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Put a machined guard around the pulse oximeter to keep the surface from it at about 0.2-0.3 (if it is and SMD part soldering height tolerance is about 0.2mm) and then simply screw down the resulting assembly.
Otherwise use weak springs to push the p.o. against the case, need to know the allowed stress on the body for that.
Devamını oku: Medical Electrics Manufacturing
#PCB Montajı
https://www.youtu.be/kX4gCs9szeA?si=_o1w0lNIu4HwRX7N
Birkaç doğrusal düzenleyiciye ihtiyaç duyan bir kart tasarlıyorum (5.5v'den 3v'ye ve 3v'den 1,6v'ye) but I am having difficulty selecting a suitable surface mount package type and size that will allow me to hand solder the IC to the PCB without too much difficulty.
PCB'min üst kısmının tamamında bakır dökülmesi var, GND ağının bir parçası olan. Kullanacağım yüzeye monte 1W LED'lerin ısı bloğunun dahili olarak LED'in + terminaline bağlı olduğu ortaya çıktı. +V voltajını yalıtmak için lehim maskesine güvenebilir miyim? (~3V) GND'den? Uzun vadeli?
bir tasarım yapıyorum 2 Her iki tarafında bileşenler bulunan PCB katmanı. SMT bileşenleri PCB'nin bir tarafıdır, ama TH (delikten) bileşenler her iki tarafta. Tedarikçinin bahsettiği birincil ve ikincil taraflar olarak adlandırılan bir şeyi anlamam gerekiyor.
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