设计制作出一个幅值可调的恒流源及其测试系统，实现稳压二极管电压漂移参数的检测，至关重要。

To design and manufacture a constant-source with adjustable amplitude value and the test system, and to realize the examination of zener diode voltage drift parameter, is very important.

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针对特定厚度浓度测试设备和云母纸参数要求，找出了不同浓度厚度数值对应的模拟量电压值和十六进制数。

Considering the given thickness and consistency, the analog voltage and the hexadecimal which correspond to different thick and consistence are tested out.

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利用一个由恒流脉冲发生器和数据采集卡组成的简单测试系统测得制冷器在小电流下的电阻电压和塞贝克电压，通过这两个电压推导出ZT值、最大制冷温差。

The resistance and Seebeck voltages used to calculate the ZT and the maximum temperature difference are measured using a testing system composed of a DC pulse generator and a DAQ card.

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