Rotary Motion Sensor
Recommended for College, High School, and K-8. Interface and software sold separately.
The Vernier Rotary Motion Sensor is a bidirectional angle sensor designed to measure rotational or linear position, velocity and acceleration.
Description
The Rotary Motion Sensor lets you monitor angular motion precisely and easily. It is direction sensitive. You can use it to collect angular displacement, angular velocity, and angular acceleration data. Typical experiments include measuring moments of inertia, torque, pendula, and Atwood’s machine experiments. Even though we call it a Rotary Motion Sensor, it can also be used to measure linear position to a fraction of a millimeter.
Specifications
- Resolution: 1° or 0.25°
- Optical Encoder: Bidirectional, quadrature encoder, 360 cycle per revolution
- Maximum Speed: 30 rev/s at 1° resolution 7.5 rev/s at 0.25° resolution
- 3-step Pulley: 10 mm, 29 mm and 48 mm groove diameter
Experiments and Lab Ideas
Select a lab book to see a list of experiments and more information.

Advanced Physics with Vernier - Mechanics (4)
Includes student instructions, teacher tips, safety information, and sample data.
Go to Book Page
Engineering Projects with NI LabVIEW and Vernier (1)
Includes student instructions, teacher tips, safety information, and sample data.
Go to Book Page
What’s Included
- Rotary Motion Sensor
- Thumb screw
- 3-step pulley and mounting screw
- O-ring
- Sensor clip
- User manual
Sensor Requirements
The Rotary Motion Sensor requires a compatible interface and software to collect data. Interface and software sold separately. Getting started with probeware »
Compatible Software
The Rotary Motion Sensor will auto-ID with Logger Pro 3.6.1 or newer and LabQuest App 1.1 or newer. All other interface and software combinations require you to manually set up the sensor or load a Logger Pro experiment file.
Download free updates to Vernier software »
Compatible Interfaces
The Rotary Motion Sensor is compatible with these interfaces:
Ordering Information
Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications. Product usage disclaimer »


