Laser flash method thermal diffusivity measurement device and sample support structure
A support structure and thermal diffusivity technology, which is applied in the field of laser flash thermal diffusivity measurement devices and sample support structures, can solve problems such as reducing thermal diffusivity measurement efficiency, and achieve the effect of improving measurement efficiency
Active Publication Date: 2018-02-23
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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Problems solved by technology
[0004] The existing sample support structure usually has a fixed sample number of one, so in the process of measuring the thermal diffusivity of multiple samples, the samples need to be replaced continuously, thereby reducing the measurement efficiency of thermal diffusivity
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[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0030] like figure 1 , figure 2 As shown, the sample support structure includes: a tray 2, a support cylinder 3, a turntable 4, a base 7 and at least one sample cell 1;
[0031] The at least one sample cell 1 is fixedly installed on the tray 2, and a first light-transmitting hole is provided at the installation place of each sample cell 1 on th...
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The invention provides a laser flash method thermal diffusivity measurement device and a sample support structure. The sample support structure comprises a tray, a support cylinder, a turntable, a base and at least one sample reservoir; the at least one sample reservoir is fixedly installed on the tray, a first light transmitting hole is formed in the installation position of each sample reservoiron the tray, the distance between the center of each first light transmitting hole and the center of the tray is a first preset distance; a second light transmitting hole is arranged on the sample placement position of each sample reservoir, the center of each second light transmitting hole and the center of the first light transmitting hole below the second light transmitting hole are on the same straight line; the tray is fixedly installed at the top part of the support cylinder, the bottom part of the support cylinder is fixedly installed on a bearing of the turntable, the turntable and the base are fixedly connected, a third light transmitting hole is arranged in the base, the distance between the center of the third light transmitting hole and a first position of the base is the first preset distance, wherein the first position is the position where the center position of the tray directly faces the position of the base. Due to the sample support structure, the measurement efficiency of the thermal diffusivity is improved.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of thermal diffusivity measurement by laser flash method, and in particular, to a thermal diffusivity measurement device and a sample support structure by laser flash method. Background technique [0002] The principle used by the laser flash method thermal diffusivity measurement device is: a beam of pulsed laser is used to hit the sample, the heat absorption temperature of the sample rises, and the thermal diffusivity of the sample can be obtained by detecting the temperature change of the sample. [0003] The existing laser flash thermal diffusivity measurement device includes a sample support structure, and the sample support structure is used to support the sample to complete the measurement of the thermal diffusivity. [0004] The existing sample support structure usually has a fixed number of samples, so in the process of measuring the thermal diffusivity of multiple samples, the...
Claims
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IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 杨新圆张贺吕国义陈炜
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA