Rapid detection equipment of food safety based on rear spectroscopic technology and CCD

Abstract

Traditional food safety detection has many short-coming such as the complex light path system, low detection efficiency and low detection precision. In this paper, a new rapid detection equipment of food safety based on rear spectroscopic technology and Charge-coupled Device (CCD) was presented. We the photoelectric colorimetric system was redesigned. The optical path system was simplified by the rear spectroscopic technology, thus the new equipment reduced the volume and weight of the instrument than traditional food safety detection. The flat field holographic concave grating and linear array CCD can collect the plane full spectrum signal at one time, so the new equipment can apply to multicomponent pigment measurement. Experimental results prove its stability which verifies the reasonableness of software and hardware designing.