ULTRASONIC SAMPLER IN COMBINE

摘要

PURPOSE:To accurately carry out sampling without undergoing an influence of car speed, by constituting a sampler so as to measure the sampling period by an ultrasonic sensor at an interval of a constant distance. CONSTITUTION:When a reaping part 6 is lowered by a position sensor 12, the ground height is sensed by an ultrasonic sensor 16. If the value sensed by the ultrasonic sensor 16 is different, correction is directly made to carry out control by action of the ultrasonic sensor 16 at an interval of a constant distance. Since the field condition well sometimes change to fluctuate ground height after advance of a constant distance, the ground height is remeasured by the ultrasonic sensor 16 to correct the ground height of the reaping part 6.