Core temperature measurements have gained a growing interest as the development of this value can be used to estimate the mental and physical performance of workers or athletes. It can also be used to plan the application of warming of perioperative patients to reduce risks during or due to surgery. While invasiveness and accuracy was correlated up to know, several sensor principles are known today, that can measure with the sensor attached to the skin. Some of these are presented here, while for one solution, the results of clinical studies are presented that prove the competitiveness with invasive methods of this sensor. Offering a simple method for core temperature sensing could increase the acceptance to monitor this and achieve the mentioned effects.
Uth, M. F., Koch, J., & Sattler, F. (2016). Body Core Temperature Sensing: Challenges and New Sensor Technologies. In Procedia Engineering (Vol. 168, pp. 89–92). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2016.11.154