Introducing a Novel Technique of Detecting Fruits Contaminations Using Terahertz Sensing

摘要

This paper mainly presents preliminary results by employing terahertz technology for determining the moisture content (MC) of fruits slices over the course of seven days. In this paper, a novel technique has been presented to determine the transmission and path-loss response of fruits during the loss of moisture content by employing the integrated system of vector network analyzer (VNA) techniques and Swissto12 system over the frequency range from 0.75 THz to 1.1 THz. The results presented in this paper showed that the decreasing MC with the every passing day caused the differences in transmission and path-loss response, which further indicates that the different concentration of substances in fruit emerges a unique absorption characteristic. The application proposed here can be employed for the feasible and non-invasive method of determining the quality control of fruits.