Title: Determination of misalignment and angular scale errors of a laser tracker using a new geometric model and a multi-target network approach
Authors: Lewis, Andrew
Hughes, Ben
Forbes, Alistair
Sun, Wenjuan
Veal, Dan
Nasr, Karim
Contributors: HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
Pages:16
Language:en
DOI:10.7795/810.20130620S
Resource Type: Text / Report
Publisher: Physikalisch-Technische Bundesanstalt (PTB)
Dates: Available: 2013
Issued: 2013-08
Classifications: OCIS 120.0120 ; OCIS 120.3180 ; OCIS 120.3930 ; OCIS 150.6910 ; PACS 07.60.Ly ; PACS 42.62.-b ; PACS 06.20.-f ; PACS 42.62.Eh ; PACS 07.05.Hd ; PACS 07.05.Tp
File: Download File (application/pdf) 274.91 kB (281503 Bytes)
MD5 Checksum: d0bdb087ec3a7d0af72193c3ad3fe620
SHA256 Checksum: e9f5b1124480a27095164ec98dc203e4b65f75413c154c66b5a46ae88c000685
Keywords: coordinate metrology ; laser tracker ; modelling ; error mapping ; multilateration
Abstract: We report on the determination of laser tracker geometrical alignment and angular scale errors using a new geometric error model
and repeated measurements of a network of fixed targets which are measured using a laser tracker, mounted in five
different locations/orientations. After fitting to the data, we are able to determine geometrical/angular scale errors of
the tracker with sufficient accuracy that a previously un-calibrated tracker can easily pass a standard performance verification
test, after being error-mapped using our technique. Our technique uses no special equipment, takes under one hour and provides rigorous
uncertainty values for the error parameters.
Other: article based on oral presentation at the conference MacroScale 2011 "Recent developments in traceable dimensional measurements",
Bern-Wabern (Switzerland), 04-06, October, 2011
Citation: LEWIS, Andrew, Ben HUGHES, Alistair FORBES, Wenjuan SUN, Dan VEAL, and Karim NASR. Determination of misalignment and angular scale errors of a laser tracker using a new geometric model and a multi-target network approach. Physikalisch-Technische Bundesanstalt (PTB), 2013. doi: 10.7795/810.20130620S
Remark: article based on oral presentation at the conference MacroScale 2011 "Recent developments in traceable dimensional measurements", Bern-Wabern (Switzerland), 04-06, October, 2011