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About 11% of the lands covering Iranian territory are assigned to agriculture, so as to fulfil nutrient needs of about 75% of the Iranian population. Meanwhile, wheat production is seen to enjoy a highlighted position. Within the recent past, a great deal of discussion has been dedicated to the subject matter of wheat loss in the course of the chain from agricultural production to consumption, so as to find solutions for attenuating such a loss, especially in the course of harvesting the crop using combine harvester. Even though some reports indicated such losses to be as much as 20%, the corresponding figures to industrial countries typically range within 2-5%. Grain loss monitoring system is one of the ways to measure the amount of the grain loss in the combine harvesters. The piezoelectric sensors with great sensitivity are usually utilized in this kind of systems. In order to measure grain loss incurred by cleaning unit of a combine harvester, five piezoelectric sensors are used at an approximate spacing of 14cm. TL072 and LM311N were used to amplification of the recorded signal. In order to evaluate the sensor performance, the device was subject to in-lab investigations indicating the best results at the calibration factor (CF) of 5.
Measure grain loss incurred by cleaning unit of a combine harvester with piezoelectric sensors
Bernhardt G, Hubner R. 2003. Patent No. 0199291. United States.
Eldredge KW. 1985. Patent No. 4490964. United States.
Karimi H, Navid H, Rostami A, Taheri Hajivand A. 2010. Design and fabrication of grain loss monitoring system in combine. 4th International Conference TAE, (pp. 201-207). Prague.
Khalilvandi Behroozyar S. 2013. Investigation of Combine Harvester Rear Vibration in Different Field Conditions, (MSc Thesis), Department of Agricultural Engineering, Tabriz University, Iran.
Sterlioff WP, Elliott WS, Johnson D. 1972. Patent No. 4036065. United States.
Taheri A, Navid H, Robati J, Rezaie M. 2016. A Performance Evaluation Device for Vibration Absorption Unit of Grain Loss Monitoring Device of Combine Harvester, International Journal of Tropical Agriculture, Vol. 34, No.1.
Zhao Z, Yaoming Li, Jin Chen, Jiaojiao Xu. 2011. Grain separation loss monitoring system in combine harvester, Computers and Electronics in Agriculture 76(2), pp. 183-188.
Zhao Z, Yaoming Li, Zhenwei Liang, Jin Chen. 2012. Optimum design of grain impact sensor utilizing poly vinylidene fluoride films and a floating raft damping structure, Bio Systems Engineering 112, 223-227.
