Objective In this paper the accessible emission limit (AEL) of medical laser with
apparent source and continuous wave are measured,and the measurement uncertainty is also
evaluated. Methods According to the GB 7247.1—2001(Safety of Laser Products-Part1:Equipment
Classification,Requirements and User’s Guide),this measuring device was designed to be
composed of two parts,a low-power (or a high-power) detector and a fixing tool. The fixing
tool was used for the fixation between medical laser handpiece and power detector. Meanwhile,
the uncertainty of the measurement results was evaluated. ResultsWe measured the AEL,analyzed
the results of laser product’s uncertainty and gave the suggestion on the reduction of the
uncertainty. Conclusions This paper gives reference for other types of medical laser products
,and the advice is given for GB 7247.1—2001 when it will be revised.
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