EP 2232248 A1 20100929 - METHOD AND DEVICE FOR MEASURING THE THERMAL EFFUSIVITY OF A SURFACE UNDER STUDY
Title (en)
METHOD AND DEVICE FOR MEASURING THE THERMAL EFFUSIVITY OF A SURFACE UNDER STUDY
Title (de)
VERFAHREN UND VORRICHTUNG ZUM MESSEN DER WÄRMEABGABE EINER UNTERSUCHTEN OBERFLÄCHE
Title (fr)
PROCEDE ET DISPOSITIF DE MESURE DE L'EFFUSIVITE THERMIQUE D'UNE SURFACE D'ETUDE
Publication
Application
Priority
- EP 2008066761 W 20081204
- FR 0759603 A 20071206
Abstract (en)
[origin: WO2009071612A1] The invention relates to a method and a device for measuring the thermal effusivity of at least one volume of a surface under study (18). The method comprises making at least one contact of a predetermined duration between at least one tip (13) having a known thermal effusivity and submitted at the base thereof to a first temperature Tb, and the surface under study having a second temperature Ta lower than the first temperature Tb, and measuring the thermal exchange between said at least one tip and the surface under study, wherein the method comprises measuring the back-and-forth transit time of at least one bending acoustic wave that propagates inside said at least one tip up to the free end thereof in contact with the surface under study, a variation of the transit time following a temperature variation in the vicinity of said end.
IPC 8 full level
G01N 25/00 (2006.01); G01N 29/07 (2006.01); G01N 29/24 (2006.01); G10K 11/18 (2006.01)
CPC (source: EP)
G01N 25/18 (2013.01); G01N 29/07 (2013.01); G01N 29/2437 (2013.01); G01N 2291/0427 (2013.01)
Citation (search report)
See references of WO 2009071612A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009071612 A1 20090611; EP 2232248 A1 20100929; FR 2924809 A1 20090612; FR 2924809 B1 20100305
DOCDB simple family (application)
EP 2008066761 W 20081204; EP 08856900 A 20081204; FR 0759603 A 20071206