en

∆p

1 symbol

Terminological databases

Metroloogia terminibaas

ID 574620 Last modified 29.12.2025
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Domain metrologymeasuring instrumentsmeasuring procedures
staatiline rõhulang preferred
∆p
rõhkude vahe variant
static pressure loss preferred
∆p
  • gaasi voolamisel gaasiarvesti sisestusava ja väljumisavaga seotud rõhkude keskmine erinevus
  • mean difference between the pressures at the inlet and outlet of the gas meter while the gas is flowing
staatiline rõhulang preferred
Usage examples
  • Staatiline rõhulang vahetult diafragmas sõltub gaasivoo kiirusest.
∆p symbol
rõhkude vahe variant
static pressure loss preferred
∆p symbol
pressure differential variant

Metroloogia terminibaas

ID 790408 Last modified 29.12.2025
View dataset
View dataset
Domain metrologymeasuring procedures
rõhuvahe
differential pressure
DP
  • erinevus staatiliste rõhkude vahel, mis on saadud mõõtmisel toruseina mõõtekohtade juures, millest üks asub ülesvoolu ja teine mõõtevahendist allavoolu poolel, sisestatuna sirgesse vootorusse, kui on arvesse võetud kõrguste erinevust üles- ja allavoolu rõhumõõtekohtade vahel
  • esmaseadme tekitatud rõhuerinevus, kui arvesse võetakse voo sisse- ja väljavoolu kohtades rõhuühenduste vahelist näiduerinevust
  • difference between the (static) pressures measured at the wall pressure tappings, one of which is on the upstream side and the other of which is on the downstream side of a primary device, inserted in a straight pipe through which flow occurs, when any difference in height between the upstream and downstream tappings has been taken into account
  • pressure difference generated by a primary device when any difference in datum level between the upstream and downstream pressure tappings is taken into account
rõhuvahe
Usage examples
  • Terminit „rõhuvahe“ kasutatakse ainult siis, kui rõhumõõtekohad on iga mõõtevahendi jaoks kindlaksmääratud asendites.
∆p symbol
differential pressure
Usage examples
  • The term “differential pressure” is used only if the pressure tappings are in the positions specified for each standard primary device.
DP abbreviation
∆p symbol

Metroloogia terminibaas

ID 585459 Last modified 29.12.2025
View dataset
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Domain Standardisation - Metrology
rõhulang preferred
rõhuvahe
rõhulangus
static pressure loss preferred
pressure differential
  • keskmine erinevus gaasiarvesti sisse- ja väljalaskeava rõhu vahel gaasi voolamise ajal
  • mean difference between the pressures at the inlet and outlet of the gas meter while the gas is flowing
rõhulang preferred
Usage examples
  • Vedelike torustikus voolamisel tekib rõhulang, seotuna vedeliku hõõrdumisega vastu torustiku seina.
rõhuvahe
rõhulangus
∆p symbol
static pressure loss preferred
Usage examples
  • When liquids flow in a pipeline, a static pressure loss occurs due to the friction of the liquid against the pipe wall.
pressure differential
∆p symbol

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