Split Motion Sensor

Introduction

♦ There are two parts in split motion sensor which are transmitter and receiver.The working principle is: the speed of light and sound are differ by several orders of magnitude. In a short time period, we can assume the time required for light transmission is 0. Transmitter transmits infrared ray signal to receiver and inform it the time of ultrasonic transmission. It sends ultrasonic signal at the same time. Receiver starts recording time once it gets the signal. Receiver stops recording time once it receives ultrasonic signal. It calculates the distance between transmitter and receiver according to the formula: distance = speed of sound × time.

Usage

♦  There are transmitter and receiver in the sensor. Built-in lithium battery is designed in transmitter. Press the red button and indicator is light up. The transmitter is turned on. It should be mounted on the measured object during using. 

♦  The receiver should be connected to datalogger using data cable. Connect datalogger to computer using blue data cable.

Typical experiment

♦  Hooke's law

Others

♦  Elongation characteristic of spring

其他典型实验

♦  简谐运动

♦  受迫振动

♦  探究匀速、匀加速直线运动

Instruction Manual

Video