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Shape Measurement of Large Structures in Space: Experiments

Talon, Thibaud and Pellegrino, Sergio (2018) Shape Measurement of Large Structures in Space: Experiments. In: 2018 5th IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace). IEEE , Piscataway, NJ, pp. 581-584. ISBN 978-1-5386-2474-6. http://resolver.caltech.edu/CaltechAUTHORS:20180906-143935251

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Abstract

A method to reconstruct the shape of a large planar structure in space is introduced and demonstrated through a lab-scale experiment. Lightweight sun sensors are distributed on the structure to measure local angles relative to the sun. The methodology to integrate the measured angles into the shape of the structure, based on a decomposition of the shape into basis functions is introduced. This methodology has been implemented on a lab-scale experiment. The design of the sensors is based on a 4 pixel pinhole camera. The calibration method for these sensors is presented as well as the techniques to integrate and communicate with them. A 1.2 m by 20 cm structure was designed and populated with sensors to show the performance of an integrated system. Preliminary results show an accuracy of 1 mm RMS on the shape reconstruction of this structure.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/MetroAeroSpace.2018.8453578DOIArticle
https://ieeexplore.ieee.org/document/8453578PublisherArticle
ORCID:
AuthorORCID
Pellegrino, Sergio0000-0001-9373-3278
Additional Information:© 2018 IEEE. This research is supported by the Northrop Grumman Corporation and the Space Solar Power Project at Caltech.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Northrop Grumman CorporationUNSPECIFIED
Space Solar Power ProjectUNSPECIFIED
Subject Keywords:sun, sensor, shape, reconstruction, measurement, structure, solar, sail, antenna array, laboratory, experiment
Record Number:CaltechAUTHORS:20180906-143935251
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180906-143935251
Official Citation:T. Talon and S. Pellegrino, "Shape Measurement of Large Structures in Space: Experiments," 2018 5th IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace), Rome, Italy, 2018, pp. 581-584. doi: 10.1109/MetroAeroSpace.2018.8453578
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89429
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:06 Sep 2018 23:57
Last Modified:06 Sep 2018 23:57

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