EP 2972129 A1 20160120 - THERMAL FLOW SENSOR FOR DETERMINING A GAS OR THE COMPOSITION OF A GAS MIXTURE AND THE FLOW SPEED OF THE GAS OR THE GAS MIXTURE
Title (en)
THERMAL FLOW SENSOR FOR DETERMINING A GAS OR THE COMPOSITION OF A GAS MIXTURE AND THE FLOW SPEED OF THE GAS OR THE GAS MIXTURE
Title (de)
THERMISCHER STRÖMUNGSSENSOR ZUR BESTIMMUNG EINES GASES ODER DER ZUSAMMENSETZUNG EINES GASGEMISCHES, SOWIE DESSEN STRÖMUNGSGESCHWINDIGKEIT
Title (fr)
CAPTEUR D'ÉCOULEMENT THERMIQUE SERVANT À DÉTERMINER UN GAZ OU LA COMPOSITION D'UN MÉLANGE GAZEUX AINSI QUE SA VITESSE D'ÉCOULEMENT
Publication
Application
Priority
- DE 102013102398 A 20130311
- EP 2014053533 W 20140224
Abstract (en)
[origin: WO2014139786A1] The invention relates to a thermal flow sensor (1) for determining a gas or the composition of a gas mixture (2) and the flow speed of the gas or the gas mixture, comprising: - a substrate (3) onto which at least one first dielectric layer (6) is applied; - at least one heating structure (8) which is applied onto the first dielectric layer (6) and which is used to heat the gas or the gas mixture (2); - at least one first temperature sensor element (9) which is applied onto the first dielectric layer (6) at a distance from the heating structure (8) and which detects the temperature of the gas or the gas mixture (2) heated on the heating structure (8); - a regulating device (11) which regulates the heating structure (8) in a first operating state such that the heating structure has a specified temperature and which regulates the heating structure (8) in a second operating state such that a power supplied to the heating structure (8) corresponds to a specified power; and - an analyzing unit (12) which ascertains at least one physical property of the present gas or the gas mixture (2) using the operating states and which determines the present gas or the composition of the gas mixture (2) and the flow speed of the gas or the gas mixture using said physical property.
IPC 8 full level
G01F 1/699 (2006.01); G01F 1/692 (2006.01); G01N 27/18 (2006.01)
CPC (source: EP US)
G01F 1/68 (2013.01 - US); G01F 1/692 (2013.01 - EP US); G01F 1/699 (2013.01 - EP US); G01N 25/00 (2013.01 - US); G01N 33/0027 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102013102398 A1 20140911; DE 102013102398 B4 20240502; DE 102013102398 B8 20240627; EP 2972129 A1 20160120; US 10101285 B2 20181016; US 2016025660 A1 20160128; WO 2014139786 A1 20140918
DOCDB simple family (application)
DE 102013102398 A 20130311; EP 14706560 A 20140224; EP 2014053533 W 20140224; US 201414773802 A 20140224