et

αD

1 symbol

Terminological databases

Metroloogia terminibaas

ID 1143236 Last modified 10.06.2026
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Domain Standardisation - Metrology
tuvastamisnurk
tabamisnurk
αD
angular range of detection
αD
  • valguskiirte nurkvahemik, mida objektiiv saab koguda
  • angular range of light rays that can be gathered by the objective
tuvastamisnurk
Usage examples
  • Tuvastamisnurk on nurk, mille abil objektiiv/tajur oma kiirtetipuga suudab tuvastada mõõteobjekti pinnatopograafiat iseloomustavad suurused.
tabamisnurk
αD symbol
angular range of detection
Usage examples
  • The angular range of detection detection is the angle at which the lens/sensor can detect the quantities characterizing the surface topography of the measurement object with its beam tip.
αD symbol

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