A temperature measurement method based on time parameters associated to CoFeSiB microwire magneto-thermal behavior

In this paper, we present a novel method for temperature measurement based on the analysis of the characteristic time parameters associated with the magneto-thermal behavior of a CoFeSiB microwire. Firstly, we developed a method that utilizes time measurements, nowadays performed with high precision and resolution, for evaluating the temperature of the sensing element. Therefore, we developed a conceptional sensor prototype for studying the operational capability of such a strategy. We conduct an experimental campaign to investigate the temperature effect on the magnetization of the CoFeSiB sample in the range between -70 and 70 degrees C, which is relevant for many industrial applications. Our proof-of-concept device demonstrates a sensitivity ranging from 30 to 190 mu s /degrees C, and showcases the potential of time domain analysis for temperature measurement. Moreover, the developed device is small and lightweight, thus being attractive for applications in which payload and size are a significant concern.