van Marken Lichtenbelt Wouter D, Daanen Hein A M, Wouters Loek, Fronczek Rolf, Raymann Roy J E M, Severens Natascha M W, Van Someren Eus J W
Nutrition and Toxicology Institute Maastricht (NUTRIM), Department of Human Biology, Maastricht University, Maastricht, The Netherlands.
Physiol Behav. 2006 Jul 30;88(4-5):489-97. doi: 10.1016/j.physbeh.2006.04.026. Epub 2006 Jun 23.
Measurements of skin temperatures are often complicated because of the use of wired sensors. This is so in field studies, but also holds for many laboratory conditions. This article describes a wireless temperature system for human skin temperature measurements, i.e. the Thermochron iButton DS1291H. The study deals with validation of the iButton and its application on the human skin, and describes clinical and field measurements. The validation study shows that iButtons have a mean accuracy of -0.09 degrees C (-0.4 degrees C at most) with a precision of 0.05 degrees C (0.09 degrees C at most). These properties can be improved by using calibration. Due to the size of the device the response time is longer than that of conventional sensors, with a tau in water of 19 s. On the human skin under transient conditions the response time is significantly longer, revealing momentary deviations with a magnitude of 1 degrees C. The use of iButtons has been described in studies on circadian rhythms, sleep and cardiac surgery. With respect to circadian rhythm and sleep research, skin temperature assessment by iButtons is of significant value in laboratory, clinical and home situations. We demonstrate that differences in laboratory and field measurements add to our understanding of thermophysiology under natural living conditions. The advantage of iButtons in surgery research is that they are easy to sterilize and wireless so that they do not hinder the surgical procedure. In conclusion, the application of iButtons is advantageous for measuring skin temperatures in those situations in which wired instruments are unpractical and fast responses are not required.
由于使用有线传感器，皮肤温度测量往往很复杂。在现场研究中是这样，在许多实验室条件下也是如此。本文介绍了一种用于测量人体皮肤温度的无线温度系统，即Thermochron iButton DS1291H。该研究涉及iButton的验证及其在人体皮肤上的应用，并描述了临床和现场测量。验证研究表明，iButton的平均准确度为-0.09摄氏度（最高-0.4摄氏度），精确度为0.05摄氏度（最高0.09摄氏度）。通过校准可以改善这些特性。由于该设备的尺寸，其响应时间比传统传感器更长，在水中的时间常数为19秒。在人体皮肤的瞬态条件下，响应时间明显更长，会出现幅度为1摄氏度的瞬时偏差。iButton在昼夜节律、睡眠和心脏手术研究中已有应用描述。对于昼夜节律和睡眠研究，iButton进行的皮肤温度评估在实验室、临床和家庭环境中具有重要价值。我们证明，实验室测量和现场测量的差异有助于我们理解自然生活条件下的热生理学。iButton在手术研究中的优势在于它们易于消毒且无线，因此不会妨碍手术过程。总之，在有线仪器不实用且不需要快速响应的情况下，iButton在测量皮肤温度方面具有优势。
