Related Experiment Video
Updated: Mar 18, 2026
08:21
Wideband Optical Detector of Ultrasound for Medical Imaging Applications
Published on: May 11, 2014
11.8K
Object Detection for Agricultural and Construction Environments Using an Ultrasonic Sensor
Journal of Agricultural Safety and Health
|July 5, 2016
Summary
Ultrasonic sensors effectively detect rigid objects in outdoor environments. Softer, irregular objects like plants or dog models present detection challenges, especially at greater distances.
Area of Science:
- Robotics and Automation
- Sensor Technology
- Environmental Perception
Background:
- Outdoor autonomous systems require reliable object detection.
- Ultrasonic sensors are commonly used but their performance varies with target properties.
Purpose of the Study:
- To evaluate ultrasonic sensor performance for detecting diverse outdoor objects.
- To identify object characteristics influencing detection accuracy and range.
Main Methods:
- Tested an ultrasonic sensor with various objects (water jug, OSB, fence posts, plant species, models) at distances from 0.01 to 3 meters.
- Categorized detection as "undetected," "intermittent," "incorrect distance," or "good" over multiple trials.
Main Results:
- Rigid objects with large surface areas (water jug, OSB) showed superior detection.
- Softer textured objects (plants, dog model) exhibited reduced detection, particularly at longer ranges (approaching 3 m).
- Detection reliability decreased with decreasing object surface area and increasing surface softness.
Conclusions:
- Ultrasonic sensor performance is highly dependent on target object properties.
- Designers of outdoor robotic systems must consider object material and geometry for sensor selection.
- Further research may focus on sensor fusion or advanced signal processing for improved detection of challenging targets.
