食品中欧姆加热温度分布监测方法的研究

磁共振成像(MRI)技术作为一种无损检测分析技术，近几年来在国外被广泛应用于对食品的加工和品质监控。欧姆加热技术尤其适用于固体颗粒食品和固相混合食品的加热，但是，监测欧姆加热的过程一直是一个难题。利用MRI快速测定欧姆加热过程中的温度，构建温度瞬时分布图，为建立欧姆加热的数学模型，加快欧姆加热的工业化进程提供依据。

Study on Measurement Way of Temperature Mapping on Ohmic-Heated Food System

Magnetic resonance imaging as a nondestructive technique, is used widely in the food processing and quality controlling. Ohmic heating is very suitable for the particulate foods and liquid-particulate foods. But it is always very difficult to measure the course of Ohmic heating. MRI is a good tool to quickly determine the temperature of Ohmic heating foods. So, we can use MRI to draw the instantaneous temperature distribution map, and develop the mathematical model of Ohmic heating, and found the basis of industrialized Ohmic heating.