便携式医用激光源检定装置的研制及测量不确定度评定

目的：设计研制便携式医用激光源检定装置。方法：该装置设计由毫瓦级激光功率探测器、瓦级激光功率探测器、激光能量探测器、激光功率/能量显示器、激光输出终端锁定装置等5部分组成。3个探测器共用一台显示器以实现便携目的。激光输出终端锁定装置用于固定激光终端和探测器的相对位置,以便于在医疗单位现场开展测量工作。对检定装置进行了性能测试和不确定度评定。结果：研制出便携式医用激光源检定装置1套,3个探测器可测量的激光功率、能量范围分别为0.1～100mW、0.1～150W、0.01～2.0J,在校准波长上的测量不确定度为1.5%、2.6%和3.3%。结论：研制的便携式医用激光源检定装置性能达到了设计指标要求,适合于在医疗单位现场开展检定工作。

Development of Portable Verification Device for Medical Lasers and Measurement Uncertainty Evaluation

Objective To developed a portable verification device for medical laser source.Methods The portable verification device was designed to be composed of a low-power detector,a high power detector,an energy detector,a laser power/energy monitor and a fixing tool.Three detectors were connected to the same monitor for the portable purpose.The fixing tool was used for the fixation between medical laser handpiece and power/energy detector.The performance of this device was tested and the uncertainty of measurement was evaluated.Results A set of portable verification device was developed.The measurable laser power and energy range was 0.1~100 mW,0.1~150 W and 0.01~2.0J respectively,and the respective uncertainty on verification wavelength was 1.5%,2.6% or 3.3%.Conclusion The portable verification device agrees well with demands and is suitable for on-site verification of medical lasers.