The Wireless Rotary Motion Sensor measures angle, angular velocity, and angular acceleration, as well as their linear equivalents.
See the Buying Guide for this item's required, recommended, and additional accessories.
Product Summary
The Wireless Rotary Motion Sensor measures angle, angular velocity, and angular acceleration, as well as their linear equivalents. The included three-step pulley allows different torques to be applied, rotating a rigid system at different rates of acceleration. The included rod-mounting holes let you orient the sensor for different experiments. The Wireless Rotary Motion Sensor connects directly to your devices via Bluetooth or USB.
Applications
- Conservation of Angular Momentum
- Rotational Inertia
- Centripetal Acceleration
- Torque
Product Specifications
| Resolution | Angular: 0.18° ≡ Linear: 0.0157 mm (with 10 mm pulley radius) |
| Maximum Rotation Rate | 30 rev/s |
| Three-step Pulley | 10 mm, 29 mm, and 48 mm diameters |
| Shaft Diameter | 6.35 mm |
| Optical encoder | 2000 divisions/rev, bidirectional |
| Connectivity | USB and Bluetooth 5.2 |
| Logging | Yes |
| Battery Type | Rechargeable LiPo |
Battery & Logging
| Stored Data Points Memory (Logging) 1 | >55,000 |
| Battery - Connected (Data Collection Mode) 2 | >12 hr |
| Battery - Logging (Data Logging Mode) 3 | NA |
| Battery Type | Rechargeable LiPo |
1 Minimum # of data points with all measurements enabled, actual results depend on enabled measurements.
2 Continuous use in a connected state until battery failure, actual results will depend on sample rate, active measurements, and battery condition.
3 Logging until battery failure, actual results will depend on sample rate, active measurements, and battery condition.
* Normal classroom use is the sensor in active use for 20min/lab for 120 lab periods/yr.
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 »
Connectivity Options
This product can connect directly to your computer or device with the following technologies. No Interface required. See the following guide for details regarding device compatibility: Wireless Bluetooth Product Compatibility »
- Bluetooth Low Energy (BLE)
- Universal Serial Bus (USB)
Buying Guide
| Recommended Accessories | P/N | Price |
|---|---|---|
| Rotational Inertia Accessory | ME-3420 | -- |
| Pendulum Accessory | ME-8969 | -- |
| Mini Ballistic Pendulum Accessory | ME-6829 | -- |
| Wireless Sensor Charging Station Recommended charging solution for multiple sensors | PS-3599 | -- |
| Parts Available Separately | P/N | Price |
|---|---|---|
| Rod Clamp for Rotary Motion Sensor | ME-8945 | -- |
| Replacement Parts | P/N | Price |
|---|---|---|
| 3-Step Pulley for Rotary Motion Sensor | CI-6693 | -- |
| Micro USB Cable | PS-3584 | -- |
| Also Available | P/N | Price |
|---|---|---|
| USB Bluetooth Adapter Required by older computers without bluetooth 4.0 or later | PS-3500 | -- |
Product Guides & Articles
AP Physics 1 Lab Manual Overview
Authored by physics educators, the Advanced Physics 1 Lab Manual, includes fifteen guided inquiry labs that cover AP Physics 1 topics such as kinematics and dynamics, circular motion and gravitation, energy and momentum, torque, and rotational motion.
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 Wireless Rotary Motion Sensor.
Visit PASCO's Experiment Library to view more activities.
Coupled Pendulum
Two pendula are coupled by a spring. This system has two natural modes: 1. The two pendula swing in phase with each other. 2. The two pendula swing 180 degrees out of phase. When one of the pendula is held at rest and the other...
Rotational Dynamics
Students use hanging masses to apply torque to a rotating arm and measure its angular acceleration. After varying the torque, they experimentally determine the mathematical relationship between net torque and angular acceleration.
Physical Pendulum Period - Wireless
This experiment has two parts: 1. Period of a Thin Rod explores the dependence of the period of a physical pendulum (a uniform bar) on the distance between the pivot point and the center of mass of the physical pendulum. 2. In...
Ampere’s Law
In this experiment, we will verify Ampere’s Law experimentally by graphing the magnetic field strength that is tangent to the path taken along a closed path that encloses a current source.
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.
Large Amplitude Pendulum
This experiment explores the oscillatory motion of a physical pendulum for both small and large amplitudes. Waveforms are examined for angular displacement, velocity and acceleration, and the dependence of the period of a pendulum...
Rotational Dynamics
Students use a rotary motion sensor to determine the mathematical relationship between torque, rotational inertia, and angular acceleration of a rotating object.
Centripetal Force on a Pendulum - Wireless
The purpose of this activity is to experimentally measure the centripetal force acting on a pendulum as a function of angular position. The experimentally measured value will be compared to the value predicted by measurements...
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.
Falling Beam
Students predict the angular velocity of a meter stick that has rotated from the vertical position to the horizontal position. They derive an expression to predict the angular velocity for an arbitrary angle from the horizontal....
Rotational Collisions
Students measure the change in angular velocity when a rotating disc experiences a sudden change in rotational inertia.
Support Documents
| Manuals | ||
|---|---|---|
| Wireless Rotary Motion Sensor Manual | English - 1.62 MB | |
| Safety Sheets | ||
| Lithium Battery Safety Data Sheet | English - 593.56 KB | |
| Knowledge Base | ||
| How do I troubleshoot connecting a wireless sensor? | Aug 22nd, 2022 | |
| Windows asks for a PIN number when connecting wireless sensor or device | Sep 18th, 2023 | |
| Wireless sensor or device not charging | Mar 4th, 2024 | |
| Android asks for a PIN number to pair a wireless device to system | Aug 29th, 2023 | |
| Battery replacement instructions for PS-3220 | Apr 4th, 2024 | |
| Battery warranty for rechargeable lithium ion and lithium polymer batteries | Mar 13th, 2023 | |
| Principle of Operation - Rotary Motion Sensor | Apr 14th, 2022 | |
| Tips for use of micro USB cables | Aug 29th, 2023 | |
