Design and Analysis of Automated Pill Weight Checking Device
Weight, surface quality and dimension checking aspects of article (solid dosage) in the form of pills or capsules are
discussed in this work. According to standard quality test prescribed by Indian pharmacopeia weight measurement aspect (for
uniformity of weight) is integrated into the model designed in this work. In addition to a weight measurement, dimension
verification is also required to avoid defective articles getting mixed up with the non-defective ones in the packing. The device
proposed in this work measures the weight by a load cell and visual inspection by image processing at high speed using
Programmable Logic Controller. The layout of the proposed design is given.
Keywords - Image processing, Load cell, Programmable Logic Controller, Solid dosage, Uniformity of weight.