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1. 发明公开

KR20100003808A REVERSIBLE MAGNETIC PERMEABILITY MEASUREMENT APPARATUS 无效
标题翻译：可逆磁性渗透性测量装置
公开(公告)号：KR20100003808A
公开(公告)日：2010-01-12
申请号：KR20080063810
申请日：2008-07-02
申请人： KOREA RES INST OF STANDARDS , UNIV CHUNG ANG IND
发明人： RYU KWON SANG , PARK SOO YOUNG , PARK JONG SEO , CHEONG IN HYUN , YOON KEE BONG
IPC分类号： G01R33/02 , G01R33/34
CPC分类号： G01R33/1223
摘要： PURPOSE: A reversible magnetic permeability measurement apparatus is provided to measure the magnetic field on the surface of a specimen by using a potentiometer and a magnetic flux meter. CONSTITUTION: A surface type probe(10) comprises a coil(11) for applying DC magnetic field, a coil(12) for applying magnetic field, a detection coil(13), and a ferrite core(14). The potentiometer(20) senses the magnetic field induced on the surface of the specimen(1). An AC generator(30) applies the AC magnetic field to the coil for applying the AC magnetic field. A phase locked amplifier(40) measures a reversible permeability induced in the detection coil. The magnetic flux meter(50) measures the induced magnetic field on the surface of the specimen. A power amplifier(70) applies the electricity the coil for applying the DC magnetic field. A microcomputer(80) directly calculates the reversible permeability and the magnetic field.
摘要翻译：目的：提供可逆磁导率测量装置，通过使用电位计和磁通计测量样品表面的磁场。构成：表面型探针（10）包括用于施加直流磁场的线圈（11），用于施加磁场的线圈（12），检测线圈（13）和铁氧体磁心（14）。电位计（20）感测在样品（1）的表面上感应的磁场。交流发电机（30）将AC磁场施加到用于施加交流磁场的线圈。锁相放大器（40）测量在检测线圈中感应的可逆磁导率。磁通量计（50）测量样品表面上的感应磁场。功率放大器（70）施加用于施加直流磁场的线圈的电力。微型计算机（80）直接计算可逆磁导率和磁场。

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