Nondestructive Measurement of Moisture Content of Different Varieties of Wheat Using a Single Calibration with a Parallel-Plate Capacitance Sensor

2012 ◽  
Vol 55 (4) ◽  
pp. 1583-1587 ◽  
Author(s):  
C. V. K. Kandala ◽  
J. Sundaram ◽  
N. Puppala ◽  
V. Settaluri
Keyword(s):  
Moisture Content ◽  
Parallel Plate ◽  
Capacitance Sensor ◽  
Nondestructive Measurement ◽  
Single Calibration

Analysis of Wood’s Capacitance Characteristic to its Hardness

2015 ◽  
Vol 771 ◽  
pp. 161-164
Author(s):  
Mufti Esofita ◽  
Mitra Djamal ◽  
Warsito P. Taruno ◽  
Mahfudz Al Huda ◽  
Marlin Baidillah ◽  
...  
Keyword(s):  
Moisture Content ◽  
Forest Plantation ◽  
Parallel Plates ◽  
Capacitance Sensor ◽  
Paraserianthes Falcataria ◽  
Fast Growing ◽  
Measurement Results ◽  
Good Relation

A capacitance sensor has been designed to investigate the correlation between wood capacitance value, Janka hardness rating and density. The sensor was developed based on parallel plates using copper as the electrodes. Capacitance values were measured using CV-circuit, 20 Vp-p, 2.5 MHz. Five wood specimens from forest plantation that is Karet (Hevea brasiliensis), Pulai (Alstonia sp.), Pinus (Pinus mercusii), Sengon (Paraserianthes falcataria), and fast growing teak (Tectona grandis) were tested. Each specimen was measured in tangential and radial directions under 0% moisture content conditions. The designed sensor was capable to distinguish the capacitance values in tangential and radial directions. The measurement results showed that wood capacitance value has a good relation with wood’s hardness and density.

Sign in / Sign up

Export Citation Format

Share Document