热电评估装置
热电特性评价装置
ZEM-3系列
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操作简单-测量温度范围从-80到1000摄氏度。
特点
- 采用具有出色的温度控制性红外金像炉和用于温差控制的微加热器
- 测量是计算机控制的，可以在特定温度下对每个温度差进行测量，并且可以进行去除反电动等的自动测量。
- 标准配有样品和引线的接触状况确认和V / I图
用途
- 半导体，陶瓷，金属和各种材料的热电特性
规格
| Model | ZEM-3L | ZEM-3LW | ZEM-3M8 | ZEM-3M10 |
|---|---|---|---|---|
| Temperature Range | -80℃ to 100℃ | -100℃ to 200℃ | RT, 50℃ to 800℃ | RT, 50℃ to 1000℃ |
| Measurement Properties | Seebeck coefficient, electric resistivity | |||
| Sample Size | 2 to 4 mm square or Φ x 5 to 22 mm length | |||
| Measurement Atomosphere | Low-pressure He gas | |||
| Optional | Cooling water circulator Thermoelectric generation simulation software Thin film attachment Measurements in various atmospheres (negotialble) |
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专利和规格
- 热电能JIS R 1650-1
- 抵抗率JIS R 1650-2
Measurement principle
A prism or cylindrical sample is set in a vertical position between the upper and lower blocks in the heating furnace. While the sample is heated, and held, at a specified temperature, it is heated by the heater in the lower block to provide a temperature gradient. Seebeck coefficient is measured by measuring the upper and lower temperatures T1 and T2 with the thermocouples pressed against the side of the sample, followed by measurement of thermal electromotive force dE between the same wires on one side of the thermocouple. Electric resistance is measured by the dc four-terminal method, in which a constant current I is applied to both ends of the sample to measure and determine voltage drop dV between the same wires of the thermocouple by subtracting the thermo-electromotive force between leads.
Measurement Example of P Type Si80Ge20 Sintered Compact
