et

segmentdiafragma

1 substantive

Terminological databases

Metroloogia terminibaas

ID 1149888 Last modified 07.11.2025
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Domain metrologymeasuring instruments
segmentmõõteava
  • õhuke mõõteava/-plaat, mille ava on ringi segmendi kujuline
  • thin orifice plate the orifice of which is in the form of a segment of a circle the chord of which is horizontal
segmentmõõteava
Usage examples
  • Segmentmõõteavadel on osaliselt ümmargune ava, mis moodustab segmendi, mis sobib kasutada mõõtmiseks ideaalselt vedelike jaoks, mis sisaldavad raskeid tahkeid aineid või prahti, kuna see konstruktsioon hoiab ära ummistused, võimaldades osakestel vabalt läbida torujuhtme takistamata osa.
segmental orifice plate
Usage examples
  • Segmental orifice plates have a partial circular opening that forms a segment. This design is ideal for fluids containing heavy solids or debris, as it prevents blockages by allowing particulates to pass freely through the unobstructed part of the pipeline.

Metroloogia terminibaas

ID 628595 Last modified 21.03.2026
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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

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