# The High Resistance Measurement up to 100 PΩ using a Low Resistance, a Low Voltage Source and a Commercial Digital Multimeter

• Yu, Kwang Min (Division of Physical Metrology, Korea Research Institute of Standards and Science) ;
• Lee, Sang Hwa (Division of Physical Metrology, Korea Research Institute of Standards and Science) ;
• Kang, Jeon Hong (Division of Physical Metrology, Korea Research Institute of Standards and Science) ;
• Kim, Wan-Seop (Division of Physical Metrology, Korea Research Institute of Standards and Science)
• Accepted : 2017.11.21
• Published : 2018.05.01

#### Abstract

The potentiometric measurement result for a high resistance up to $100P{\Omega}$ using a low resistance, a low voltage source and a commercial digital multimeter(DMM) is presented. With the method, a resistance can be easily, fast and economically measured. Using the method, resistance ranges over the $10G{\Omega}$ range which is difficult to measure using a commercial DMM and resistance ranges between $100T{\Omega}$ and $100P{\Omega}$ which cannot measure using an insulation tester were measured within accuracy of a few percent. It is expected that it can be useful to determine the temperature and voltage effect of a high resistance and an insulation material because it uses a reference resistance with a low resistance, very low temperature and voltage effect. Besides, it is expected that it can be useful to calibrate a dc high voltage divider with a large resistance ratio and a very low resistance because arbitrary resistance ratio measurements are possible with it.

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