Abstract
As an efficient technique, microwave heating is applied for various thermal processes in recent years. Information of temperature field distribution is important to security and stability in the process of microwave heating. In this paper, we investigate a three-dimensional temperature field distribution reconstruction algorithm using ultrasonic thermometry. Four three-dimensional temperature field distribution models with different complex levels are used in the simulation experiments. The error analysis between the temperature field distribution models and the reconstructed ones indicates that the proposed reconstruction algorithm possesses high reconstruction precision.
Highlights
As an efficient technique, microwave heating is applied for various thermal processes, such as chemical engineering, metallurgic process and manufacturing industry.[1,2] Compared with conventional heating methods, it offers many benefits such as:[3,4,5] rapid heating rate, short processing time, which saves energy and time, deep penetration of the microwave energy, instantaneous and precise electronic control and clean heating processes which do not generate secondary pollution
Microwave heating is applied for various thermal processes in recent years
We investigate a three-dimensional temperature field distribution reconstruction algorithm using ultrasonic thermometry
Summary
Microwave heating is applied for various thermal processes, such as chemical engineering, metallurgic process and manufacturing industry.[1,2] Compared with conventional heating methods, it offers many benefits such as:[3,4,5] rapid heating rate, short processing time, which saves energy and time, deep penetration of the microwave energy, instantaneous and precise electronic control and clean heating processes which do not generate secondary pollution. Microwave heating is a kind of non-contact and internal heating technology It occurs when there is an interaction between a material and an electric field at molecular level by exciting molecules of the objects.[10] temperature rises from the inside to the surface of materials. A three-dimensional temperature field reconstruction algorithm using ultrasonic thermometry is investigated. The basic theory of ultrasonic thermometry is relied on the relationship between the speed of ultrasonic and the property of medium ultrasonic travels.[19] If the speed is measured between two ultrasonic transducers along its path, the average temperature of this path will be estimated It will form a sensor network if several ultrasonic transducers are installed in a measure space, like a microwave heating chamber.
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