Design a capacitive sensor for rapid monitoring of seed rate of sugarcane planter

A capacitive sensor method for measuring billet spacing uniformity with sugarcane ( Saccharum officinarm L. ) billet planter is investigated in this paper.  Therefor e , an electronic device based on capacitive sensor was designed and developed to predict the planting spacing of sugarcane billets.  It consisted of four components: a rectangular parallel plate capacitor, electronic circuitry, microcontroller, and display unit.  Accordingly, a prototype of the precision metering device for sugarcane billets was developed.  After calibrating the monitoring system, the results were verified with calibrated curve by means of linear regression and paired T-test.  The performance of the device, including quality of feed index (QFI), multiple index and miss index was investigated under laboratory conditions using a capacitive sensor and a test stand with camera system.  The results revealed that the forward speed had a significant effect on these variables.  The coefficient of variation was less than 3%, which indicated that billet spacing calculated via capacitive sensing method has no significant difference with the computed billet spacing via image processing method. Keywords: c apacitive system, sugarcane, compare monitoring, performance indices, precision planting Normal 0 false false false EN-US X-NONE AR-SA /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;}

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