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首页> 外文期刊>Japanese journal of applied physics >New bridge-circuit-type detector to measure precise resistance change of strain gauge at low temperature and magnetic field
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New bridge-circuit-type detector to measure precise resistance change of strain gauge at low temperature and magnetic field

机译:新型桥式检测器,可在低温和磁场下测量应变计的精确电阻变化

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摘要

We report a new highly accurate and versatile bridge-circuit-type detector that has a simple structure and demonstrates a low degree of error for measurements of thermal expansion and magnetostriction by the strain gauge method. As an example, a commercial physical property measurement system (PPMS) is combined with a compact bridge-circuit box. Thermal expansion and magnetostriction are calculated from the resistance of the bridge and bridge voltage, measured by the operation of a standard PPMS resistivity option. The performance of the new detector is demonstrated by measuring the temperature and magnetic field dependences of the strain to obtain the thermal expansion coefficient and magnetostriction of the single crystals of rare-earth compounds RAl2 (R = Dy, Tb). (C) 2016 The Japan Society of Applied Physics
机译:我们报告了一种新型的高精度,多功能的桥式检测器,该检测器具有简单的结构,并且通过应变仪方法测量热膨胀和磁致伸缩时显示出较低的误差。例如,将商业物理性能测量系统(PPMS)与紧凑的桥式电路箱结合在一起。根据桥的电阻和桥电压,通过标准PPMS电阻率选件的操作测量得出热膨胀和磁致伸缩。通过测量应变的温度和磁场依赖性来获得稀土化合物RAl2(R = Dy,Tb)单晶的热膨胀系数和磁致伸缩,可以证明该新型检测器的性能。 (C)2016年日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2016年第4期|046601.1-046601.5|共5页
  • 作者单位

    Kanazawa Univ, Inst Sci & Engn, Kanazawa, Ishikawa 9201192, Japan|Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan;

    Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan;

    Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan;

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