Detecting analysis method for heat conduction efficiency of plate and system thereof

Abstract

This invention provides one board conductive heat effect test and analysis method and its system, which comprises the following steps: a, selecting test part; b, putting the test part between upper and down chambers test benches with top and down contacting and to isolate two chambers isolation; c, setting test base temperature and heating temperature; d, computer control system fulfills test process; e, the system records and judges temperature difference to determine constant difference time T; f, fulfilling the test part; g, the system giving out test part conductive effect and giving non linear math regress module or neural network module rule function.

Description

technical field [0001] The invention relates to a method and system for detecting and analyzing heat conduction efficiency of a class of boards. This type of board is made of complex biomass materials composed of multiple materials or laminated composites. Background technique [0002] At present, scientists at home and abroad have developed theoretical and practical detection methods for the thermal conductivity of materials with medium thermal conductivity, such as plastics, epoxy resins, and glass. The general detection principle of these detection methods is to pass a constant current through a heating element attached to the surface (or lower surface) of the test piece, so that the heating element releases constant heat, and at the same time, the upper surface of the test piece at a certain distance from the heating element ( or the lower surface) to place a temperature acquisition sensor to receive the real-time temperature of the test piece. Then use the following fo...

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Problems solved by technology

Or mount a layer of metal film on the lower surface of the reinforced floor to improve the thermal conductivity. This structure is completely different from materials such as plastics, epoxy resins, and glass. If the existing thermal conductivity method is used to measure its thermal conductivity, this This makes the value of λ above more complicated and uncertain, because no one has proved that when different materials are combined, the value of λ can be accumulated, and the measurement results will not be accurate.

That is to say, the existing thermal conductivity measurement methods cannot accurately grasp the thermal conduction law of this complex biomass material composed of multiple materials or laminated composites.

Secondly, when using this method to test, the test piece is exposed to the outside world, and part of the energy will be released from the edge of the test piece to the environment during the test, so that the test result is inaccurate, resulting in a difference between the two test results very big

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