The Rotary Motion Sensor has unique setup procedures.
Connecting the Rotary Motion Sensor
Connect the Rotary Motion Sensor to the digital inputs of your interface (DIG 1 or 2 on LabQuest, DIG/SONIC 1 or 2 on LabPro).
Note: Rotary Motion Sensors do not have the auto-ID
feature and
must
be set up manually.
Once the Rotary Motion Sensor is set up in the Sensor Setup window, the sensor status will be shown. The position is in millimeters. The status of The Rotary Motion Sensor is also displayed under the Toolbar. A Zero button will also be added to the Toolbar | ![]() |
Setting Up Rotary Motion Sensor Settings
The default collection setting for the Rotary Motion Sensor is
Position
(in mm) vs. Time. The position will change with the
rotation of
the wheel.
Click on the sensor icon and select a setting (the settings are also available in the calibration pop-up at the top of the Sensor Settings dialog). They are:
Reset on Collect: Toggles automatic zeroing of position and angle variables when data collection is initiated.
Current Calibration:
Note that the maximum allowable speed of the pulley shaft is reduced when 4X mode is used.
The settings can be adjusted in the Equation
/ Options window.
Counts/rotation: 360
means that one count
is given for each full rotation
<unused>:
X4 Mode: Set to 1
for high resolution, 0
for standard resolution.
Diameter: Diameter
of the wheel used to
measure
distance.