The AX-1 uses one downward-facing height sensor per spraying module to continuously measure the distance to the surface below — enabling automatic boom adjustment and precise droplet timing in real time.
Figure 1 Height sensors measurement
Each sensor continuously measures the distance to the first solid surface below it, whether that's bare soil or the top of the crop canopy. All readings are filtered and fused into a single boom height estimate, which the AX-1 uses in real time for two purposes:
Boom positioning: the boom automatically adjusts up or down to keep the nozzles at 15 cm above the target surface.Droplet timing: each nozzle releases droplets precisely at the right moment based on the actual measured height.
This means the AX-1 maintains consistent and accurate spray placement automatically, even as terrain and crop height vary a little across the field.