Real-time emissivity estimation using a smart sensor system for infrared temperature measurement

Abstract

Accurate temperature control is essential in domestic induction cooktops for energy efficiency and cooking per formance. One of the most suitable ways to measure temperature within the domestic induction cooktops is by using non-contact temperature measurement techniques like infrared (IR) temperature sensors. A key challenge in non-contact IR temperature measurement is the reliance on the emissivity of the object, which can lead to significant errors when emissivity is unknown or variable. The emissivity of cooking vessel is influenced by sur face properties, and its color, making precise measurement challenging. In this study, we developed an advanced sensor system capable of identifying the surface properties of cooking vessels, including color, allowing for the estimation of emissivity. This system enables accurate temperature measurement by adjusting the IR sensor's readings based on the cooking vessel's emissivity. The proposed method improves the accuracy of temperature measurement in domestic induction cooktops, leading to better temperature control and enhanced cooking results.