Abstract The black globe temperature (Tg) is employed in thermal comfort studies. It is mainly used to compute the Mean Radiant Temperature (MRT) required in bioclimatic analysis. A set of low cost Black Globe Thermometers (BGT) was developed to establish a suitable combination of temperature transducers, materials and globe diameters. The dynamic and static responses of the BGT were studied. A total of 18 BGT was deployed along with a data acquisition system based in the Arduino open-source platform. It was analyzed the influence of the globe material (metallic and polyethylene), globe diameter (100 mm and 67 mm for the metallic and 78 mm for polyethylene) and six types of temperature transducers (K type thermocouple, infrared temperature sensor, thermistor, RTD and two semiconductor-based transducers). It was observed that Tg estimation and response time were transducer and stimuli dependent. The BGT presents good responses for indoor measurements and it was established that the most accurate combination was achieved by the DS18B20 digital temperature sensor with a metallic globe of 67 mm of diameter.

中文翻译：

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使用各种传感器和替代材料的黑球温度计的评估

摘要 黑球温度 (Tg) 用于热舒适性研究。它主要用于计算生物气候分析所需的平均辐射温度（MRT）。开发了一套低成本的黑球温度计 (BGT)，以建立温度传感器、材料和球直径的合适组合。研究了 BGT 的动态和静态响应。总共部署了 18 个 BGT 以及基于 Arduino 开源平台的数据采集系统。分析了球体材料（金属和聚乙烯）、球体直径（金属为100 mm和67 mm，聚乙烯为78 mm）和六种温度传感器（K型热电偶、红外温度传感器、热敏电阻、RTD）的影响和两个基于半导体的换能器）。据观察，Tg 估计和响应时间取决于换能器和刺激。BGT 对室内测量表现出良好的响应，并且确定最准确的组合是由 DS18B20 数字温度传感器实现的，该传感器具有直径为 67 毫米的金属球体。