Conductivity measurements are an important tool for quality control of aluminum alloys in aircraft manufacture. Industrial measurements using commercial conductivity meters are performed using eddy currents (60 kHz) whereas many conductivity standards are traceable through measurements at DC. A combined project of NPL, PTB, and NMi has been started aiming a.o. at improving the agreement of conductivity measurements with DC and AC methods. In this paper we describe the first results of a new methodology for DC conductivity measurements in the Van der Pauw geometry.
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机译：电导率测量是飞机制造中铝合金质量控制的重要工具。使用商业电导率计的工业测量使用涡流（60 kHz）进行（60 kHz），而许多电导率标准可追溯到DC的测量。 NPL，PTB和NMI的组合项目已经开始瞄准A.O.改善DC和AC方法电导率测量的协议。在本文中，我们描述了van der Pauw几何中的DC电导率测量的新方法的第一个结果。
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