High temperature processes of metal casting require the use of specialized instruments for measurements. A thermocouple is one such instrument frequently used due to its many advantages of low cost, high accuracy and ease of access. With aluminum being one of the most widely used metals in the metallurgical and automobile industries, there is the need for a custom thermocouple for use in these sectors. In this research work, a custom thermocouple designed from pyrolytic graphite (PG) and aluminum is developed. The research effort is then concentrated on determining the Seebeck coefficient of our instrument. A near-linear response was obtained for our instrument on a voltage-temperature graph. A thermopower/Seebeck coefficient of 14.4 $\mu V/℃$ was obtained for the heating experiment while the cooling experiment produced a sensitivity of 14.7 $\mu V/℃$.

金属铸造的高温过程需要使用专门的仪器进行测量。热电偶由于其低成本，高精度和易于操作的许多优点而经常使用。铝是冶金和汽车行业中使用最广泛的金属之一，因此需要在这些领域使用定制的热电偶。在这项研究工作中，开发了一种由热解石墨（PG）和铝设计的定制热电偶。然后，研究工作集中在确定仪器的塞贝克系数上。在电压-温度图上，我们的仪器获得了近乎线性的响应。热电/塞贝克系数为14.4$\mu V/℃$ 用于加热实验，而冷却实验的灵敏度为14.7 $\mu V/℃$。