This report presents the results of testing of the Metris iGPS system performed by the National Physical Laboratory (NPL) and the University of Bath (UoB), with the assistance of Metris, and Airbus at Airbus, Broughton in March 2008. The aim of the test was to determine the performance capability of the iGPS coordinate metrology system by comparison with a reference measurement system based on multilateration implemented using laser trackers. A network of reference points was created using SMR nests fixed to the ground and above ground level on various stands. The reference points were spread out within the measurement volume of approximately 10 m ´ 10 m ´ 2 m. The coordinates of each reference point were determined by the laser tracker survey using multilateration. The expanded uncertainty (k=2) in the relative position of these reference coordinates was estimated to be of the order of 10 µm in x, y and z. A comparison between the iGPS system and the reference system showed that for the test setup, the iGPS system was able to determine lengths up to 12 m with an uncertainty of 170 µm (k=2) and coordinates with an uncertainty of 120 µm in x and y and 190 µm in z (k=2).
| Original language | English |
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| Number of pages | 35 |
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| Publication status | Published - Feb 2010 |
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| Name | NPL Report |
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| Publisher | National Physical Laboratory |
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| Volume | 23 |
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| ISSN (Print) | 1754-2987 |
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© Queen’s Copyright Printer and Controller of HMSO, 2010
Cite this
Hughes, E. B., Forbes, A. B., Sun, W., Maropoulos, P. G., Muelaner, J. E., Jamshidi, J., & Wang, Z. (2010).
iGPS capability study. (NPL Report; Vol. 23).
Hughes, E.B. ; Forbes, A.B. ; Sun, W. ; Maropoulos, P.G. ; Muelaner, J.E. ; Jamshidi, J. ; Wang, Z. /
iGPS capability study. 2010. 35 p. (NPL Report).
@book{0ca58ad7998c405c8642466e888e3f59,
title = "iGPS capability study",
abstract = "This report presents the results of testing of the Metris iGPS system performed by the National Physical Laboratory (NPL) and the University of Bath (UoB), with the assistance of Metris, and Airbus at Airbus, Broughton in March 2008. The aim of the test was to determine the performance capability of the iGPS coordinate metrology system by comparison with a reference measurement system based on multilateration implemented using laser trackers. A network of reference points was created using SMR nests fixed to the ground and above ground level on various stands. The reference points were spread out within the measurement volume of approximately 10 m ´ 10 m ´ 2 m. The coordinates of each reference point were determined by the laser tracker survey using multilateration. The expanded uncertainty (k=2) in the relative position of these reference coordinates was estimated to be of the order of 10 µm in x, y and z. A comparison between the iGPS system and the reference system showed that for the test setup, the iGPS system was able to determine lengths up to 12 m with an uncertainty of 170 µm (k=2) and coordinates with an uncertainty of 120 µm in x and y and 190 µm in z (k=2).",
author = "E.B. Hughes and A.B. Forbes and W. Sun and P.G. Maropoulos and J.E. Muelaner and J. Jamshidi and Z. Wang",
note = "{\circledC} Queen’s Copyright Printer and Controller of HMSO, 2010",
year = "2010",
month = "2",
language = "English",
series = "NPL Report",
publisher = "National Physical Laboratory",
}
Hughes, EB, Forbes, AB, Sun, W, Maropoulos, PG, Muelaner, JE, Jamshidi, J & Wang, Z 2010,
iGPS capability study. NPL Report, vol. 23.
iGPS capability study. / Hughes, E.B.; Forbes, A.B.; Sun, W.; Maropoulos, P.G.; Muelaner, J.E.; Jamshidi, J.; Wang, Z.
2010. 35 p. (NPL Report; Vol. 23).
Research output: Book/Report › Commissioned report
TY - BOOK
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AU - Hughes, E.B.
AU - Forbes, A.B.
AU - Sun, W.
AU - Maropoulos, P.G.
AU - Muelaner, J.E.
AU - Jamshidi, J.
AU - Wang, Z.
N1 - © Queen’s Copyright Printer and Controller of HMSO, 2010
PY - 2010/2
Y1 - 2010/2
N2 - This report presents the results of testing of the Metris iGPS system performed by the National Physical Laboratory (NPL) and the University of Bath (UoB), with the assistance of Metris, and Airbus at Airbus, Broughton in March 2008. The aim of the test was to determine the performance capability of the iGPS coordinate metrology system by comparison with a reference measurement system based on multilateration implemented using laser trackers. A network of reference points was created using SMR nests fixed to the ground and above ground level on various stands. The reference points were spread out within the measurement volume of approximately 10 m ´ 10 m ´ 2 m. The coordinates of each reference point were determined by the laser tracker survey using multilateration. The expanded uncertainty (k=2) in the relative position of these reference coordinates was estimated to be of the order of 10 µm in x, y and z. A comparison between the iGPS system and the reference system showed that for the test setup, the iGPS system was able to determine lengths up to 12 m with an uncertainty of 170 µm (k=2) and coordinates with an uncertainty of 120 µm in x and y and 190 µm in z (k=2).
AB - This report presents the results of testing of the Metris iGPS system performed by the National Physical Laboratory (NPL) and the University of Bath (UoB), with the assistance of Metris, and Airbus at Airbus, Broughton in March 2008. The aim of the test was to determine the performance capability of the iGPS coordinate metrology system by comparison with a reference measurement system based on multilateration implemented using laser trackers. A network of reference points was created using SMR nests fixed to the ground and above ground level on various stands. The reference points were spread out within the measurement volume of approximately 10 m ´ 10 m ´ 2 m. The coordinates of each reference point were determined by the laser tracker survey using multilateration. The expanded uncertainty (k=2) in the relative position of these reference coordinates was estimated to be of the order of 10 µm in x, y and z. A comparison between the iGPS system and the reference system showed that for the test setup, the iGPS system was able to determine lengths up to 12 m with an uncertainty of 170 µm (k=2) and coordinates with an uncertainty of 120 µm in x and y and 190 µm in z (k=2).
M3 - Commissioned report
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Hughes EB, Forbes AB, Sun W, Maropoulos PG, Muelaner JE, Jamshidi J et al.
iGPS capability study. 2010. 35 p. (NPL Report).