The Wireless Motion Sensor uses ultrasound to measure the position, velocity, and acceleration of objects.
- 1x USB charging cable
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 their own distance to the sensor, 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.
- 1x USB charging cable
|Range||0.15 to 4 m|
|Maximum sample rate||100 Hz|
|Transducer rotation range||180°|
|Connectivity||Direct USB or via Bluetooth 4.0|
Battery & Logging
|Stored Data Points Memory (Logging) 1||Not Supported|
|Battery - Connected (Data Collection Mode) 2||>20 hr|
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)
|Mount a motion sensor to any magnetic surface. Motion Sensor Bracket||PS-2546||$27|
|Protects the motion sensor from falling objects while it records data . Motion Sensor Guard||SE-7256||$19|
|Used to mount motion sensors to the top of dynamics carts (and other dynamics systems). Cart Adapter Accessory||ME-6743||$31|
|Protects the motion sensor from moving carts. Elastic Bumper||ME-8998||$41|
|Recommended charging solution for multiple sensors Wireless Sensor Charging Station||PS-3599||$99|
|Free MatchGraph! Software||--||--|
|Required by older computers without bluetooth 4.0 or later USB Bluetooth Adapter||PS-3500||$14|
Perform the following experiments and more with the Wireless Motion Sensor.
Visit PASCO's Experiment Library to view more activities.
Students will use a motion sensor to investigate how position, velocity, and acceleration may all be described and quantified when explaining motion.
In this activity, students will use motion and force sensors to analyze the relationships between force, mass, and acceleration.
In this activity, students will use motion sensors to analyze how gravity affects the motion of falling objects varying in size and mass.
In this lab, students will use force and motion sensors to determine the spring constant. Students will measure the spring extension created by three different masses suspended from the spring.
In this lab, students will use force and motion sensors to study the relationship between the net force applied to an object, the acceleration of the object, and the object's mass.
In this lab, students will use motion sensors to determine how force influences the motion of an object. Students will observe that an object’s motion is unchanged in the absence of an external force.