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RASS

1 abbreviation

Terminological databases

Metroloogia terminibaas

ID 631126 Last modified 26.03.2024
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Domain metrologymeasuring instruments
radio acoustic sounding system preferred
  • mõõtesüsteem atmosfääri vajumiskiiruse mõõtmiseks, kasutades raadiolainete tagasihajumist akustilise laine esiküljelt, et mõõta heli kiirust erinevatel kõrgustel maapinnast
  • system for measuring the atmospheric lapse rate using backscattering of radio waves from an acoustic wave front to measure the speed of sound at various heights above the ground
raadioakustiline kõlasüsteem
Usage examples
  • Raadioakustiline kõlasüsteem on võimalik, kuna õhu kokkusurumine ja haruldane akustiline laine muudab dielektrilisi omadusi, tekitades edastatud radarisignaali osalise peegelduse, ning heli kiiruse kaudu saab arvutada õhu temperatuuri planeedi piirikihis.
Good to know
  • Raadioakustiliste kõlasüsteemide maksimaalne kõrgusvahemik on tavaliselt 750 meetrit, kuigi vaatlusi on teostatud ka kuni 1,2 km niiskes õhus.
radio acoustic sounding system preferred
Usage examples
  • A radio acoustic sounding system is possible because the compression and rarefaction of air by an acoustic wave changes the dielectric properties, producing partial reflection of the transmitted radar signal, and from the speed of sound, the temperature of the air in the planetary boundary layer can be computed.
Good to know
  • The maximum altitude range of radio acoustic sounding systems is typically 750 metres, although observations have been reported up to 1,2 km in moist air.
RASS abbreviation

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