Abstract

The ice core from polar ice sheet is one of the most valuable archives of past climate and environment. The ice core visual stratigraphy, based on optical scanning analysis, provides the most intuitive information of the micro-particles and/or air bubbles in the ice. At present, only few labs can perform high quality visual stratigraphy analysis in the world. Here, we develop an ice core slice scanning tool based on line-scan camera. The machine uses the high-resolution characteristics of the line-scan camera to complete high-resolution imaging of the ice core slices through linkage with the linear light sources. A motor drive and control system is developed to complete the uniform scanning control of the line-scan camera and light sources. A special control program and human-computer interaction interface are developed to realize the parameter setting, motor control and imaging result display. The test results show that the proposed ice core slice scanning tool meets the design requirements and its imaging results are significantly better than area-scan cameras under the same conditions.

Highlights

  •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

  • 6WHSSHU PRWRUQ )LJXUH DFFRUGLQJ WR WKH GHVLJQ UHTXLUHPHQWV WKH OLQH VFDQ FDPHUD XVHV WKH 0DUV *LJDELW

  • LQGXVWULDO FDPHUD RI 9LVLRQ 'DWXP ZKLFK FDQ DFKLHYH SPP 03 UHVROXWLRQ ZLWK D VSHFLDO OHQV 7KH LPDJH FDSWXUH FDUG XVHV WKH *LJ( LQWHUIDFH FDSWXUH FDUG WKDW LV FRPSDWLEOH ZLWK WKH FDPHUD IURP 9LVLRQ 'DWXP 7KH OLQHDU OLJKW VRXUFH DGRSWV FRPPHUFLDO DGMXVWDEOH OLQHDU /(' OLJKW VRXUFH ZLWK /LJKW 6KDSLQJ 'LIIXVHU /6' ILOP 7KH GLIIXVLRQ HIIHFW RI WKH /6' ILOP PDNHV WKH OLJKW.

Read more

Summary

6WUXFWXUH RI WKH SURSRVHG LFH FRUH VOLFH VFDQQLQJ WRRO

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

6WHSSHU PRWRU
ΘϬs ƚŽ ρϮs
ĂƚĂ ƉƌŽĐĞƐƐŝŶŐ ĂŶĚ ĚŝƐƉůĂLJ
6FDQQLQJ LPDJLQJ WHVW
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call