Article citationsMore>>

Kandala, C.V.K. and Sundaram, J. (2010) Nondestructive Measurement of Moisture Content Using a Parallel-Plate Capacitance Sensor for Grain and Nuts. IEEE Sensors Journal, 10, 1282-1287.
http://dx.doi.org/10.1109/JSEN.2010.2041446

has been cited by the following article:

• TITLE: Nondestructive Determination of Moisture Content in Dry Fruits by Impedance and Phase Angle Measurements

  AUTHORS: Chari V. Kandala, Ron Holser, Jaya Sundaram, Naveen Puppala

  KEYWORDS: Cherries, Blueberries, CI Meter, Moisture Content, Capacitance, Impedance, Dry Fruits

  JOURNAL NAME: Journal of Sensor Technology, Vol.5 No.4, December 25, 2015

  ABSTRACT: An electronic method to estimate the moisture content (MC) of dry fruits by measuring the impedance (Z) and phase angle (θ) of a cylindrical parallel-plate capacitor with dry fruit sample between the plates, using a CI meter (Chari’s Impedance meter) at 1 and 9 MHz is described. Capacitance C was derived from Z and θ, and using the C, θ, and Z values of a set of dried cherries, whose MC values were later determined by the vacuum hot air-oven method, a calibration equation was developed. Using this equation, and their measured C, θ, and Z values, the MC of a group of cherries, not used in the calibration, was predicted. The predicted values were compared with their air-oven values. Similar predictions were done using the same method on dried blueberries. The method worked well with a good R2 value, and showed a low standard error of prediction (SEP) in the measured MC range between 5% and 30% for cherries, and 9% and 22% for blueberries.