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Weighing System by Load Cell Response Rectification Method
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Author(s): Karunamoy Chatterjee (Department of Electronics & Communication Engineering, Bankura Unnayani Institute of Engineering, Bankura, India), Sankar Narayan Mahato (Department of Electrical Engineering National Institute of Technology, Durgapur, Burdwan, India)and Subrata Chattopadhyay (Department of Electrical Engineering, National Institute of Technical Teachers Training & Research-Kolkata, Kolkata, India)
Copyright: 2012
Volume: 2
Issue: 3
Pages: 11
Source title:
International Journal of Measurement Technologies and Instrumentation Engineering (IJMTIE)
Editor(s)-in-Chief: Ireneusz Jablonski (Wroclaw University of Technology, Poland)and Md. Zia-Ur- Rahman (K L University, India)
DOI: 10.4018/ijmtie.2012070104
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Abstract
In the area of mass production, the products are weighted using load cell based weighting system. A load cell may be capacitive or resistive, is an uncontrollable weighing device. Load cell response rectification can be used to speed up the process of measurement. This paper investigates the application of analog adaptive techniques in load cell response rectification and modeling of an accurate weighing system by using that load cell. The load cell is a sensor with an oscillatory output in which the measurand contributes to response parameters. Thus, a compensation filter needs to track variation in measurand whereas a simple, fixed filter is only valid at one load value. To facilitate this investigation, computer models for the load cell and the adaptive compensation filter have been developed and implemented in PSpice. Simulation results are presented demonstrating the effectiveness of the proposed compensation technique.
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