To satisfy requirement of users, three sets of research apparatus will be developed, whose key part is a kind of distributed sampling shunt with ultra-low load effect. The apparatus includes: a wide range ultra-high precision current meter, a...
Division of Electricity and Magnetism
Overview
The task of Electricity & Quantum Standard Laboratory is to study standards for electrical metrology based on quantum physics and basic measurement theory concerned with electrical standard, as well as to establish and maintain a DC voltage standard based on Josephson effect and a DC resistance standard based on quantization Hall effect. It is currently dedicated to research an AC resistance standard based on quantization Hall effect, an...
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Evaluation System for Magnetic Field Uniformity of Magnetic Resonance Imaging
Through this project, it is expected to fill the domestic blank in calibration of intense magnetic field above 2T. It will contribute to design and application of domestic magnetic resonance...
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Quantum Mass Standard of Joule Balance
This project aims to deal with the development of international system of units. A quantum mass standard with higher accuracy whose value will not change over time or location is to be established...
International Cooperation
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The comparison between NIM and BIPM has been finished in November 1995. The result showed that the difference of quantum DC voltage standard between NIM and BIPM is only -0.1×10-10, uncertainty is 1.1X 10-10 (1 σ). It achieved the best result...
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The lab participated in international conference precision electromagnetic measurement (CPEM) and other international conferences.
