首页> 外国专利> SYSTEM AND METHOD FOR THE MEASUREMENT OF MAGNETIC SUSCEPTIBILITY AND THE CONSTANT OF MAGNETIC ANISOTROPY OF SUPERPARAMAGNETIC NANOPARTICLES.

SYSTEM AND METHOD FOR THE MEASUREMENT OF MAGNETIC SUSCEPTIBILITY AND THE CONSTANT OF MAGNETIC ANISOTROPY OF SUPERPARAMAGNETIC NANOPARTICLES.

机译:超顺磁性纳米粒子的磁化率和磁各向异性常数的测量系统和方法。

摘要

The present invention relates to a system for measuring magnetic properties of superparamagnetic nanomaterials, which comprises a magnetic field generator that generates an alternating and sinusoidal magnetic field with variable frequency to heat the material to be analyzed. Said magnetic field generator is composed of a resonant coil and a function generator which is responsible for providing a rectangular signal to the magnetic field generator. Also, it possesses a power supply for supplying a high current to the magnetic field generator and an adiabatic located inside the resonant coil of the magnetic field generator, which is used to contain the material to be heated. Further, it involves a thermometer that is responsible for sensing the temperature of the material to be analyzed and a computer equipment that is in charge of acquiring data of the temperature of the material to be examined and processing thereof. Finally, it comprises a hall-effect current sensor that senses the cu rrent of amplitude and high frequency that flows through the resonant coil, a current amplifier that is responsible for increasing the current value measured by said sensor, and an oscilloscope that is used to determine the frequency of the magnetic field and its possible distortion. The present invention also refers to a method for measuring magnetic properties of superparamagnetic nanomaterials, which further employs mathematical calculations for the system to measure the magnetic properties described above.
机译:用于测量超顺磁性纳米材料的磁性的系统技术领域本发明涉及一种用于测量超顺磁性纳米材料的磁性的系统,其包括磁场发生器,该磁场发生器产生具有可变频率的交变正弦磁场以加热待分析材料。所述磁场发生器由谐振线圈和函数发生器组成,所述函数发生器负责向磁场发生器提供矩形信号。而且,它具有用于向磁场发生器提供大电流的电源和位于磁场发生器的谐振线圈内部的绝热体,其用于容纳待加热的材料。此外,它涉及负责感测待分析材料的温度的温度计和负责获取要检查的材料的温度的数据及其处理的计算机设备。最后,它包括一个霍尔电流传感器,该传感器感测流经谐振线圈的振幅和高频电流,一个电流放大器,负责增加由所述传感器测量的电流值,以及一个示波器,用于确定磁场的频率及其可能的失真。本发明还涉及一种用于测量超顺磁性纳米材料的磁性的方法,该方法还对该系统采用数学计算以测量上述磁性。

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