MotionDot for Cobra DigiMotion

Function and Use

The MotionDot is the mobile signal source of the Cobra DigiMotion system and enables highly precise detection of two-dimensional movements. Through electromagnetic induction, its position on the MotionBoard (12975-21) is continuously recorded and displayed in real time in the digiLAB app. This makes motion sequences directly visible, analyzable, and measurable. Depending on the experiment, the MotionDot is attached to, for example, a pendulum, catapult, rotating arm, or other experimental setups and moves within the effective measuring range of the MotionBoard.

Typical classroom applications:

• Kinematics (e.g., projectile motion)
• Dynamics (e.g., Newton’s Second Law)
• Oscillations (e.g., pendulum experiments)
• Energy analysis (e.g., free fall)
• Circular and rotational motion

Benefits

• Highly precise position measurement using electromagnetic sensor technology
• Real-time data transmission via Bluetooth
• Direct analysis with the free digiLAB app
• Wireless operation thanks to integrated rechargeable battery
• Quick experimental setup and easy handling
• Ideal for student experiments in lower and upper secondary education

Technical Specification

• Optimal measuring distance: 8–16 mm
• Power supply: 3.7 V / 65 mAh lithium battery
• Battery life: approx. 24 h
• USB Type-C charging port
• Data transmission via Bluetooth