Guidance system for farm implements

Details Guidance system for farm implements Guidance system for farm implements

G - Physics

08

C

340/134.2

G08C 21/00 (2006.01)

Patent

CA 1270540

Abstract of the Disclosure A guidance system for a tractor drawn farm implement for providing an indication to the operator of the tractor as to variance of the implement from a desired course includes a pair of horizontally extending ???ler rods supported by a shaft and having free ends extending in a parallel spaced relation to sense the crop and rotate the shaft if the implement veers off course. A light sensitive photopotentiometer coupled to the shaft has its output voltage varied as a function of the angular position of the shaft. A signal processing circuit responds to variation in the voltage of the light sensitive photo- potentiometer to drive the needle of an analog meter to indicate the direction and amount of deviation of the implement from the desired course, the meter being mounted on the tractor and within the line of sight of the operator.

541078

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