et

membraan

1 substantive

Terminological databases

Metroloogia terminibaas

ID 571997 Last modified 29.03.2026
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Domain metrologymeasuring instrumentsmeasuring procedures
diafragma preferred
membraan
kilejas vahesein
vahejälgastus
katik variant
sulgur variant
diaphragm preferred
membrane
plan bracing
shutter variant
  • optikamõõtevahendeis valguskiirte teel olev läbipaistmatu vahesein, milles on (reguleeritav) ava
  • vahesein läätse valgusteel, millel on ava, mis reguleerib läbiva valguse kogust
  • device that allows light to pass for a determined period, exposing photographic film or a light-sensitive electronic sensor to light in order to capture a permanent image of a scene
  • stop in the light path of a lens, having an aperture that regulates the amount of light that passes
diafragma preferred
Usage examples
  • Diafragmaks võib olla nt vahesein, vaheplaat, ekraan.
membraan
kilejas vahesein
vahejälgastus
katik variant
sulgur variant
diaphragm preferred
membrane
plan bracing
shutter variant

Metroloogia terminibaas

ID 628595 Last modified 21.03.2026
View dataset
View dataset
Domain metrologymeasuring instrumentsmeasuring procedures
diafragma preferred
mõõtediafragma
mõõteava
membraan
vahesein
segmentdiafragma variant
ekstsentrikdiafragma variant
orifice plate preferred
metering orifice
segmental orifice plate variant
contcentric orifice plate variant
  • voomõõturi õhuke vahesein, millel on ava, mis on asetatud vooga risti, ja see kitsendab voo ja rõhuerinevuse, mille tõttu mõõtmine kitsenduses annab voomahu
    Good to know
    • Õhukesel vaheseinal on avasid kolme tüüpi: kontsentriline, ekstsentriline ja segmentaalne.
  • plate of flowmeters with a hole through it, placed perpendicular to the flow, and constricts the flow, and measuring the pressure differential across the constriction gives the flow rate
    Good to know
    • There are three type of orifice: concentric, eccentric, and segmental.
  • thin plate in wich a circular opening has been machined
diafragma preferred
Usage examples
  • Standardseid diafragmasid kirjeldatakse kui „terava kandilise servaga õhukesi vaheseinu“, kuna vaheseina/plaadi paksus on mõõteosa läbimõõduga võrreldes väike ja ava voo sissevoolu serv on terav ja kandiline.
  • Diafragmat kasutatakse kõige sagedamini vookiiruse mõõtmiseks torudes, kui vedelik on ühefaasiline (mitte gaaside ja vedelike või vedelike ja tahkete ainete segu) ja hästi segunenud, voog on pigem pidev kui pulseeriv, vedelik hõivab kogu toru (välistades muda või kinnijäänud gaasi), vooprofiil on ühtlane ja hästi arenenud ning vedeliku ja vookiirus vastavad teatud muudele tingimustele.
mõõtediafragma
mõõteava
membraan
Good to know
  • võõrsõna
vahesein
segmentdiafragma variant
ekstsentrikdiafragma variant
orifice plate preferred
Usage examples
  • Standard orifice plates are descriebed as "thin plate" and "with sharp square edge", because the thickness of the plate os small compared with the diameter of the measuring section and because the upstream edge of the orifice is sharp and square.
  • Orifice plates are most commonly used to measure flow rates in pipes, when the fluid is single-phase (rather than being a mixture of gases and liquids, or of liquids and solids) and well-mixed, the flow is continuous rather than pulsating, the fluid occupies the entire pipe (precluding silt or trapped gas), the flow profile is even and well-developed and the fluid and flow rate meet certain other conditions.
metering orifice
Usage examples
  • A metering orifice is a precision-engineered, restricted opening - typically a plate with a hole - installed in a pipe to measure fluid flow rates (liquids, gases, or steam) based on differential pressure, as described by Bernoulli's principle.
segmental orifice plate variant
contcentric orifice plate variant
eccentric orifice plate variant

Word forms

Inflection Type 22e

membraan membraanid
membraani membraanide
membraani membraane ~ membraanisid

Etymology

laensõna
  • membraan
    • Membrane 'membraan'
      • membrāna 'siseelundeid ümbritsev nahk, pärgament' sõnast membrum '(ihu)liige'

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