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| A New Type of AC Impedance Measurement Standard Device |
| YAN Xiao-jun,HU Bei-bei,LI Ya-lu,WU Kang,YOU Li |
| Beijing Oriental Institute of Measurement & Test, Beijing 100083, China |
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Abstract A new type of AC impedance measurement standard is developed, which can resolve the traceability problem of AC impedance by producing any amplitude and angle. Between 100Hz to 1MHz, 0.1Ω to 10kΩ, the new type of AC impedance measurement standard, which is composed of AC impedance standard source and meter, can calibrate RLC digital meter, AC impedance and material impedance, and the best accuracy is 0.01%. By using direct measurement, substitution measurement and equipotential measurement, AC impedance measurement standard can be traced to material impedance standard, voltage ratio standard and phase standard. Thus a traceability chain of AC impedance is formed.
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Received: 19 September 2019
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