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1. 发明申请

US20150088448A1 CALIBRATION METHOD AND DISTANCE MEASUREMENT DEVICE THEREOF BASED ON PHASE MEASUREMENT OF DOUBLE-WAVELENGTH LASER TUBE 审中-公开
标题翻译：基于双波长激光管的相位测量的校准方法和距离测量装置
公开(公告)号：US20150088448A1
公开(公告)日：2015-03-26
申请号：US14378066
申请日：2012-03-31
申请人： Xin Du , Baiwen Qiao , Xiaoyi Zha
发明人： Xin Du , Baiwen Qiao , Xiaoyi Zha
IPC分类号： G01B11/14
CPC分类号： G01B11/14 , G01C3/08 , G01S7/4911 , G01S7/497 , G01S17/36
摘要： The invention is applicable to the field of phase type photoelectric distance measurement and provides a calibration method based on phase measurement of a double-wavelength laser tube and a distance measurement device of the double-wavelength laser tube. The method comprises the following steps of: 1, forming an external optical path; 2, forming an internal optical path; and 3, sequentially switching a first light-wave and a second light-wave of light-wave transmitting devices (1 and 2) during operation of the steps 1 and 2 to compare phases of the sequentially-received light-waves of the internal and external optical paths through a receiving device (7), and outputting a phase signal for eliminating a base reference. By the method, aims of phase compensation and calibration are fulfilled, uncertain phase noise which is introduced into a circuit due to environmental change is eliminated, the distance measurement accuracy of laser is improved, the influence of environmental factors on a distance measurement error is reduced, the cost of a system is reduced, and application of a phase type photoelectric distance measurement system in various industries is enhanced.
摘要翻译：本发明适用于相位光电距离测量领域，并提供了基于双波长激光管的相位测量和双波长激光管的距离测量装置的校准方法。该方法包括以下步骤：1，形成外部光路; 2，形成内部光路; 以及3，在步骤1和2的操作期间顺序地切换光波发射装置（1和2）的第一光波和第二光波，以比较内部和...的顺序接收的光波的相位通过接收装置（7）的外部光路，并输出用于消除基准参考的相位信号。通过该方法，实现了相位补偿和校准的目的，消除了由于环境变化引入到电路中的不确定相位噪声，提高了激光的距离测量精度，降低了环境因素对距离测量误差的影响降低了系统的成本，提高了各行业的相位光电测距系统的应用。

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