摘要
在激光三角位移测量中,为了减少由被测物体表面的反射特性以及测量环境的光干扰对测量的影响,提高测量精度,提出了一种新的图像传感器成像参量的自适应控制方法。推导了图像传感器的成像参量,详细地分析了这些参量对位移测量精度的影响,在理论分析的基础上提出了该方法,并通过实验的方法加以验证。结果表明,该方法能够根据外界环境变化自适应调整成像参量,有效地减小环境的干扰,提高位移测量的精度。
The reflection characteristics of the measured objects and the obtrusive light of the environment will have strong impacts on the accuracy of laser triangulation displacement measurement. In order to reduce the impact, a new imaging parameters adaptive control methods was proposed. The imaging parameters of an image sensor were described and the effect of these parameters on the accuracy of measurement was analyzed. Then an idea of improving the accuracy was put forward by parameters adjustment. The experimental results show that this method can adaptively adjust the parameters based on the environment, effectively reduce the environment interference and ultimately improve the displacement measurement accuracy.
出处
《激光技术》
CAS
CSCD
北大核心
2010年第5期628-631,共4页
Laser Technology
关键词
测量与计量
自适应控制
光学三角原理
成像参量
精度
measurement and metrology
adaptive control
principle of optical triangulation
imaging parameter
accuracy
