Application of a self-compensation mechanism to a rotary-laser scanning measurement system. (17th October 2017)

• Record Type: Journal Article
• Authors: Guo, Siyang; Lin, Jiarui; Ren, Yongjie; Shi, Shendong; Zhu, Jigui
• Is Part Of: Measurement science & technology. Volume 28:Number 11(2017:Nov.)
• Publication Date: 2017-10-17
• Subjects: rotary-laser scanning measuring system -- self-compensation -- inclinometer -- wMPS; Physical measurements -- Periodicals; Scientific apparatus and instruments -- Periodicals; Equipment and Supplies -- Periodicals; Science -- instrumentation -- Periodicals; Technology -- instrumentation -- Periodicals; Mesures physiques -- Périodiques; Physical measurements; Scientific apparatus and instruments; Periodicals; 502.87
• DOI: 10.1088/1361-6501/aa8749
• Languages: English
• ISSNs: 0957-0233

Abstract

Abstract: In harsh environmental conditions, the relative orientations of transmitters of rotary-laser scanning measuring systems are easily influenced by low-frequency vibrations or creep deformation of the support structure. A self-compensation method that counters this problem is presented. This method is based on an improved workshop Measurement Positioning System (wMPS) with inclinometer-combined transmitters. A calibration method for the spatial rotation between the transmitter and inclinometer with an auxiliary horizontal reference frame is presented. It is shown that the calibration accuracy can be improved by a mechanical adjustment using a special bubble level. The orientation-compensation algorithm of the transmitters is described in detail. The feasibility of this compensation mechanism is validated by Monte Carlo simulations and experiments. The mechanism mainly provides a two-degrees-of-freedom attitude compensation.