Джамийков, Тодор Стоянов; Маринов, Марин Беров; Dzhamiykov, Todor Stoyanov; Marinov, Marin Berov; Алексиев, Димитър рец.
Сензорна система за определяне на оптичен контраст
Sensor system for optical contrast measurement
PROCEEDINGS OF THE TECHNICAL UNIVERSITY - SOFIA, 55, 2005 - Anniversary “Sixty Years Technical University - Sofia”, pp. 19-25
TU - Sofia
сензорни системи - приложение в оптиката; sensor systems - application in optics; optical contrast - measurements
Human eye reacts on the brightness of luminous objects. Nowadays integral sensors for measuring of contrast can not be found on the market. To determine the contrast between two surfaces usually, first, is measured the illumination in a point of each surface and, second, the contrast is calculated from the measured values. This conventional approach requires the use of two sensors or shifting a single sensor at different positions. In this paper we present a system for measurement of contrast that uses integral optoelectronic sensor with sensitive surface. The surface is composed of separate segments that can be switched by electrical signals. A detailed mathematical model of the whole system and its control is presented. The control of the system is accomplished with programmable logic.
Рецензент доц. д-р Димитър Алексиев. Статията съдържа черт. и формули. Библиогр., с. 25