QNET 2.0 Rotary Pendulum Board

Download product info:

Teach Fundamentals of Rotary Pendulum Balance and Control

The QNET 2.0 Rotary Pendulum Board is a versatile unit ideally suited to teach and demonstrate the fundamentals of inverted pendulum balance and control. Developed exclusively for NI ELVIS platform and LabVIEW™ software, the system can easily be configured to teach hybrid swing-up and LQR control fundamentals. Students learn how to:

  • model a pendulum
  • design and implement a state-feedback controller to balance the pendulum in the upright position
  • design and implement a controller to swing up the pendulum

How It Works

The QNET 2.0 Rotary Pendulum 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 2.0 Rotary Pendulum Board consists of a direct-drive DC motor mounted vertically in a solid aluminum frame and a pendulum suspended on a horizontal axis at the end of a L-shaped arm. The arm is connected to the motor shaft and pivots between ±180 degrees. The control variable is the input voltage to the pulse-width modulated (PWM) amplifier that drives the motor. The output variables are the angle of the pendulum and the angular position of the DC motor, measured by single-ended rotary encoders.

The QNET 2.0 Rotary Pendulum Board is fitted with a variety of safety measures to ensure proper system configuration. Status LEDs provide feedback to users.

Comprehensive Resources and ABET-aligned Courseware Included

The QNET 2.0 Rotary Pendulum Board comes with comprehensive digital resources developed by Quanser to enhance teaching controls, saving professors’ time while helping students quickly grasp the capabilities of the board, relate the studied control concepts to applications in real world and understand the exercises performed in lab. The resources include:

  • ABET-aligned courseware with in-lab exercises
  • detailed ABET assessment guidelines and scoring sheets
  • setup materials, including Quick Start Guides, User Manual and VIs for the trainer ensure faster, easier setup of the experiment
  • pre-designed VIs help students understand how the theoretical block diagrams relates to the actual implementation

  • Compact rotary servo system for NI ELVIS II(+)
  • Plug-and-play design for quick and easy lab setup
  • Durable DC servo motor
  • Built-in PWM amplifier with linear response
  • High resolution optical encoder
  • Protective cover to shield the circuitry
  • Comprehensive digital resources and ABET-aligned courseware included
  • Fully compatible with LabVIEW
  • Fully documented system models and parameters provided for LabVIEW™
Rotary pendulum link mass 24 g
Rotary pendulum link length 12.9 cm
Motor nominal input voltage 18 V
Motor nominal speed 3050 rpm
Motor torque constant 0.042 Nm/A
Motor terminal resistance 8.4 Ω
Rotor inertia of the motor 4.0 x 10-6 kg.m²
Encoder line count 512 lines/rev
Encoder line count in quadrature 2048 lines/rev
Encoder resolution (in quadrature) 0.176 deg/count
Amplifier type PWM
Amplifier peak current 2.5 A
Amplifier continuous current 0.5 A
Amplifier output voltage ± 24 V with 42% duty cycle limit (± 10 V)

Topics covered in the Quanser-developed courseware:

  • System modeling
  • Parameter estimation
  • Balance control
  • Linear-Quadratic Regulator design
  • Non-minimum phase
  • Friction compensation
  • Non-linear swing up control
  • Energy-based control
  • Hybrid control
The QNET 2.0 Rotary Pendulum Board can be also used to teach other topics that are not included in the Quanser-developed courseware.

To set up your QNET 2.0 Rotary Pendulum Board, you need NI ELVIS II(+) Modular Engineering Education Laboratory Platform.

Other products you might be interested in

QNET 2.0 DC Motor Board
QNET 2.0 VTOL Board
QNET 2.0 HVAC Board
QNET Mechatronic Actuators Board
QNET Mechatronic Sensors Trainer
Privacy Policy
©2017 Quanser Inc.