Hardi AutoHeight, Instruction Book

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3 - Description
12
B. Crash avoided with additional sensors
Figure 3 - Severe Terrain - Additional Sensors Required
The centre section sensor can also be used to adjust the slant angle of the entire boom. Alternatively, slant sensors can also
be used to adjust the main slant angle of the entire boom. Addition of this sensor to the AutoHeight system can greatly
improve the speed and stability of the automatic control actions.
Figure 4 - Slant Control of the Main Frame
Height Sensors
• Height sensors use an ultrasonic signal to measure distance to the ground or crop canopy.
• Normally there are three height sensors used, but a system may have as many as 6 sensors. A sensor is mounted to the
outer part of each boom tip, and another sensor is mounted to the centre section.
Roll Sensors
•
Roll sensors are important for measuring boom and sprayer roll dynamics.
•
Two roll sensors are normally used for a UC4+ Spray Height Control System.
•
The mounting position of the roll sensors varies from sprayer to sprayer depending on boom geometry and
suspension.