霍尔电阻

量子化霍尔电阻国家标准的研究

A Study on the National Standard of Quantum Hall Resistance

量子霍尔电阻的精密测量

Precision Measurement of Quantum Hall Resistance

为了适应我国加入WTO以后，鉴定结果国际互认的要求，从直流量子化霍尔电阻标准导出交流电阻标准从而完成交直流电阻标准转换的工作已迫在眉睫。

In order to keep consistency with international units after joining the WTO , it is urgent to accomplish the transform of AC / DC quantum Hall resistance standard .

量子霍尔电阻作为电阻自然基准的研究

Study of the Quantized Hall effect as a natural resistance standard

中国计量科学研究院建成量子化霍尔电阻标准

The quantum hall resistance standard in NIM

中国的量子化霍尔电阻标准

QHE Resistance Standard in China

高温超导体霍尔电阻和霍尔角在涡旋玻璃相变附近的普适标度律及统一霍尔电阻方程

Universal scaling relations of the Hall resistivity and Hall angle near the vortex glass transition and the unified Hall resistivity equation

要进一步提高交流量子化霍尔电阻的准确度，则需要在一些基础性的研究方面作更为深入的工作。

It is neccessary to make a thorough study on some fundamental aspects to further increase the accuracy of AC quantum Hall resistance .

结合其他措施，完成了综合不确定度为10-10量级的量子化霍尔电阻标准装置。

With the help of other measures put forward by the authors , a Quantum Hall Resistance Standard with uncertainty of several parts in 10 ~ ( - 10 ) has been established .

目前从交流量子化霍尔电阻传递出电容量值的不确定度已达到1～2×10－7，可以基本满足实际工作中交流阻抗单位准确度的需要。

By now , the measurement uncertainty of capacitance traceable to AC quantum Hall resistance has reached the level of 1 ~ 2 × 10 - 7 , meeting the basic practical requirements for the accuracy of AC impedance .

国际计量委员会推荐，1990年1月1日起在世界范围内启用量子化霍尔电阻标准代替使用了几十年的电阻实物基准。

According to the recommendation of CIPM , the Quantum Hall Resistance ( QHR ) standard has been used worldwide since January 1 st of 1990 to replace the traditional resistor standard , which had been maintained for several decades .

运用霍尔效应的原理，在低真空、高温（390～540K）下用直流法测量了该α-Fe2O3压片的霍尔电压与电阻。

The Hall voltage and resistivity of a α - Fe 2O 3 sample in low vacuum were measured at high temperatures ( 390 ~ 540K ) .