optical fibre testing
preferred label: آزمون تار نوری @fa
type: Concept
related: optical time-domain reflectometry

time-domain reflectometry
preferred label: بازتاب‌سنجی حوزه زمان @fa
type: Concept
narrower: optical time-domain reflectometry

optical variables measurement
preferred label: اندازه‌گیری متغیر نوری @fa
type: Concept
related: optical time-domain reflectometry

optical time-domain reflectometry
alternative label: OTDR
related: optical variables measurement
related: optical fibre testing
broader: time-domain reflectometry
preferred label: بازتاب‌سنجی حوزه زمان نوری @fa
type: Concept