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Pesquisa Agropecuária Brasileira
On-line version ISSN 1678-3921
MANTOVANI, Evandro Chartuni; LEPLATOIS, Michael and INAMASSU, Ricardo Yassushi. Electronic instrumentation use on field performance test of agricultural tractors and implements. Pesq. agropec. bras. [online]. 1999, vol.34, n.7, pp. 1241-1246. ISSN 1678-3921. http://dx.doi.org/10.1590/S0100-204X1999000700017.
Power machinery and implements are being used in many regions of Brazil to support different grain production systems without proper adaptation for working in different soil and weather conditions. To help farmers and manufacters solve problems related to equipments, a performance test needs to be working under a similar field condition. The objective of this research was to evaluate an in-field performance test, using an automatic data acquisition system. The engine power demanded was calculated indirectly, by using the engine rpm and the fuel consumption data on the tractor's calibration curves. The easiness of programming and operating the electronic instrumentation systems allowed to accomplish a great number of performance tests. The results showed very little difference between drawbar force measured and calculated obtaining 0.996 of correlation. The metodology used for in-field performance test showed to be a very powerfull tool to help farmers and the industry better manage their equipments and to improve performance.
Keywords : agricultural mechanization; automatic data acquisition; performance tests.