Video Scanning Hartmann Optical Tester (VSHOT) Uncertainty Analysis: Preprint

Conference · Fri Oct 01 00:00:00 EDT 2010

OSTI ID:991557

Lewandowski, A; Gray, A

This purely analytical work is based primarily on the geometric optics of the system and shows sensitivities to various design and operational parameters. We discuss sources of error with measuring devices, instrument calibrations, and operator measurements for a parabolic trough test. In this paper, we include both the random (precision) and systematic (bias) errors for VSHOT testing and theircontributions to the uncertainty. The contributing factors that we considered in this study are target tilt, target face to laser output distance, instrument vertical offset, scanner tilt, distance between the tool and the test piece, camera calibration, and scanner/calibration.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 991557
• Report Number(s): NREL/CP-5500-49305; TRN: US201021%%200
• Resource Relation: Conference: Presented at SolarPACES 2010, 21-24 September 2010, Perpignan, France
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
ACCURACY
CALIBRATION
CAMERAS
DESIGN
LASERS
OPTICS
TARGETS
TESTING
slope error
optical characterization
mirror testing
parabolic trough