We use the Pasco Motion Sensor II [Model Number CI-6742] for measuring position of a variety of objects in the laboratory. This device works by emitting a series of ultrasonic pulses and measuring the time required for the signal to reflect from an object and return to the device. This time is converted to distance with proper calibration.
The manual below describes the principle of operation of the motion sensor. It has many references to using the device with the Pasco Interface and with Pasco software such as Capstone. You will have to ignore those references since we will use our locally designed and built interface called the Multi-Purpose Laboratory Interface along with the locally written software Physics Lab Assistant instead.
Details in this manual such as the theory of operation, how to aim and set up the sensor, troubleshooting and specifications will all be applicable to our use in the WKU University Physics Laboratory.
Product Manual
Pasco Motion Sensor II
