Seebeck coefficient measuring system

A measurement system and coefficient technology, applied in the field of Seebeck coefficient measurement system, can solve the problems of no voltage protection of the sample under test, inability to measure the positive and negative temperature difference of the sample, etc., to reduce the impact, reduce the stabilization time, and improve the response speed. Effect

Active Publication Date: 2014-01-15
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0011] However, the applicant found that the prior art Seibel coefficient measurement system has the following defects: (1) Since the system only has a heater at one end of the sample, it can only measure the positive temperature difference of the sample, and cannot measure the pos

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[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0047] It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. And in the accompanying drawings, it is marked for simplicity or convenience. Furthermore, implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints.

[0048] In an exemplary embodiment of the present invention...

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Abstract

The invention provides a seebeck coefficient measuring system, comprising a test sample platform, a temperature difference heating platform, a hot end sample placing platform, a cold end sample placing platform, a signal acquiring and processing system and a temperature control system, wherein the test sample platform is used for placing a to-be-tested sample and forming a predetermined temperature difference between two ends of the to-be-tested sample; the temperature difference heating platform comprises a temperature difference heating platform body, a hot end heating pillar and a cold end heating pillar, wherein the hot end heating pillar and the cold end heating pillar are arranged on the temperature difference heating platform body, the hot end heating pillar and the cold end heating pillar insulate heat from each other, and have respective heating systems, respectively; the hot end sample placing platform and the cold end sample placing platform are arranged on the hot end heating pillar and the cold end heating pillar, respectively, and are used for placing the hot end and the cold end of the to-be-tested sample; the signal acquiring and processing system is used for calculating the seebeck coefficient; and the temperature control system is used for controlling the temperature difference between two ends of the to-be-tested sample. The seebeck coefficient measuring system provided by the invention can realize the positive and negative temperature difference measurements of the sample.

Description

technical field [0001] The invention relates to the technical field of measurement in the electronics industry, in particular to a Seebeck coefficient measurement system. Background technique [0002] Thermoelectric materials have the advantages of small size, light weight, no mechanical parts, and no noise, which are difficult to match with ordinary mechanical refrigeration or power generation methods. The characterization of thermoelectric materials is the dimensionless figure of merit ZT=S 2 σ / κ, where S is the Seebeck coefficient, σ is the electrical conductivity, and κ is the thermal conductivity. Its intuitive meaning is the ratio of refrigeration absorption energy to energy consumption. A good thermoelectric material should have a large Seebeck coefficient, large electrical conductivity and small thermal conductivity. [0003] Organic conductor or semiconductor thermoelectric material is a very promising thermoelectric material. Some organic materials have a very ...

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Application Information

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IPC IPC(8): G01N25/20
Inventor 崔大付蔡浩原李亚亭陈兴张璐璐孙建海任艳飞
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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