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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 9 — Oct. 2, 2013

High-dynamic angle measurement based on laser displacement sensors

Junhua Sun, Jie Zhang, Zhen Liu, and Guangjun Zhang  »View Author Affiliations


Applied Optics, Vol. 52, Issue 23, pp. 5676-5685 (2013)
http://dx.doi.org/10.1364/AO.52.005676


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Abstract

It is currently difficult to achieve good real-time dynamic angle measurements with high accuracy and large ranges. In this paper, a photoelectric measurement method for dynamic angles based on three laser displacement sensors (LDSs) is proposed. Offline, a dynamic angle vision measurement model is established, and the system is calibrated by using a planar target moved by a 2D moving platform. In the course of measurement, three laser beams emitted from three LDSs are projected onto a rotating plane, and three noncollinear points are acquired synchronously; then the rotation angle is calculated in real time. Simulations verify the feasibility of the method theoretically. Experimental results demonstrate that the method achieves measurement accuracies of 0.008° and 0.046° under quasi-static condition of 80°/s and highly dynamic condition of 1000°/s within the measurement range of about ±40°, respectively.

© 2013 Optical Society of America

OCIS Codes
(280.3420) Remote sensing and sensors : Laser sensors
(330.4060) Vision, color, and visual optics : Vision modeling
(150.0155) Machine vision : Machine vision optics
(150.1488) Machine vision : Calibration

ToC Category:
Machine Vision

History
Original Manuscript: May 29, 2013
Revised Manuscript: July 1, 2013
Manuscript Accepted: July 1, 2013
Published: August 6, 2013

Virtual Issues
Vol. 8, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Junhua Sun, Jie Zhang, Zhen Liu, and Guangjun Zhang, "High-dynamic angle measurement based on laser displacement sensors," Appl. Opt. 52, 5676-5685 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-23-5676

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Supplementary Material


» Media 1: MOV (4083 KB)     
» Media 2: MOV (4083 KB)     

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