Abstract: The low cost portable opacity measurement system is developed to overcome the limitation inherent in fairly accurate method using Portable Opacity Measurement System. Security system finds that tinted glass in vehicles has been major source of concern for women's security as well as criminal activities. To measure the transparency of glass film opacity of vehicles windshields, traffic police and cops should equipped with precise instrument so as the transparency of glass should be within permissible limit as per traffic regulations. The proposed work describes the application of a light intensity measurement to monitor light properties of semi transparent sheets of various materials and presents a novel technique to measure thickness and opacity of tinted glass or acrylic sheet.

Keywords: POMS, Design, Opacity, Microcontroller, Embedded system.