多光谱高温计有效波长标定方法研究

针对光纤式多光谱高温计波长标定中由于光纤耦合导致信号太弱而无法获得有效波长的问题，基于普朗克定律，充分结合不同标定温度点的标定值的比值，提出了一种由温度标定数据来确定有效波长的方法。相比于传统的有效波长标定方法，新方法避免了耗时复杂的波长标定过程可以快速获取有效波长。分别采用仿真和实验两种手段来验证新方法的可行性和有效性。仿真结果表明所提出的新方法可行并且具有一定的抗随机误差能力，所得有效波长计算的真温值与实际值的相对误差小于0.7%。实验结果表明提出的新方法能够得到各个通道的有效波长值，进一步验证了该方法的有效性。所提出的新方法也可应用于其他多光谱高温计，为多光谱高温计的研制和应用提供了理论基础。

Study on Effective Wavelength Calibration Method of Multispectral Pyrometer

For the problem that the effective wavelength cannot be obtained because the signal is too weak due to fiber coupling during wavelength calibration of optical fiber multi-spectral pyrometer,a new effective wavelength determination method is proposed based on the data of temperature calibration.Based on the Planck's law,a new method for solving the wavelength is presented,combining with the calibration value ratios of different calibration temperature points.Compared with the traditional method of effective wavelength calibration,the new method proposed in this paper not only provides a new way to get the effective wavelength fast,but also avoids the complexity of the wavelength calibration process.Simulation and experiment were used in this paper to verify the feasibility and effectiveness of the new method.The simulation results showed that the new method which was feasible to get the effective wavelength had the anti-random error ability,and the relative error between the true temperature calculation value based on the effective wavelength and the actual value was less than 0.7％.The experimental results showed that the new method could get the effective wavelength of each channel,and further verify the effectiveness of the proposed method.The new method proposed in this paper can also be applied to other multi-spectral pyrometer,providing a theoretical basis for the development and application of the multi-spectral pyrometer.