Abstract: The invention relates to a device which is used for the heat-sealing of a thermoplastic synthetic film to a thermoplastic synthetic container. The inventive device has at least one thermal electrode (11) which is made from a material with high thermal conductivity. The electrode is equipped with a metal section (30) having electrical connection terminals (31) at its ends. A heat flux sensor (32) comprising two electrical connections (33) is also provided, and the lower face is fixed mechanically to the upper part of the above-mentioned section (30). In addition, the upper face of the heat flux sensor (32) is fixed to the lower face of a thermal capacitor (34) which is made from a material with high thermal diffusivity and conductivity. Furthermore, a thermocouple (35) is mounted in a cavity in the metal section (30).

Abstract: The invention device (100) for controlling combustion gases and the thermokinetic characteristics of thermal and chemical reactions of all processes comprises a tubular metallic body (1) which is closed on the ends thereof with a plug (2) provided with an input and output (8,9) and a cap (3) containing a metallic lens (11) arranged therein, the lens having a high thermal diffusivity and one of the faces (12) thereof contacting gaseous fluid (22). An isotropic chamber (5) for measuring a radiative flux is disposed inside the metallic body (1), and a heat flux sensor (20) is fixed on the median plane of the isotropic chamber (5).

Abstract: The invention concerns a device (10) for measuring exchanges of amounts of heat in non-stationary operational conditions, including an elongated housing (11) having one measuring end (12) closed and one connecting end (13) and a central cavity (14). The central cavity (14) contains a measuring cell (15) and electrical connection members (13). The housing (11) is extended by a hollow finger (17) which contains partly at least the measuring cell (15) which consists of a sensitive heat flux measuring element (18) sandwiched between a first heat conducting component (19) and a second heat conducting component (20). The first heat conducting component (19) is in contact with at the least one surface of the said housing (11), and in the second heat conducting component (20) is insulated from the housing and constitutes a constant heat capacity.

Abstract: The invention concerns a device (10) for measuring exchanges of amounts of heat in non-stationary operational conditions comprising an elongated housing (11) having one measuring end (12) closed and one connecting end (13) and a central cavity (14). The central cavity (14) contains a measuring cell (15) and electrical connection members (15). The housing (11) is extended by a hollow finger (17) which contains partly at least the measuring cell (15) which consists of a sensitive heat flux measuring element (18) sandwiched between a first heat conducting component (19) and a second heat conducting component (20)).