激光防护镜自动检定装置测量不确定度的评定

Measurement Uncertainty Evaluation of Automatic Verification Device for Laser Protective Spectacles

目的:为了表征所研制的激光防护镜自动检定装置的性能及其实用性和可靠性,对该检定装置进行性能测试和测量不确定度评定。方法:采用分束实时监视测量方法,对检定装置的测量重复性、不同激光照射条件下的激光防护镜光密度和损伤阈值等多项性能参数进行测试,研究和建立激光防护镜防护性能参数测量模块,为防护镜的防护性能评价提供实验技术平台,并为检定装置测量不确定度的评定提供数据和依据。结果:该检定装置的输出激光波长为1064nm和532nm,波长响应范围为0.4～1.1μm,测量能量范围为10-8～0.3J,激光防护镜光密度测量范围为0.1～8.0,测量重复性为0.37%,测量不确定度为5%(k=2)。结论:该检定装置性能稳定可靠,技术指标达到设计和使用要求。

Objective To test and evaluate measurement uncertainty and relational performance parameters of the verification device for laser protective spectacles. Methods By using reahime beam-splitting surveillance, several performance parameters, including the measurement repeatability of the verification device, optical density of laser protective spectacles in different laser exposure conditions and its damage threshold, were tested. The measurement modules of the main performance parameters were built up as the experiment ＆ technology platform for performance evaluation of laser protective spectacles and for measurement uncertainty appraisal of verification device. Results Laser wavelengths of the verification device were 1064nm and 532nm, response range of wavelength was from 0.4μm to 1.1μm, measuring range of laser energy was from 10-8J to 0.3J, measuring range of optical density for laser protective spectacles was from 0.1 to 8.0, measuring repeatability was 0.37%, and measuring uncertainty was 5% （k =2）. Conclusion The automatic verification device is steady and reliable. The achieved performance indexes accord with the designed requirement for laser protection.