19 May 2006 Development of the laser alignment system with PSD used for shaft calibration
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Shaft calibration is an important technique during installation and maintenance of a rotating machine. It requires unique and high-precision measurement instruments with calculation capability, and relies on experience on heavy, high-speed, or high-temperature machines. A high-precision laser alignment system has been designed using PSD (Position Sensing Detector) to change traditional manual way of shaft calibration and to make the measurement easier and more accurate. The system is comprised of two small measuring units (Laser transmitter and detector) and a hand operated control unit or a PC. Such a laser alignment system has been used in some actual shaft alignment with offset resolution 1.5μm and angular resolution 0.1°.
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Guohua Jiao, Guohua Jiao, Yulin Li, Yulin Li, Baowen Hu, Baowen Hu, "Development of the laser alignment system with PSD used for shaft calibration", Proc. SPIE 6150, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 61500H (19 May 2006); doi: 10.1117/12.676890; https://doi.org/10.1117/12.676890

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