This is the Vernier Motion Detector, a simple sensor that can be used to collect position, velocity and acceleration data of moving objects. This Vernier sensor can be used to study the motion of walking individuals, bouncing objects, a swinging pendulum, or anything else that moves.
These Motion Detectors can measure moving objects as close as 15 cm in front of them and as far as 6 meters away with a resolution of 1 mm. These Vernier sensors are also equipped with a pivoting head to help the user gain a different angle of view of a moving object and a sensitivity switch to produce higher quality data.
Technical Description:
This Motion Detector emits short bursts of ultrasonic sound waves from the gold foil of the transducer. These waves fill a cone-shaped area about 15 to 20° off the axis of the centerline of the beam. The Motion Detector then “listens” for the echo of these ultrasonic waves returning to it. The equipment measures how long it takes for the ultrasonic waves to make the trip from the Motion Detector to an object and back. Using this time and the speed of sound in air, the distance to the nearest object is determined.
Limitation:
Range the sensor can cappure
Skill:
3 – Competent
Sample Sensor: