Patent 8345248 was granted and assigned to Electronics and Telecommunications Research Institute on January, 2013 by the United States Patent and Trademark Office.
Provided are an optical cavity enhanced turbidimeter and a turbidity measure method. After casting a pulse beam or a beam having a steep intensity gradient into an optical cavity, the turbidity of the inside region of the optical cavity can be calculated using an attenuation rate of an output beam from the optical cavity.