The PASPORT Rotary Motion Sensor measures angle, angular velocity, angular acceleration and linear position, velocity, and acceleration.
See the Buying Guide for this item's required, recommended, and additional accessories.
Product Summary
The PASPORT Rotary Motion Sensor is used to measure position, velocity, and acceleration, both angular and linear, with high resolution (4000 divisions/rev). The maximum spin rate is 30 rev/sec.
How it Works: The Rotary Motion Sensor detects the angle with an optical encoder which interrupts the light beam 4000 times per revolution of the Rotary Motion Sensor shaft. The 6.35 mm diameter, dual ball-bearing shaft extends from both sides of the unit so objects can be attached to either side. The rod clamp, which can be attached to three sides of the sensor, allows the unit to be mounted in almost any orientation. It has a three-step pulley to vary the applied torque. The PASCO Super Pulley with Clamp can be clamped to the platform on the Rotary Motion Sensor to apply a torque with a hanging mass.
Features
- Three-step pulley (10, 29, and 48 mm in diameter) is included.
- Rod clamp can be attached on three sides
- Built-in storage for the hex key for removing the rod clamp.
- Measures the direction of rotation
- Ball bearings minimize friction and provide mechanical support to rotating objects
Applications
- Verify conservation of angular momentum
- Calculate the rotational inertia of a disk, ring, and point mass
- Measure the displacement, velocity, and acceleration of a cart on a track
- Conduct quantitative analysis of simple harmonic motion
- Measure the acceleration of a cart caused by a mass hung over a pulley
- Accurately measure the angular acceleration of systems with constant torque
Product Specifications
Resolution | Angular: 0.09° (0.00157 rad) ≡ Linear: 0.0078 mm |
Maximum Rotation Rate | 30 revs/s |
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 to indicate the direction of motion; 4000 divisions/rev |
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 |
---|---|---|
Rotational Inertia Accessory | ME-3420 | -- |
Induction Wand | EM-8099 | -- |
Linear Motion Accessory | CI-6688A | -- |
Pendulum Accessory | ME-8969 | -- |
Chaos/Driven Harmonic Accessory | CI-6689A | -- |
Dynamics Track Mount | CI-6692 | -- |
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
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 PASPORT Rotary Motion Sensor.
Visit PASCO's Experiment Library to view more activities.
Polarization of Light
The plot of light intensity versus angle between two polarizers is fitted to the square of the cosine of the angle, verifying the Law of Malus.
Rotational Inertia
The purpose of this experiment is to find the rotational inertia of a ring and a disk experimentally and to verify that these values correspond to the calculated theoretical values.
Conservation of Energy of a Simple Pendulum
The purpose of this experiment is to use measurements of the motion of a simple pendulum to calculate and compare the different types of energy present in the system.
Centripetal, Tangential, and Angular Acceleration
A rod rotates in a horizontal plane, and is made to slow steadily to a stop. This setup is used to explore the different types of acceleration involved in this motion: centripetal, tangential, and angular acceleration.
Rotational Inertia
A known torque is applied to the three-step pulley on the Rotary Motion Sensor, causing a disk and ring to rotate. The resulting angular acceleration is measured using the slope of a graph of angular velocity versus time. The...
Rotational Dynamics
In this lab, students use rotary motion sensors to determine the mathematical relationship between torque, rotational inertia, and angular acceleration of a rotating object.
Electromagnetic Induction
In this lab, students will use an induction wand, rotary motion sensor, variable gap magnet, and magnetic field sensor to determine how the rate of change of magnetic flux through a coil affects the magnitude and direction of...
Interference and Diffraction
Diffraction and interference patterns are measured for single and double slits by scanning the laser pattern with a light sensor and plotting light intensity versus distance. Differences and similarities between interference and...
Statics
The components of tension from the two parts of the string are compared to the Force Sensor pulling at the center of the string in a system in static equilibrium. Students sum the force vectorally.
Interference and Diffraction of Light
The distances between the central maximum and the diffraction minima for a single slit are measured by scanning the laser pattern with a light sensor and plotting light intensity versus distance. Also, the distance between interference...
Rotational Kinetic Energy
This lab investigates the potential energies for a modified Atwood's Machine, where a disk has been added to the Rotary Motion Sensor pulley.
Conservation of Angular Momentum
A disk is dropped onto a rotating disk. The initial angular momentum is compared to the final angular momentum, and the initial kinetic energy is compared to the final kinetic energy.
Support Documents
Manuals | ||
---|---|---|
PASPORT Rotary Motion Sensor Manual | English - 588.17 KB | |
Sensor de rotación | Spanish - 1.11 MB | |
PASPORT Rotary Motion Sensor | Russian - 593.51 KB | |
Other Documents | ||
PASPORT Rotary Motion Sensor Experiment Guide | English - 941.19 KB | |
Knowledge Base | ||
Principle of Operation - Rotary Motion Sensor | Apr 14th, 2022 |