Sensors | |
Infrared Sensor-Based Temperature Control for Domestic Induction Cooktops | |
Javier Lasobras1  Rafael Alonso1  Claudio Carretero1  Enrique Carretero1  | |
[1] Applied Physics Department, University of Zaragoza, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain; E-Mails: | |
关键词: non-contact temperature measurement; infrared sensor; radiation detector; induction heating; temperature control; | |
DOI : 10.3390/s140305278 | |
来源: mdpi | |
【 摘 要 】
In 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.
【 授权许可】
CC BY
© 2014 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190027937ZK.pdf | 883KB | download |