Vorrichtung zum Messen des Flusses eines Fluids

Details

Veröffentlichungs-Nr.

EP3537113

Aktenzeichen

EP18160704

Anmeldetag

8. März 2018

Veröffentlichung

28. Juli 2021

Erteilung

28. Juli 2021

Rechtsraum

EP

IPC

G01F1/684

Abstract

An apparatus for measuring a flow of a fluid (F), comprises a thermal flow sensor (2) with a sensitive area (21), and a channel (1) for guiding the fluid, which channel (1) comprises a measuring section (11) with a profile (A) perpendicular to a direction of the flow of the fluid (F), which profile (A) has a height (H) orthogonal to the flow of the fluid (F) and perpendicular to a plane defined by the sensitive area (21), and a width (W) orthogonal to its height (H). A core (C) of the profile (A) is defined as area of the profile (A) with maximal height (H1). The core (C) has a characteristic width (W1) defined as minimal uniform width (W) the core (C) takes along at least a quarter of its height (H) irrespective of any branches (111) laterally emanating from the core (C) or in view of any neck in the core (C) effecting an intermittent width (W) of the profile (A) different from the characteristic width (W1). The thermal flow sensor (2) is arranged and configured to measure the flow of the fluid (F) in the measuring section (11). The maximal height (H1) of the profile (A) is at least three times larger than the characteristic width (W1).

Anmelder

Firma

Sensirion AG

Land

🇨🇭 Schweiz

Fachgebiete