- The price is of 8 sonars
- These are Maxbotix Sonars
- Lowest price of 8 Maxbotix Sonars!!
- Sonars are an optional component of the Erratic
(ERA-MOBI) platform. Because of their wide admittance angle,
- sonars are good at detecting obstacles and their distance, but poor at
determining their angular location.
The sonar ring fits on the front of Erratic, just under the top
plate, and is split into two components of 4 sonars each. The beam pattern
is optimized for obstacle detection, with a very dense pattern in front of the
robot. The images show the beam pattern, using 30 degree cones, the
approximate shape of the sonar beam.
The side-looking sonars are placed to facilitate wall-following,
since they will reflect from a wall as the robot moves parallel to it.
The sonars are MaxSonar EZ1 devices from MaxBotics. Their
maximum range is just over 6m, with reliable detection of smaller obstacles out
to 3-4m. The controller fires the sonars in a fixed pattern at 20 Hz.
LV-MaxSonar-EZ1 data
sheet
