Source：Scientific Reports

Authors：Takashi Kato、Megumi Uchida、Kaoru Minoshima

Published：2017-06-16

DOI：10.1038/s41598-017-03897-5

Link：https://www.nature.com/articles/s41598-017-03953-w

Core Research Progress

Traditional scanning-based 3D measurement struggles to combine high precision, large range and high-speed detection. This study proposes a no-scanning 3D measurement scheme based on chirped optical frequency combs. Utilizing spectral interferometry, it realizes ultrafast dimensional conversion and single-shot imaging reconstruction. The system supports both microscale detection at 480 μm and high-precision measurement for large objects up to 3 meters, effectively addressing the long-standing trade-off between precision and measurement range in conventional methods.

Technical Application Value

This technology requires no mechanical scanning and features ultrafast imaging, micrometer-level high precision and an ultra-wide dynamic range. It enables multi-scale 3D detection for microstructures, large-sized objects and components with large aspect ratios. Applicable to ultrafast dynamic imaging and industrial precision measurement, it provides strong support for the industrialization of general-purpose high-performance 3D sensing technologies.

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