Motion Sensor
- 产品介绍
- Typical experiment
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Introduction
♦ Motion sensor is a sonar equipment generating ultrasonic wave. It receives signal via signal reflecting by objects to measure the time T that high frequency sound wave pulse comes from object to sensor. According to the sound speed in air V, calculate distance between object and sensor: d=V*T/2.
Usage
♦ Connect Motion Sensor to any port in SenseDisc.
♦ Aim the ultrasonic wave probe to object.
♦ Place the object within the measuring range of Motion Sensor.
Notes
♦ Be aware of the dead zone of Motion Sensor.
♦ Keep the reflection surface of the object face to the sensor. The target surface should be big enough to ensure measuring accuracy.
♦ Try to avoid sound interruption, because Motion Sensor only senses object near to it and has strong reflection.
Typical experiment
Typical experiment
♦ Explore the relationship between motion and change of velocity.
