کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
733161 893319 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spinning cone water film power meter for high-power CO2 lasers
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Spinning cone water film power meter for high-power CO2 lasers
چکیده انگلیسی

A laser power meter based on water as an absorbing medium has been developed to measure multi-kilowatt CO2 laser power with high sensitivity and accuracy. Water absorbs CO2 laser radiation readily within a very thin layer. Though water has large thermal capacity, due to short absorption length, it could vapourize at high laser powers. In order to circumvent this problem, this power meter has a centre cone and a rapidly spinning water film as the calorimetric medium. The unique feature in this development is the centre cone, which diverges the beam and reduces the power density thus reduces the possibility of vapourization. This minimizes the error in measurements. Due to the rapidly moving fluid film, it exhibits fast response at low as well as high power levels.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 39, Issue 1, February 2007, Pages 196–201
نویسندگان
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