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Infrared Sensor-Based Temperature Control for Domestic Induction Cooktops
AbstractIn this paper, a precise real-time temperature control system based on infrared (IR) thermometry for domestic induction cooking is presented. The temperature in the vessel constitutes the control variable of the closed-loop power control system implemented in a commercial induction cooker. A proportional-integral controller is applied to establish the output power level in order to reach the target temperature. An optical system and a signal conditioning circuit have been implemented. For the signal processing a microprocessor with 12-bit ADC and a sampling rate of 1 Ksps has been used. The analysis of the contributions to the infrared radiation permits the definition of a procedure to estimate the temperature of the vessel with a maximum temperature error of 5 °C in the range between 60 and 250 °C for a known cookware emissivity. A simple and necessary calibration procedure with a black-body sample is presented.
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Lasobras, J.; Alonso, R.; Carretero, C.; Carretero, E.; Imaz, E. Infrared Sensor-Based Temperature Control for Domestic Induction Cooktops. Sensors 2014, 14, 5278-5295.View more citation formats
Lasobras J, Alonso R, Carretero C, Carretero E, Imaz E. Infrared Sensor-Based Temperature Control for Domestic Induction Cooktops. Sensors. 2014; 14(3):5278-5295.Chicago/Turabian Style
Lasobras, Javier; Alonso, Rafael; Carretero, Claudio; Carretero, Enrique; Imaz, Eduardo. 2014. "Infrared Sensor-Based Temperature Control for Domestic Induction Cooktops." Sensors 14, no. 3: 5278-5295.