Krap Tristan, Meurs Joris, Boertjes Janine, Duijst Wilma
Ars Cogniscendi Centre for Legal and Forensic Medicine, Wezep, Netherlands.
Department of Anatomy, Embryology and Physiology, Academic Medical Centre, Amsterdam, The Netherlands.
Int J Legal Med. 2016 Mar;130(2):447-56. doi: 10.1007/s00414-015-1186-2. Epub 2015 May 14.
In some cases, in the Netherlands, an additional layer is being added to the thermocouple, used to measure the rectal temperature in medicolegal death investigations. Because of this deviation from the standard method, questions arose regarding the accuracy and precision of the measured temperature. Therefore, a cooling experiment was carried out on a round body made of agar with an average thermal conductivity of 0.454 W/(m °C) while measuring the temperature with and without an additional layer around the thermocouple for three different starting temperatures: 36, 30, and 27 °C. The results show a significant difference between the measured values for the first 5 min when comparing with and without the additional layer. Further, a decrease in precision is present within the first minutes when using an additional layer. Therefore, it is concluded that it is best to measure the rectal temperature without an additional layer around the thermocouple and caution should be taken when measuring with an additional layer.
在荷兰的某些案例中，用于法医死亡调查中测量直肠温度的热电偶正在增加一层附加物。由于这种与标准方法的偏差，出现了关于测量温度的准确性和精确性的问题。因此，在一个由琼脂制成的平均热导率为0.454 W/(m·°C)的圆形物体上进行了冷却实验，在热电偶周围有和没有附加层的情况下，针对三种不同的起始温度：36°C、30°C和27°C测量温度。结果表明，在比较有附加层和没有附加层的情况下，前5分钟的测量值存在显著差异。此外，使用附加层时，最初几分钟内精度会降低。因此得出结论，最好在热电偶周围没有附加层的情况下测量直肠温度，使用附加层测量时应谨慎。
