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采用光栅光谱仪 对脉冲光纤激光修锐青铜金刚石砂轮过程中产生的等离子体空间分辨发射光谱进行了测量. 研究了500–600 nm波段范围内的等离子体空间发射光谱强度随激光平均功率和脉冲重复频率的变化情况. 结果表明: 等离子体辐射光谱强度在其径向膨胀方向上距离砂轮表面约2.4 mm处达到最大值. 在局部热力学平衡假设条件下, 根据等离子体中六条铜原子谱线的相对强度, 利用Boltzmann 图法, 计算得到在不同激光功率和重复频 率条件下的等离子体电子温度沿砂轮径向方向的分布规律. 实验结果表明: 在激光修锐青铜金刚石砂轮过程中, 距离砂轮表面约3 mm处等离子体电子温度出现峰值, 其温度最高可达4380 K, 且等离子体电子温度随着激光参数和 空间位置的改变呈现出不同的演变规律.In this paper, we present the optical emission studies of the spatial evolution of plasma during pulsed fiber laser dressing of bronze-bonded diamond grinding wheel and especially investigate the plasma light emission, which is measured through a high sensible optical spectrometer. Space-resolved spectra in a wavelength range of 500-600 nm are measured at different laser average powers and pulse repetition frequencies, and the intensity of spectral lines achieves a maximum intensity at about 2.4 mm away from the surface of the grinding wheel. The electron temperature is determined by employing the Boltzmann plot method under the assumption of local thermodynamic equilibrium using six Cu (I) lines, and the highest electronic temperature is calculated to be 4380 K at about 3 mm away from the surface of wheel. Finally the effect of the laser parameters on the electron temperature of the plasma is studied, and the results show that there are different variation laws in the electron temperature of the plasma with laser average power and pulse repetition frequency.
[1] Babu N R, Radhakrishnan V 1989 J. Manuf. Sci. E-T. Asme. 111 244
[2] Babu N R, Radhakrishnan V 1989 J. Manuf. Sci. E-T. Asme. 111 253
[3] Dold C, Transchel R, Rabiey M, Langenstein P, Jacger C, Pude F, Kuster F, Wegener K 2011 Cirp Ann-Manuf. Techn. 60 363
[4] Chen G Y, Mei L F, Zhang B, Yu C R, Shun K J 2010 Opt. Laser Eng. 48 295
[5] Rabiey M, Walter C, Kuster F, Stirnimann J, Pude F, Wegener K 2012 Stroj. Vestn-J. Mech. E 58 462
[6] Noll R 2012 Laser-Induced Breakdown Spectroscopy Fundamentals and Applications (1st Ed.) (New York: Springer-Verlag) p170
[7] Xin R X 2011 Plasma Emission Spectrum Analysis (2nd Ed.) (Beijing: Chemical Industry Press) p18 (in Chinese) [辛仁轩 2011 等离子体发射光谱分析(第2版) (北京:化学工业出版社) 第18页]
[8] Shaikh N M, Hafeez S, Rashid B, Mahmood S, Baig M A 2006 J. Phys. D: Appl. Phys. 39 1384
[9] Liu Y H, Chen M, Liu X D, Cui Q Q, Zhao M W 2013 Acta Phys. Sin. 62 025203 (in Chinese) [刘月华, 陈明, 刘向东, 崔清强, 赵明文 2013 62 025203]
[10] Drogoff B L, Margot J, Chaker M, Sabsabi M, Barthelemy O, Johnston T W, Laville S, Vidal F, Kaenel V 2001 Spectrochim. Acta B 56 987
[11] Shaikh N M, Hafeez S, Kalyar M A, Ali R, Baig M A 2008 J. Appl. Phys. 104 103108
[12] Liu S B, Liu Y S, He R, Chen T 2010 Acta Phys. Sin. 59 5382 ( in Chinese) [刘世炳, 刘院省, 何润, 陈涛 2010 59 5382]
[13] Walter C, Rabiey M, Warhanek M, Warhanek M, Jochum N 2012 Cirp Ann-Manuf. Techn. 61 363
[14] Gao X, Song X W, Guo K M, Tao H Y, Lin J Q 2011 Acta Phys. Sin. 60 025203 (in Chinese) [高勋,宋晓伟,郭凯敏,陶海岩,林景全 2011 60 025203]
[15] Sun C W 2002 Laser Radiation Effect (1st Ed.) (Beijing: National Defence Industry Press) p93 (in Chinese) [孙承纬 2002 激光辐照效应 (第1版) (北京: 国防工业出版社) 第93页]
[16] Milan M, Laserna J J 2001 Spectrochim. Acta Part B 56 275
[17] Zhou X T, Li Y, Wang J D, Huang Z H 2001 IEEE T. Plasma Sci. 29 360
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[1] Babu N R, Radhakrishnan V 1989 J. Manuf. Sci. E-T. Asme. 111 244
[2] Babu N R, Radhakrishnan V 1989 J. Manuf. Sci. E-T. Asme. 111 253
[3] Dold C, Transchel R, Rabiey M, Langenstein P, Jacger C, Pude F, Kuster F, Wegener K 2011 Cirp Ann-Manuf. Techn. 60 363
[4] Chen G Y, Mei L F, Zhang B, Yu C R, Shun K J 2010 Opt. Laser Eng. 48 295
[5] Rabiey M, Walter C, Kuster F, Stirnimann J, Pude F, Wegener K 2012 Stroj. Vestn-J. Mech. E 58 462
[6] Noll R 2012 Laser-Induced Breakdown Spectroscopy Fundamentals and Applications (1st Ed.) (New York: Springer-Verlag) p170
[7] Xin R X 2011 Plasma Emission Spectrum Analysis (2nd Ed.) (Beijing: Chemical Industry Press) p18 (in Chinese) [辛仁轩 2011 等离子体发射光谱分析(第2版) (北京:化学工业出版社) 第18页]
[8] Shaikh N M, Hafeez S, Rashid B, Mahmood S, Baig M A 2006 J. Phys. D: Appl. Phys. 39 1384
[9] Liu Y H, Chen M, Liu X D, Cui Q Q, Zhao M W 2013 Acta Phys. Sin. 62 025203 (in Chinese) [刘月华, 陈明, 刘向东, 崔清强, 赵明文 2013 62 025203]
[10] Drogoff B L, Margot J, Chaker M, Sabsabi M, Barthelemy O, Johnston T W, Laville S, Vidal F, Kaenel V 2001 Spectrochim. Acta B 56 987
[11] Shaikh N M, Hafeez S, Kalyar M A, Ali R, Baig M A 2008 J. Appl. Phys. 104 103108
[12] Liu S B, Liu Y S, He R, Chen T 2010 Acta Phys. Sin. 59 5382 ( in Chinese) [刘世炳, 刘院省, 何润, 陈涛 2010 59 5382]
[13] Walter C, Rabiey M, Warhanek M, Warhanek M, Jochum N 2012 Cirp Ann-Manuf. Techn. 61 363
[14] Gao X, Song X W, Guo K M, Tao H Y, Lin J Q 2011 Acta Phys. Sin. 60 025203 (in Chinese) [高勋,宋晓伟,郭凯敏,陶海岩,林景全 2011 60 025203]
[15] Sun C W 2002 Laser Radiation Effect (1st Ed.) (Beijing: National Defence Industry Press) p93 (in Chinese) [孙承纬 2002 激光辐照效应 (第1版) (北京: 国防工业出版社) 第93页]
[16] Milan M, Laserna J J 2001 Spectrochim. Acta Part B 56 275
[17] Zhou X T, Li Y, Wang J D, Huang Z H 2001 IEEE T. Plasma Sci. 29 360
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