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Pyroelectric material measuring apparatus

A technology of thermoelectric materials and measuring instruments, which is applied in the direction of material resistance, etc., to achieve the effects of fast system response, convenient operation, and simple realization

Inactive Publication Date: 2008-10-15
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to solve the problems in the prior art, to provide a thermoelectric material measuring instrument that can measure the Seebeck coefficient of the thermoelectric material from any direction and does not need to determine the polarity of the sample to be measured

Method used

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] As shown in Figures 1 and 2, a thermoelectric material measuring instrument includes a sample platform and a testing device thereof, the sample platform includes a base 1 and first and second sample holders 4, 5 arranged on the base 1, the first 1. Heating elements 9, 9' and cooling elements 11, 11' are arranged in the second sample holders 4, 5, and temperature sensors 15, 15' and voltage probes 17, 17', the testing device includes a temperature controller 14 connected with heating elements 9, 9' and refrigeration elements 11, 11', and a temperature controller 14 connected with heating elements 9, 9' and refrigeration elements 11, 11' The connected data collector 19 and the central controller connected with the temperature controller 14 and the data collector 19. Wherein, the sample stage is arranged inside the vacuum cover, and the base 1 mainly pla...

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Abstract

The invention relates to a thermoelectric material measurement instrument, comprising a sample stage and a testing device thereof. The sample stage comprises a base as well as a first sample clip and a second sample clip which are arranged on the base, wherein, the inside of the first sample clip and the inside of the second sample clip are both provided with heating elements and refrigerating elements; one end of the first sample clip and one end of the second sample clip near samples are both provided with temperature sensors and voltage probes; and the testing device comprises a temperature controller connected with the heating elements and the refrigerating elements, a data collector connected with the heating elements and the refrigerating elements, and a central controller connected with the temperature controller and the data collector. The instrument can measure the Seebeck coefficient of thermoelectric materials in any direction and need not confirm the polarity of the sample to be tested, which ensures that the test is simpler, more convenient and quicker.

Description

technical field [0001] The invention relates to the field of semiconductor material testing devices, in particular to a thermoelectric material measuring instrument. Background technique [0002] The study of thermoelectric materials is a research hotspot in material science. Thermoelectric materials refer to functional materials that directly convert thermal energy and electrical energy through their thermoelectric effect. As an energy conversion material, the application of thermoelectric materials does not require transmission parts, and there is no noise and no waste during operation. It is the same as the application of secondary energy sources such as solar energy, wind energy, and water energy, and has no pollution to the environment. The material has reliable performance, long service life and wide application prospects. [0003] At present, a series of thermoelectric materials have been developed, such as BizTe series, PbTe series, SiGe series and other alloys, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/14
Inventor 王自鑫任山梁晓峰周建英陈弟虎
Owner SUN YAT SEN UNIV
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