robot ultrasonic
Infrared vs. Ultrasonic sensors to detect obstacles?
it is better for detecting obstacles in a robot, infrared or ultrasound? I need a complete comparison. What is the distance range of the two?
Ultrasonic rangefinder sensors I built last summer. As someone said above me, the scope is less than 15 feet. The reason being that the sound is a big difference. As reflected by an obstacle, the spread energy of 45 degrees, so that the amount of energy in fact returned to the sensor is much smaller. Also, what works best for flat surfaces, I do not think enough for a robot application. However, if that's all you need is accurate in short distances. Otherwise, use the infrared which are sufficiently cheap, I think.
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Arduino Robot Ultrasonic Ranging Shield $21.98 |
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Lego NXT Ultrasonic Sensor -8527,8547,Mindstorms,Robot $23.74 |
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Kendal Commercial Grade Kendal 9 Liters 200 Watts HEATED ULTRASONIC CLEANER $437.00 4 x strengthened transducers- 42 KHz and 200 Watts ultrasonic cleaning power — Digital Control of Cleaning Time and Temperature LED Digital Display Large stainless steel cleaning tank (11.8″ (L) x 9.5″ (W) x 6.0″ (H)) STAINLESS steel mesh Basket |
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Lego Mindstorms Ultrasonic Sensor 9846 – Robot Eyes $31.99 The Ultrasonic Sensor helps your LEGO?? MINDSTORMS?? NXTrobot judge distances and “see” where objects are! Using the NXT Brick (sold separately), the Ultrasonic Sensor is able to detect an object and measure its proximity in inches or centimeters…. |
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LEGO® MINDSTORMS® Ultrasonic Sensor (9846) $31.99 … |
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Evaluation of robot-aided ultrasonic thickness measurement … |
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Dynamic world modeling for an intelligent mobile robot using a rotating ultra-sonic ranging device … |
