naa a22 4500 510823130 CHVBK 20180411083543.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s12541-013-0051-9 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0051-9 Calibration of angle artifacts and instruments using a high precision angle generator [Elektronische Daten] [Jong-Ahn Kim, Jae Kim, Chu-Shik Kang, Jonghan Jin, Tae Eom] Various angle artifacts and instruments are used in precision engineering, and their calibrations are important to ensure high accuracy and reliability in angle metrology. In this paper, we present uncertainty analysis and calibrations of several angle artifact and instruments to evaluate the performance of the high precision angle generator which is newly developed as the primary angle standard of Korea Research Institute of Standards and Science (KRISS). The configuration of the angle generator is explained shortly, which uses multiple ultrasonic motors and a self-calibratable encoder adopting the equal-division-averaged (EDA) method. The expanded uncertainty (k = 2) of the angle generator, which are mainly contributed by nonlinearity and scale error of a divided circle, was evaluated less than 0.03″. The calibration result of a high precision angle encoder was compatible with that of manufacturer within the expanded uncertainty of calibration, 0.04″. Using the calibration result of an electronic autocollimator, the nonlinearity error of the angle generator was analyzed and a calibration method is proposed to reduce the nonlinearity error related to the signal period of the divided circle. In the calibration of a 36-face optical polygon, we applied the complete closure method to obtain the error of the angle generator separately, and its magnitude was less than 0.015″, which is less than half of the estimated uncertainty of the angle generator. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Angle generator nationallicence Calibration nationallicence Angle artifact nationallicence Angle instrument nationallicence Uncertainty nationallicence Kim Jong-Ahn Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut Kim Jae Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut Kang Chu-Shik Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut Jin Jonghan Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut Eom Tae Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/3(2013-03-01), 367-371 2234-7593 14:3<367 2013 14 12541 https://doi.org/10.1007/s12541-013-0051-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0051-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim Jong-Ahn Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut NATIONALLICENCE 700 1- Kim Jae Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut NATIONALLICENCE 700 1- Kang Chu-Shik Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut NATIONALLICENCE 700 1- Jin Jonghan Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut NATIONALLICENCE 700 1- Eom Tae Center for Length, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, 305-340, Daejeon, Republic of Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/3(2013-03-01), 367-371 2234-7593 14:3<367 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer