Allows students to measure angular velocity, acceleration, centripetal forces, and other full range of motion experiments.
See the Buying Guide for this item's required, recommended, and additional accessories.
Product Summary
Measure angle and angular velocity or measure distance and linear velocity using the rack or the pulley. This sensor is also bi-directional, indicating the direction of motion.
Applications
- Conservation of Angular Momentum
- Rotational Inertia of Disk and Ring
- Rotational Inertia of Point Mass
- Force vs. Displacement
- Acceleration of Cart with Massive Pulley
- Tension vs. Angle
- Simple Harmonic Motion
How It Works
The 6.35 mm diameter, dual ball-bearing shaft extends from both sides of the unit and provides an excellent platform for rotational experiments. The rod clamp (which can be attached on three sides of the sensor) allows the unit to be mounted in almost any orientation. A three-step pulley and a mount for the PASCO Super Pulley make it easy to perform torque experiments.
The heart of the sensor is an optical encoder. Since this is a digital technology, there is no drift or cumulative error; zero always indicates the same point. The resolution, 1° or 0.25°, is software-selectable.
Product Specifications
| Resolution |
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| Maximum Rotation Rate |
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| Sensor Dimensions | 10 cm x 5 cm x 3.75 cm |
| Three-step Pulley | 10 mm, 29 mm, and 48 mm diameters |
| Shaft Diameter | 6.35 mm |
| Optical Encoder | Bidirectional, indicates direction of motion |
| Connector | Dual stereo phone plug for 850, 550, and ScienceWorkshop interfaces |
Data Collection Software
This product requires PASCO software for data collection and analysis. We recommend the following option(s). For more information on which is right for your classroom, see our Software Comparison: SPARKvue vs. Capstone »
Interface Required
This product requires a PASCO Interface to connect to your computer or device. We recommend the following option(s). For a breakdown of features, capabilities, and additional options, see our Interface Comparison Guide »
Buying Guide
| Recommended Accessories | P/N | Price |
|---|---|---|
| Linear Motion Accessory | CI-6688A | -- |
| Pendulum Accessory | ME-8969 | -- |
| Chaos/Driven Harmonic Accessory | CI-6689A | -- |
| Mini Ballistic Pendulum Accessory | ME-6829 | -- |
| Replacement Parts | P/N | Price |
|---|---|---|
| 3-Step Pulley for Rotary Motion Sensor | CI-6693 | -- |
| Rod Clamp for Rotary Motion Sensor | ME-8945 | -- |
| Also Available | P/N | Price |
|---|---|---|
| A-Base Rotational Adapter | CI-6690 | -- |
Product Guides & Articles
Using ScienceWorkshop Sensors
PASCO's original line of sensors (in the black cases) can be used directly with the 550 or 850 Universal Interfaces, the legacy ScienceWorkshop Interfaces, or with our other PASPORT interfaces by using the correct adapter.
Rotary Motion Sensors
Rotary motion sensors, often referred to as rotary encoders or angular position sensors, are vital components in the realm of science and engineering, designed to measure and track the rotational movement of objects with precision. These sensors are employed to determine the angular displacement, speed, and direction of rotation of various mechanical components such as motors, shafts, and wheels.
Experiment Library
Perform the following experiments and more with the Rotary Motion Sensor.
Visit PASCO's Experiment Library to view more activities.
Ballistic Pendulum
A Ballistic Pendulum is used to determine the muzzle velocity of a ball shot out of a Projectile Launcher. The laws of conservation of momentum and conservation of energy are used to derive the equation for the muzzle velocity.
Oscillation of Cart and Spring
For a spring and cart system, the effect on the period is investigated when changing the spring constant, amplitude of the oscillation, and the mass of the cart.
Support Documents
| Manuals | ||
|---|---|---|
| Rotary Motion Sensor Experiment Guide | English - 1.47 MB | |
| Rotary Motion Sensor Manual | English - 1.82 MB | |
| Knowledge Base | ||
| Principle of Operation - Rotary Motion Sensor | Apr 14th, 2022 | |
