NIST PROPOSES NEW DEFINITION FOR OPTICAL WATT

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NIST PROPOSES NEW DEFINITION FOR OPTICAL WATT

机译：NIST提出了光瓦特的新定义

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Researchers at the National Institute of Standards and Technology (NIST) seek to develop a more precise definition for the standard unit of light power, the optical watt. Instead of the current definition, which is based on comparisons to electrical heating, the NIST study suggests that the optical watt could be determined from light's radiation force and speed. "We are pursuing research to enable the radiation pressure approach to make the most accurate measurement of laser power in the world," physicist Paul Williams said.

机译：国家标准与技术研究所（NIST）的研究人员寻求为光线标准单位开发更精确的定义，光瓦。不是目前的定义，该定义是基于对电加热的比较，而是NIST研究表明光学瓦特可以从光的辐射力和速度确定。 “我们正在追求研究，使辐射压力方法能够在世界上最准确地测量激光力量，”物理学家保罗·威廉姆斯说。

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《Lighting》 |2020年第5期|37-37|共1页
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3. First Measurements of the Flux Integral With the NIST-4 Watt Balance [J] . Haddad Darine, Seifert Frank, Chao Leon, Instrumentation and Measurement, IEEE Transactions on . 2015,第6期

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4. Low noise programmable current source for the NIST-3 and NIST-4 watt balance [C] . Haddad D., Waltrip B., Steiner R.L. Precision Electromagnetic Measurements (CPEM), 2012 Conference on . 2012

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6. Hysteresis and Related Error Mechanisms in the NIST Watt Balance Experiment [O] . Joshua P. Schwarz, Ruimin Liu, David B. Newell, 2001

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NIST PROPOSES NEW DEFINITION FOR OPTICAL WATT

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