The Development of Automatic Electronic Granulation Counter Based on Mechanical Properties

In order to meet the need of medicine packing industry for Mechanical Properties such as high speed and accuracy, the electronic granulation counter is developed. The counter consists of LED light source, double linear array CCD sensors TCD1209D, synchronously driving circuit for double linear array CCD based on CPLD EPM3064A, synchronously data acquisition card with A/D converter TLC 5510 of the high speed, and host computer. The test channel is 400 millimeter wide, the horizontal resolution is 0.1 millimeter, the driving frequency of linear array CCD sensors is 10 MHz and the vertical resolution is 0.3 millimeter, software binarization is effective for identifying the medicine tablets of different light transmittance. The experiments show the electronic granulation counter is accurate and reliable, counting speed is over 8000 per minute, and can distinguish the broken tablets and the overlap tablets.