Measuring on Sugar Content of Sugarcane Based on Phase Locked Loop with Capacitive Sensor

Nonta, Siriporn; Keawphusuk, Anucha; Wardkein, Paramote

doi:10.1088/1742-6596/1039/1/012043

Measuring on Sugar Content of Sugarcane Based on Phase Locked Loop with Capacitive Sensor

Author(s)

Nonta, Siriporn

Keawphusuk, Anucha

Wardkein, Paramote

Date Issued

June 27, 2018

Type

Conference Paper

DOI

10.1088/1742-6596/1039/1/012043

Abstract

The article proposes instrument construction for measuring the sugar content in sugarcanes juice. A interdigital capacitor acting as a sensing element is connected with the sinusoidal generator. Whose output frequency depends on changing the capacitance of interdigital capacitor. To convert the frequency to the direct current (DC) voltage. A sin wave from the generator is converted square wave by comparator circuit before feeding to the phase locked loop circuit. Finally, the DC voltage is changed to concentration of the sugar content in sugarcanes juice.

Citation

Journal of Physics Conference Series, 1039(1), 2018