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Dynamic Performance Evaluation of a Low Cost Load Sensor

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2010 Pittsburgh, Pennsylvania, June 20 - June 23, 2010  1009603.(doi:10.13031/2013.31933)
Authors:   Abhinaya Subedi, Dev Shrestha
Keywords:   Soil sampler, Flexiforce sensor, Standard load sensor

A low cost load sensor was tested for its dynamic performance for vibrating field combine loading condition for an automated soil sampler that is being designed at the University of Idaho. The sampler requires a load sensor to continuously measure the weight of the soil on board, mounted on a potato combine harvester. Two types of sensors, a low-cost load sensor (Flexiforce) and a standard load sensor were tested and their performance was evaluated. Flexiforce sensor was found to be more susceptible to external electrical noise than its expensive counterpart. However, the performance of the flexiforce was comparable to the high end load sensor after filtering the noise.

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