灰分測定儀產品及廠家
sg-bd－ⅱ－118型閃光融合頻率計又稱亮點閃爍儀，其可以測量閃光融合臨界頻率，確定辨別閃光能力的水平，即視覺時間的視敏度。還可以檢驗閃光的色調、強度、亮黑比以及背景光的強度發生變化時對閃光融合臨界頻率的影響。視敏度是眼睛的一種基本功能，可作為視覺疲勞及精神疲勞的一種指標。測定人的閃光融合頻率是測量人體疲勞的一種常用方法。
更新時間:2025-06-06
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