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Updated: Jan 13, 2026

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
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用于检测子波长横向移位的元装置.

Shufan Chen1, Yubin Fan2, Hao Li3

  • 1Department of Electrical Engineering and State Key Laboratory of Optical Quantum Materials, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China.

Light, science & applications
|January 11, 2026
PubMed
概括

我们开发了一种新的二光子状态横移测量方法,用于石版. 这种技术通过显著减少检测到的光子实现了同等的精度,提高了测量速度和适用于半导体制造的适用性.

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Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
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