QNET Physics and Dynamics Board

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Teach Basic Principles of Physics and Engineering Dynamics

The Quanser QNET Physics and Dynamics Board is a versatile system designed to teach and demonstrate the basic prinicples of physics and engineering dynamics. Developed exclusively for NI ELVIS platform and LabVIEW™ software, the system allows students to explore dynamic modeling and analysis hands-on, enhancing typically math-heavy courses and students' understanding the studied topics

Create a Wide Range of Experiments

Various experiment configurations can be created using the modular components of the QNET Physics and Dynamics Board:

QNET Physics and Dynamics Board - Sliding mass experiment Sliding mass on an inclined plane experiment
The core exercise involves a sliding mass sliding along an aluminum plane. The applied force, surface material of the sliding mass, and the angle of the plane can be varied to illustrate a multitude of force, motion, and friction scenarios.
Mass, spring and damper experiment
Attaching a spring to the free mass components of the sliding mass setup, you can perform Hooke's Law, and other vibration- and oscillation-based experiments. With the spring attached to the sliding mass, you can demonstrate the effects of damping on the system, in particular in combination with friction properties of different sliding mass surface materials.
Pendulum experiment
This setup allows you to perform classic pendulum experiments. You can use the pendulum rods of different lengths, combine them with various free masses and introduce different ways of connecting the components to create interesting challenges for your students.
Pulley experiment
The pulley experiment setup illustrates how application of forces and mechanical advantages allow to lift heavy loads, as applied in modern cranes and other systems. The pulley experiment has to main configurations: a simple pulley setup with a fixed pulley and free masses, and a gun tackle pulley setup with fixed and moving pulleys. In both setups, you can use use different combination of free masses and fixed pulley wheel sizes.
Catapult experiment
The core exercise illustrates the fundamentals of projectile motion. The experiment can be configured to release a ball by impacting a mechanical hard-stop at several angles, resulting in a different release angle and speed of the ball.

How It Works

The QNET Physics and Dynamics Board provides an integrated amplifier and a communication interface with the NI ELVIS II(+), interfaced to a PC or laptop via USB link.

The QNET Physics and Dynamics Board consists of a catapult with adjustable release angle, and a sliding mass arm with adjustable incline. The angles of the catapult and the sliding mass arm are measured by a single-ended optical shaft encoders. The behavior of the catapult and sliding mass experiments is controlled by electromagnets, releasing the sliding arm and the catapult arm.

Modular components, such as free masses of different weight, a sliding mass with different surface materials (PETG, styrene, rubber, teflon), spring, pulley wheels of different sizes, and pendulum rods of different length allow you to create various configurations for a wide range of experiments.

  • Compact system with built-in PCI connector for NI ELVIS II(+)
  • Plug-and-play design for quick and easy lab setup
  • Multiple platforms and variable components for creating a wide range of experimental configurations
  • High resolution optical encoder to sense position
  • Electronic release of sliding mass and catapult arm
  • Comprehensive digital resources and courseware included
  • Fully compatible with LabVIEW
  • Fully documented system models and parameters provided for LabVIEW™
Sliding mass weight 130 g
Small free mass weight 50 g
Large free mass weight 100 g
Sliding mass pulley radius 2.54 cm
Spring constant of extension spring 17.34 N/m
Maximum load of extension spring 387 g
Short pendulum rod length 7.62 cm
Long pendulum rod length 15.24 cm
Small fixed pulley radius 0.79 cm
Large fixed pulley radius 1.59 cm
Free pulley radius 1.27 cm
Catapult arm length (pivot to center of projectile holder) 22.94 cm
Encoder line count 512 lines/rev
Encoder line count in quadrature 2048 lines/rev


Topics covered in the Quanser-developed courseware:

  • Force and motion: Newton's Second Law, projectile motion
  • Friction: material coefficient of friction, sliding mass on an inclined plane
  • Energy and momentum: Hooke's Law, equilibrium
  • Oscillations: simple pendulum systems, spring-mass-damper systems
The QNET Physics and Dynamics Board can be also used to teach other topics that are not included in the Quanser-developed courseware.

To set up your QNET Physics and Dynamics Board, you need NI ELVIS II(+) Modular Engineering Education Laboratory Platform.

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