et

β

1 symbol

Terminological databases

Metroloogia terminibaas

ID 572019 Last modified 21.03.2026
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Domain metrologyquality control
tarbija risk preferred
eriomane tarbija risk
kliendi risk
KR
β
consumer's risk preferred
specific consumer's risk
consumer risk
CR
β
  • tõenäosus, et konkreetne heakskiidetud toode on mittevastav
  • vastuvõtu tõenäosus, kui kvaliteeditaseme väärtus on vastuvõtu valimiplaaniga kehtestatud kui mitterahuldav
  • probability that a particular accepted item is nonconforming
  • probability of acceptance when the quality level has a value stated by the acceptance sampling plan as unsatisfactory
tarbija risk preferred
Good to know
  • Dokumendis ISO/IEC Guide 98-4 nimetatakse terminit "tarbija risk" kui "eriomane tarbija risk" (specific consumer's risk).
eriomane tarbija risk
kliendi risk
Usage examples
  • Kvaliteeditase võib olla seotud valiku mittevastavusega ja olla seega kliendi riskile mittevastav.
KR abbreviation
β symbol
consumer's risk preferred
Usage examples
  • In ISO/IEC Guide 98-4, the term "consumer's risk" is referred to as "specific consumer's risk".
specific consumer's risk
consumer risk
CR abbreviation
β symbol

Metroloogia terminibaas

ID 790434 Last modified 22.03.2026
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Domain metrologymeasuring instruments
läbimõõdusuhtearv preferred
läbimõõtude suhtearv
β
diameter ratio
β
  • ruutjuur voomõõturi kurgu pindala ja mõõtetoru sisepindala suhtest voomõõturist ülesvoolu
  • square root of the ratio of the area of the throat of the primary device to the internal area of the measuring pipe upstream of the primary device
  • ratio of the diameter of the orifice of the primary device to the diameter of the conduit upstream of the primary device
läbimõõdusuhtearv preferred
Usage examples
  • Standardites ISO 5167-2 ja ISO 5167-3 on läbimõõdusuhtearv esma-/primaarmõõturi suu läbimõõdu ja esma-/primaarmõõturist ülesvoolu asuva toru siseläbimõõdu suhtest ning standardi ISO 5167-4 korral, kui esma-/primaarmõõturist on ülesvoolu silindriline osa, mille läbimõõt on sama kui toru läbimõõt, on läbimõõdusuhtearv esmamõõturi suu läbimõõdu ja selle silindrilise osa läbimõõdu suhtest ülesvoolu rõhuavade tasapinnal.
läbimõõtude suhtearv
β symbol
diameter ratio
Usage examples
  • In ISO 5167-2 and ISO 5167-3 the diameter ratio is the ratio of the diameter of the throat of the primary device to the internal diameter of the measuring pipe upstream of the primary device. In ISO 5167-4, where the primary device has a cylindrical section upstream, having the same diameter as that of the pipe, the diameter ratio is the ratio of the throat diameter to the diameter of this cylindrical section at the plane of the upstream pressure tappings.
β symbol

Metroloogia terminibaas

ID 1156696 Last modified 22.03.2026
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Domain metrologymeasuring instruments
koonuse pindaladetegur
β
cone area factor
β
  • tegur, mille väärtus arvutatakse seosest β = [1 - (dc2/D2)]0,5, kus dc on koonuse läbimõõt koonuseserva tasapinnas, D on koonustoru läbimõõt betaservas
  • factor whose value is calculated from the relation β = [1 - (dc2/D2)]0,5, where dc is the diameter of the cone at the plane of the cone edge, and D is the diameter of the pipe at the beta edge
koonuse pindaladetegur
Usage examples
  • Kalibreerimata koonusmõõtureid saab kasutada torudes läbimõõduga 50 mm ja 500 mm ning koonuse pindaladeteguri väärtustega 0,45 ≤ β ≤ 0,75, kusjuures koonusmõõtureid väärtustega β > 0,75 tuleb kalibreerida ja koonusmõõtureid väärtustega β < 0,45 tavaliselt ei toodeta.
β symbol
cone area factor
Usage examples
  • Uncalibrated cone meters can be used in pipes with diameters 50 mm and 500 mm and with cone area factor 0,45 ≤ β ≤ 0,75, whereat cone meters with β > 0,75 shal be calibrated, and cone meters with values of β < 0,45 are not normally manufactured.
β symbol

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