In this paper are presented the characteristics and modes of construction of
optical sensors, as well as typical measuring schemes with optical sensors. As an
illustration of the application of optical sensors in agricultural machines, an analysis is
performed of the measurement of the volumetric flow of the cleaned grain on automotive
agricultural combine harvesters, by means of optical sensors.U radu su prikazane karakteristike i načini gradnje optičkih senzora, kao i
tipične merne šeme sa optičkim senzorima. Kao ilustracija primene optičkih senzora u
poljoprivrednoj tehnici obrađeno je merenje zapreminskog protoka očišćenog zrna na
samohodnim poljoprivrednim kombajnima pomoću optičkih senzora
