EP 1836460 A2 20070926 - METHOD FOR REGULATING A THERMAL OR CALORIMETRIC FLOWMETER
Title (en)
METHOD FOR REGULATING A THERMAL OR CALORIMETRIC FLOWMETER
Title (de)
VERFAHREN ZUR REGELUNG EINES THERMISCHEN BZW. KALORIMETRISCHEN DURCHFLUSSMESSGERÄTS
Title (fr)
PROCEDE DE REGLAGE D'UN APPAREIL DE MESURE THERMIQUE OU CALORIMETRIQUE DE DEBIT
Publication
Application
Priority
- EP 2005056855 W 20051216
- DE 102005001809 A 20050113
Abstract (en)
[origin: WO2006074850A2] The invention relates to a method for regulating a thermal or calorimetric flowmeter (1) which determines and/or monitors the flow rate of a measured medium (3) flowing through a pipe (2) or measuring tube (2) in a process by means of two temperature sensors (11, 12). The actual temperature (T<SUB>i</SUB>) of the measured medium (3) at a certain point in time (t<SUB>i</SUB>) is determined via a first temperature sensor (12) while a defined heating power which is calculated in such a way that a given difference in temperature (T<SUB>target</SUB>) occurs between the two temperature sensors (11, 12) is fed to a second temperature sensor, and the heating power (Q<SUB>i+1</SUB>) fed to the heatable temperature sensor at a subsequent point in time (t<SUB>i+1</SUB>) is determined in case of a deviation (T<SUB>target</SUB> - T<SUB>i</SUB>) of the actual difference in temperature T<SUB>i</SUB> measured in the actual state from the difference in temperature (T<SUB>target</SUB>) given for the setpoint state, said heating power (Q<SUB>i+1</SUB>) being determined taking into account the physical conditions in the process, which are reflected in a time constant (t).
IPC 8 full level
G01F 1/698 (2006.01); G01F 25/00 (2006.01)
CPC (source: EP US)
G01F 1/698 (2013.01 - EP US); G01F 25/10 (2022.01 - EP US)
Citation (search report)
See references of WO 2006074850A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006074850 A2 20060720; WO 2006074850 A3 20061116; CN 101103257 A 20080109; DE 102005001809 A1 20060727; EP 1836460 A2 20070926; RU 2007130676 A 20090220; RU 2362125 C2 20090720; US 2008307879 A1 20081218
DOCDB simple family (application)
EP 2005056855 W 20051216; CN 200580046585 A 20051216; DE 102005001809 A 20050113; EP 05850463 A 20051216; RU 2007130676 A 20051216; US 79503805 A 20051216