Cobra DigiMotion Expert Set

Function and Applications

TheCobra DigiMotion Expert Set is a comprehensive experimental kit for conducting 9 experiments on various topics in kinematics and dynamics. It is designed for use in middle and high school physics lessons and is intended for the study of two-dimensional plane motion. The set consists of an electromagnetic board and a signal source. It is based on the principle of electromagnetic positioning and allows continuous measurement of the signal source’s position at any time within the effective measurement area. Through high-frequency data acquisition, the trajectory of objects in two-dimensional motion can be displayed using the included free software. Velocity and acceleration can be calculated from the position data at any moment. Measurements are performed simultaneously with the visualization of motion phenomena, making physical laws clearly visible.

Benefits 

• High measurement accuracy through electromagnetic positioning
• Clear and illustrative presentation of physical laws through simultaneous measurement and visualization of motion phenomena
• Calculation of velocity and acceleration via the included free software
• Fast and stable data transmission via BLE Bluetooth
• Minimal influence of environmental factors on measurement results

Technical Specification 

• Electromagnetic Platform:
  • Measurement area: 521 mm × 293 mm
  • Resolution: 0.012 mm
  • Accuracy: 1 mm
  • Communication distance: up to 50 m
  • Power supply: USB charging
  • Charging port: 4-pin magnetic suction interface

• Signal Source:
  • Electromagnetic position measurement within the effective area
  • Optimal measurement distance to the platform: 8 mm to 16 mm
  • Wireless data transmission via BLE Bluetooth
  • Battery: 3.7 V / 65 mAh lithium battery
  • Charging interface: USB Type-C

• Accessories for conducting 9 experiments on the following topics:
  • Measuring gravitational acceleration with a simple pendulum
  • Damped vibrations
  • Horizontal projectile motion
  • Oblique projectile motion
  • Laws of free fall
  • Conservation of mechanical energy
  • Circular motion
  • Centrifugal motion
  • Synthesis and decomposition of motion

• The contents of the set are listed in the user manual.