The Wireless Motion Sensor uses ultrasound to measure the position, velocity, and acceleration of objects.
See the Buying Guide for this item's required, recommended, and additional accessories.
The Wireless Motion Sensor connects via Bluetooth or USB to your device, and uses ultrasound to measure the position, velocity, and acceleration of objects. This enables students to take turns measuring themselves, while the class observes their motion materializing as a graph in real time. The sensor can detect objects ranging from 15 cm to 4.0 m away, and without cables to get in the way, students can explore handheld and ceiling-mounted applications.
- Measures position, velocity, and acceleration
- False Target Rejection Technology produces cleaner data
- Clips directly to PASCO Dynamics Tracks
- Rod clamp for mounting
- 180° pivoting head
- Rechargeable lithium-ion battery
- Bluetooth® or USB connectivity
- Measure the motion of moving objects
- Explore the relationship between position, velocity, and acceleration
- Measure objects in freefall
- Measure how air resistance affects falling objects
- Investigate frames of reference
- Investigate the Conservation of Energy and Momentum
- Simple harmonic motion
- Seafloor mapping
How It Works
The Wireless Motion Sensor uses echolocation, similar to a dolphin or bat. In order to determine the distance to an object, an ultrasonic pulse is emitted from the sensor. The sensor listens for a signature ‘echo’ which reflects off the object’s surface. The object's distance is calculated by determining the elapsed time between the ultrasonic pulse and detected echo, then, this value is used with the speed of sound to calculate the object's distance. Measurements of velocity and acceleration are derived algorithmically using numerical methods. This provides a balanced approach to calculating numerical derivatives, which reduces noise and minimizes smoothing effects on high frequency peaks.
|Range||0.15 to 4 m|
|Maximum sample rate||50 Hz|
|Transducer rotation range||180°|
|Connectivity||Direct USB or via Bluetooth (Bluetooth 4.0)|
Battery and Logging
|Stored Data Points Memory (Logging) 1||Not Supported|
|Battery - Connected (Data Collection Mode) 2||>20 hr|
|Battery - Logging (Data Logging Mode) 3||Not Supported|
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.
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 »
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)
|Motion Sensor Bracket||PS-2546||$26|
|Motion Sensor Guard||SE-7256||$19|
|For use with dynamics systems. Cart Adapter Accessory||ME-6743||$31|
|For use with dynamics systems. Elastic Bumper||ME-8998||$41|
|Free MatchGraph! Software||MGRAPH-0000||$1|
Perform the following experiments and more with the Wireless Motion Sensor.
Visit PASCO's Experiment Library to view all activities for this product.
Use a motion sensor to test predictions of how the speed and velocity of a cart will differ.
In this lab, students will use motion sensors to measure the velocity of a cart as it travels down an inclined track and collides with an obstacle.
In this lab lab, students will use motion sensors to apply the concepts of relative motion and frames of reference to understanding velocity as a vector quantity in one-dimensional motion.
In this lab, students will use motion sensors to detect how energy is transformed in a dynamics system. Students will observe that the total energy of a system is conserved.
In this lab, students will use motion sensors to measure the period of a simple pendulum.
Use a motion sensor to introduce the concept of representing motion as a change of position in a graphical form.
|Wireless Motion Sensor Manual||English||1.19 MB|