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计量学报  2012, Vol. 33 Issue (4): 313-316    DOI: 10.3969/j.issn.1000-1158.2012.04.06
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半光斑成像式多功能激光瞄准测头的研究
朱凌建1,2,谭宇1,邱宗明1,刘君华2
1.西安理工大学, 陕西 西安 710048
2.西安交通大学, 陕西 西安 710049
Study on Multifunctional Laser Aiming Detector Based on Half Facular Point Optical Imagery
ZHU Ling-jian1,2,TAN Yu1,QIU Zong-ming 1,LIU Jun-hua2
1. Xi′an University of Technology, Xi′an, Shaanxi  710048, China
2. Xi′an Jiaotong University, Xi′an, Shaanxi  710049, China
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摘要 运用半光斑成像原理设计了一种用于三坐标测量机的多功能激光瞄准测头。详细介绍了测头的光学系统工作原理和设计思路,采用自适应控制方法实时调节激光光强使其可以适应不同光学特性表面的瞄准测量,并进行了多功能测头的重复性瞄准测量、灵敏度测量、倾角跟踪实验。实验结果表明,该测头重复性瞄准测量不确定度优于1 μm,测量灵敏度可达30 mV/μm,激光跟踪瞄准被测曲面倾角可达25°,能满足三坐标测量机的使用要求。该测头具有检测速度快、自动化程度高、瞄准精度高的特点,结合三坐标测量机或者其它测长仪器,能够实现对自由曲面进行快速精确瞄准及轮廓图像瞄准测量,具有广泛的应用前景和实用价值。
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朱凌建
谭宇
邱宗明
刘君华
关键词 计量学半光斑成像激光瞄准多功能测头三坐标测量机    
Abstract:A multifunctional laser aiming detector applied on coordinate measurement machines was designed based on half facular point optical imagery.The designing thought and operation principle of the multifunctional aiming detector optical system was described in detail.An adaptive intensity control method was used in the circuit to adjust the laser intensity timely so that it can adapt to aiming measurement of different optical properties surface.Repeated aiming measurement experiments, linear sensitivity aiming measurement experiments and inclination tracking measurement experiments of the multifunctional detector were conducted in practice.The experimental results show that the measurement uncertainty of laser tracking aiming repeatability of the multifunctional detector is less than 1 μm with the measurement sensitivity of 30 mV/μm after calibration.The angle measure scale of laser tracking aiming is expected to 25° without any other accessorial equipment, which can be met the requirements of CMMs.This detector with characteristic of high detecting speed, high degree of automation and high aiming accuracy, will be expected to have the ability of free curved surface and imagery tracking aiming measurement of contour with higher speed and accuracy coincided with CMMs or other length measuring instruments and have a wide range of application prospects and a strong practical value for measuring parts profile with a higher precision.
Key wordsMetrology    Half facular point optical imagery    Laser aiming    Multifunctional detector    Coordinate measurement machines (CMMs)
    
PACS:  TB92  
基金资助:陕西省教育厅自然科学基金资助项目(09JK684);陕西省教育厅产业化项目(2010JC17)
作者简介: 朱凌建(1978-),男,浙江遂昌人,西安理工大学讲师,硕士,主要从事计量测试技术及仪器研究,zlj_zhy@xaut.edu.cn
引用本文:   
朱凌建,谭宇,邱宗明,刘君华. 半光斑成像式多功能激光瞄准测头的研究[J]. 计量学报, 2012, 33(4): 313-316.
ZHU Ling-jian,TAN Yu,QIU Zong-ming,LIU Jun-hua. Study on Multifunctional Laser Aiming Detector Based on Half Facular Point Optical Imagery. Acta Metrologica Sinica, 2012, 33(4): 313-316.
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http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2012.04.06     或     http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2012/V33/I4/313
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