利用磁性纳米粒子优化温度估计:一组方程求解方法的研究

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2013-05-06 DOI:10.1109/I2MTC.2013.6555629

Jing Zhong, Wenzhong Liu, Shiqiang Pi, Pu Zhang

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引用次数: 3

摘要

本文研究了磁性纳米粒子温度估计的一组求解方程。为了实现磁性纳米粒子的温度估计，需要使用一种解来求解这组方程。而方程组的解是影响测温精度的关键因素。为了确定解与温度探测精度的依赖关系，采用矩阵解和最小二乘法对方程组进行了仿真求解。仿真结果表明，矩阵解允许最大温度探测误差为2 K，标准偏差为0.79 K，最小二乘解允许最大温度探测误差为0.08 K，标准偏差为0.034 K。结果表明，采用最小二乘优化解求解方程组，测温精度提高了20倍。

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Optimization for temperature estimation using magnetic nanoparticle: A set of equations solving solution investigation

This paper investigates a set of equations solving solution for magnetic nanoparticle temperature estimation. To achieve the temperature estimation using magnetic nanoparticles, a solution should be employed to solve the set of equations. And the solution to solve the set of equations is a key factor that affects the accuracy of temperature probing. To determine the dependence of the solution on the temperature probing accuracy, the matrix solution and least square solution were presented to solve the set of equations by simulation. The simulation results shows that, the matrix solution allows a maximum temperature probing error of 2 K with a standard deviation of 0.79 K, whereas the least square solution allows a maximum temperature error of 0.08 K with a standard deviation of 0.034 K. It indicates that the temperature probing accuracy was improved by a factor of 20 using the optimized solution of least square solution to solve the set of equations.

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2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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