Abstract
To measure the thickness of liquid films from 10 to 60 , we used photochromic dye activation. And we used silicone oil with 10 centi-Stokes and commercial photochromic dyes. To make films with exact and known thicknesses, we used two glass wafers. A film formed between two wafers after placing a drop of liquid of known volume on one wafer and covering the other. The film thickness could be estimated from the diameter of wafer and the dropped liquid volume. To quantitatively evaluate the result, captured the images using digital camera then analyzed the images using the image tool. The gray scale intensity using the captured images of activated dye with these thicknesses showed the repeatability below 1.0% when measured with a silicone oil solution containing 0.1% SO and SO-ANTH dyes. And we showed that photochromic dye activation method could be used to measure our liquid film thickness ranges. 鳪떭釬骩鷫ꪅ铭閙賬芬駭验 歳慢挀 Ā 偳�⨀ Ā ի獡扣 栱ﶖ⨀ 頱ﶖ⨀ 周攠䭯牥慮⁓潣楥瑹潲⁁灰汩敤⁂楯汯杩捡氠䍨敭楳瑹獴猀 戀 Ȁ 衴�⨀ Ȁ܀ ك佌䍌䄁戀 쀟ﶖ⨀ ﶖ⨀ †ﶖ⨀ ꧬ鮔萀 住卍䉋 Ā܀ 灵�⨀ Ā 体䵂䬀 耠ﶖ⨀ 뀠ﶖ⨀ ꧬ鮔萀 住卍䉋 Ā܀ 䡶�⨀ Ā 体䵂䬀 〟ﶖ⨀ 怟ﶖ⨀ 洀 䕖䥃䐀 瀞ﶖ⨀ ꀞﶖ⨀ 퀞ﶖ⨀ ك佐奃䴀 뀝ﶖ⨀ ﶖ⨀ သﶖ⨀ 住卍䉋 瘳㉮㈀ ༀ 큸�⨀ 䀀 体䵂䬆瘳㉮㈀ 䁹�⨀ ܍
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