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Method for calibrating heat flow meter method conductometer based on guarded hot plate method

A technology of protective hot plate method and thermal conductivity meter, which is applied in the direction of material thermal development, etc., can solve the problems of inability to accurately calibrate the thermal conductivity meter of the heat flow meter method, and achieve the effect of avoiding inaccurate measurement of the instrument, realizing accurate calibration, and improving accuracy

Active Publication Date: 2018-06-12
ZHEJIANG MEASUREMENT SCI RES INST
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem in the prior art that the thermal conductivity meter of the calorimeter method cannot be calibrated accurately, and to provide a method for calibrating the thermal conductivity meter of the calorimeter method based on the guarded hot plate method

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  • Method for calibrating heat flow meter method conductometer based on guarded hot plate method
  • Method for calibrating heat flow meter method conductometer based on guarded hot plate method

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Embodiment Construction

[0029] The present invention will be further elaborated and described below in conjunction with the drawings and specific embodiments. The technical features of the various embodiments of the present invention can be combined accordingly without conflict with each other.

[0030] Such as figure 1 As shown, in this embodiment, the system for calibrating the heat flow meter thermal conductivity meter based on the protective hot plate method is implemented, including the protective hot plate method thermal conductivity meter 1, the gauge block 2, the precision thin film thermal resistance 3, the thermal conductivity standard plate 4, and the heat flow meter method. Thermal conductivity meter 5.

[0031] The thermal conductivity meter of the protective hot plate method includes the dual-test piece protective hot plate method thermal conductivity meter or the single-specimen protective hot plate method thermal conductivity meter, both of which need to be traced to the national measureme...

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Abstract

The invention discloses a method for calibrating a heat flow meter method conductometer based on a guarded hot plate method, and belongs to the field of calibration of thermal conductivity measuring apparatus. The method disclosed by the invention is characterized in that a guarded hot plate method conductometer is used for measuring a thermal conductivity value of a thermal conductivity standardplate, the thermal conductivity standard plate is assigned with a value at the corresponding temperature, and then the thermal conductivity standard plate assigned with the value is put into a heat flow meter method conductometer to be calibrated to perform a calibration procedure, thereby obtaining calibration factors of the heat flow meter method conductometer at the corresponding test temperature. Thus, the defect that a heat flow meter method conductometer with a fixed structure needs to be disassembled to solely calibrate heat flow meter parts is avoided, and meanwhilefurthermore, the problem of inaccurate apparatus measurement indirectly caused by disassembling the conductometer is avoided.

Description

Technical field [0001] The invention relates to a method for calibrating a heat flow meter method thermal conductivity meter based on a protective hot plate method, and belongs to the field of thermal conductivity measuring instrument calibration. Background technique [0002] Thermal conductivity is the most important thermal physical parameter of thermal insulation materials, and accurate measurement of it is of great significance. There are two types of methods for determining thermal conductivity of thermal insulation materials: steady-state method and transient method. Among them, the heat flow meter method thermal conductivity meter is a kind of steady-state method, based on the Fourier law of heat conduction, an indirect or relative method based on the thermal resistance of the test piece compared with the standard test piece. The heat flow meter method thermal conductivity meter is widely used in the production of thermal insulation materials because of its simple princi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 余时帆王晓崔超方晓琴
Owner ZHEJIANG MEASUREMENT SCI RES INST
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