Wägesystem und Verfahren zur Bestimmung der Luftdichte und Luftauftriebskorrektur Beim Wiegen

Details

Veröffentlichungs-Nr.

EP4350306

Aktenzeichen

EP22200445

Anmeldetag

7. Oktober 2022

Veröffentlichung

10. Dezember 2025

Erteilung

10. Dezember 2025

Rechtsraum

EP

IPC

G01G23/01G01G21/26

Abstract

The invention relates to the field of weighing, in particular of weighing in mass calibration and/or weighing laboratories. The invention provides a method for determining air density ρ_a as well as a related weighing system 1 and a related set comprising a mass artefact 11. A method for determining an air buoyancy correction to a measured weighing value, the method using the determined air density, as well as a related computer program and a related computer-readable signal or medium are provided as well.The method comprises a step S2 of providing a mass artefact as a first weight piece 11 and at least two of a first mass value m₁ representing the mass of the first weight piece, a first density value ρ₁ representing the density of the first weight piece, and a first volume value V₁ representing the volume of the first weight piece. The method comprises further a step S3 of providing a second weight piece 12 as well as a second density value ρ₂ representing the density of the second weight piece. The method comprises further a step S4 of determining a first weighing value (w₁, Δw) of the first weight piece 11 using the weighing system 1, wherein the first weighing value is determined in the air for which the air density is to be determined.

Anmelder

Firma

Mettler-Toledo GmbH

Land

🇨🇭 Schweiz

Fachgebiete