TY - GEN
T1 - An off-axis optical system design applied in the precision measurement of axle hole's inner diameter
AU - Xie, Hongbo
AU - Li, Fulin
AU - Li, Tao
AU - Yang, Tong
PY - 2011
Y1 - 2011
N2 - Optical non-contact measurement has many advantages, which has been widely used in the precise size measurement. Since the precision axle hole's inner diameter is small, the measuring axis optical system cannot be placed into the axle hole. As a result, the optical non-contact measurement is difficult to be applied in the occasion above. In this paper, a set of optical system based on off-axis imaging principle that applied to small axle hole's inner diameter measurement is designed. According to the Scheimpflug principle, the relationship of object plane tilt and image plane tilt is derived in this paper. To meet the requirement of measurement accuracy, an off-axis imaging system with a suitable magnification is presented. The off-axis imaging optical system cooperating with the fiber collimator and the PSD can attain 2μm measurement accuracy.
AB - Optical non-contact measurement has many advantages, which has been widely used in the precise size measurement. Since the precision axle hole's inner diameter is small, the measuring axis optical system cannot be placed into the axle hole. As a result, the optical non-contact measurement is difficult to be applied in the occasion above. In this paper, a set of optical system based on off-axis imaging principle that applied to small axle hole's inner diameter measurement is designed. According to the Scheimpflug principle, the relationship of object plane tilt and image plane tilt is derived in this paper. To meet the requirement of measurement accuracy, an off-axis imaging system with a suitable magnification is presented. The off-axis imaging optical system cooperating with the fiber collimator and the PSD can attain 2μm measurement accuracy.
KW - Axle hole's inner diameter
KW - Off-axis
KW - Optical system
KW - Precision measurement
UR - http://www.scopus.com/inward/record.url?scp=84862965147&partnerID=8YFLogxK
U2 - 10.1117/12.907344
DO - 10.1117/12.907344
M3 - Conference contribution
AN - SCOPUS:84862965147
SN - 9780819488381
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 2011 International Conference on Optical Instruments and Technology
T2 - 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Y2 - 6 November 2011 through 9 November 2011
ER -