Abstract

Agricultural machines contribute a major portion of the total cost of crop production. Proper matching of tractors and implements is crucial for maintaining high operational efficiency on the farm. If the implementation is specified, the draft will be a function of travel speed for a given soil condition and a cultivation depth. Operating costs for any given tractor or implement can be minimized by selecting an optimum travel speed, or for a given speed the implement width could be optimized to reduce operation costs. This review deliberates on the latest work being done for tractor rear axle torque measurement under dynamic conditions and also the functional principle of instrumented strain-gage based transducers for the farm tractor rear axle was explained to optimize the power requirement of tractor implement combination.

Key words: Telemetry system, transducers, slip rings, microcontroller.