Cracks can be found in ‘working’ ceramic capacitors, using an electrical tone-burst delivered to the terminals, claims the US National Institute of Standards and Technology (NIST). The impulse sets up acoustic vibrations (~1MHZ), which can be analysed electrically at the terminals. Phase shifts versus vibration magnitude are greater when cracks are present. “Industrial screening, such ...
Electro-acoustic scan finds cracks in ceramic capacitors
from ElectronicsWeekly » News http://ift.tt/1UByaab
via Yuichun
沒有留言:
張貼留言