: Amamojula wamandla, amabhodi okulawula
3. I-Polyimide Yezisekethe Eziguquguqukayo
- Izici: Ukuguquguquka okuphezulu, ukumelana nokushisa okuhle kakhulu
- Isicelo: Ukuxhumeka kwe-Probe, amadivayisi e-ultrasound agqokekayo
4. Izingxenyana zeCeramic
- Izinto zokwakha: I-Al₂O₃ (i-alumina), i-AlN (i-aluminium nitride)
- Izici: Ukushisa okumangalisayo, okusetshenziselwa imiklamo yamandla aphezulu amancane
- Isicelo: Iziphetho zangaphambili ze-ultrasound zokuxilonga eziphezulu
Izinto Ezibalulekile Okufanele Uzicabangele Ngokuklama
- Ukulawulwa Okuqhubekayo Kwe-Dielectric: Kubalulekile ekugcineni isivinini sesiginali kanye nokuqhathaniswa kwe-impedance
- I-Tangent Yokulahlekelwa (Df): I-Df engezansi iqinisekisa ukucaca okungcono kwesiginali kanye nokuphambuka okuphansi
- Ukumuncwa komswakama: Izinto ezimunca umswakama ophansi ziyamelana nokuwohloka ngesikhathi sokuhlanza
- Ukuhambisana ne-RoHS kanye ne-Biocompatibility: Kumelwe uhlangabezane nemithetho yezokwelapha efana ne-RoHS, REACH, kanye nezindinganiso ezihlobene ne-FDA
Ukukhetha izinto ze-PCB ezifanele zamadivayisi e-ultrasound esezingeni lezokwelapha kungaphezu kwesinqumo sobunjiniyela—kuyindaba yokuphepha kwesiguli kanye nokunemba kwezokwelapha. Ukubambisana nomkhiqizi we-PCB onolwazi ojwayelene nezindinganiso zezokwelapha kuqinisekisa ukuthi umkhiqizo wakho uhlangabezana nezidingo zomthetho kanye nokusebenza.
