Development of a high-accuracy multi-sensor, multi-target coordinate metrology system using frequency scanning interferometry and multilateration

B. Hughes; M. A. Campbell; A. J. Lewis; G. M. Lazzarini; N. Kay

doi:10.1117/12.2273644

26 June 2017 Development of a high-accuracy multi-sensor, multi-target coordinate metrology system using frequency scanning interferometry and multilateration

B. Hughes, M. A. Campbell, A. J. Lewis, G. M. Lazzarini, N. Kay

Author Affiliations +

Proceedings Volume 10332, Videometrics, Range Imaging, and Applications XIV; 1033202 (2017) https://doi.org/10.1117/12.2273644
Event: SPIE Optical Metrology, 2017, Munich, Germany

Abstract

We present a novel coordinate measurement system based on a combination of frequency scanning interferometry and multilateration. The system comprises a number of sensors (minimum of four) that surround the measurement volume. Spherical glass retro-reflectors act as targets that are used to define the points in space to be measured. The sensors all measure the absolute distance to all targets simultaneously. The resulting distances are then used to compute the coordinates of the targets and other systematic parameters such as the sensor locations. Initial experimental comparison with a commercial laser tracker has shown that the proposed system is capable of achieving coordinate uncertainties of the order of 40 μm in a measurement volume of 10 m × 5 m × 2.5 m. The system is self-calibrating, inherently traceable to the international system of units (the SI) and computes rigorous coordinate uncertainty estimates.

Citation Download Citation

B. Hughes, M. A. Campbell, A. J. Lewis, G. M. Lazzarini, and N. Kay "Development of a high-accuracy multi-sensor, multi-target coordinate metrology system using frequency scanning interferometry and multilateration", Proc. SPIE 10332, Videometrics, Range Imaging, and Applications XIV, 1033202 (26 June 2017); https://doi.org/10.1117/12.2273644

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available