The objective of this study was to investigate the ‘lift-off effect’ in zinc open cells, where an anomalously large change in temperature is observed when the standard platinum resistance thermometer (SPRT) is lifted off the bottom of the re-entrant tube during an immersion profile measurement. The goal was to determine the most important influences and hence what measures could be taken to mitigate it. The influences investigated were the filling gas, re-entrant tube material, re-entrant tube exterior surface condition, and the SPRT design. For each of these influence variables, three options were chosen. Since testing all combinations of different configurations arising would be extremely time consuming, the authors employed the optimal ‘design of experiments’ method using orthogonal arrays described by the Taguchi method, which is commonly used in manufacturing to optimise processes. Nine test configurations were identified, giving the necessary information on the interrelation between all influence variables. According to these results, the ideal configuration that yields the optimum immersion profile is a borosilicate tube, with full sandblasting and using nitrogen as filling gas for the cell. In addition, one particular SPRT design was found to be the least sensitive to the lift-off effect.

这项研究的目的是研究锌开孔电池中的“剥离效应”，在此过程中，当标准铂电阻温度计（SPRT）从凹腔管的底部升起时，观察到温度出现异常大的变化。沉浸曲线测量。目的是确定最重要的影响，并因此可以采取哪些措施来减轻影响。研究的影响是填充气体，凹角管材料，凹角管外表面状况和SPRT设计。对于每个影响变量，选择了三个选项。由于测试出现的不同配置的所有组合都会非常耗时，因此作者采用了Taguchi方法描述的正交阵列的最佳“实验设计”方法，通常用于制造以优化流程。确定了九种测试配置，提供了所有影响变量之间相互关系的必要信息。根据这些结果，产生最佳浸没曲线的理想配置是硼硅酸盐管，该管应进行充分喷砂处理，并使用氮气作为电池的填充气体。此外，发现一种特殊的SPRT设计对提离效果最不敏感。