Title :
In situ correction of abbe offset error in the watt balance experiment
Author :
Haddad, D. ; Steiner, R. ; Williams, E. ; Liu, R.
Author_Institution :
Nat. Inst. of Stand. & Technol. (NIST), Gaithersburg, MD, USA
Abstract :
The paper describes a technique to simultaneously measure the tilt angles of the induction coil used in the watt balance experiment and correct its position from the Abbe offset error. The same three laser interferometers placed on the induction coil to determine the vertical position are also used for angular measures. An optimization algorithm is tested that allow a better estimation and correction of the Abbe offset error.
Keywords :
error correction; light interferometers; optimisation; wattmeters; Abbe offset error correction; angular measures; in situ correction; induction coil; laser interferometers; optimization algorithm; tilt angles; watt balance experiment; Error correction; Goniometers; Interferometers; Magnetic field measurement; Magnetic flux; NIST; Optical interferometry; Position measurement; Superconducting coils; Testing;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5544638
