Bifilar/trifilar suspension of pendulums (TM 162)

Bifilar/trifilar suspension of pendulums (TM 162)

ideal mathematical pendulum can be demonstrated

CodeTM162

Description:

  • In a bifilar suspension, the pendulum body is suspended over two threads.
  • The pendulum body oscillates in a plane purely translationally without rotation.
  • This kind of pendulum can be considered as a mathematical pendulum.
  • In a trifilar suspension with three threads, the pendulum body is set in a torsional vibration.
  • The torsional vibration can be used to determine the moment of inertia by experiment.
  • The TM 162unit can be used to study pendulum swings with bifilar or trifilar suspension.
  • A beam, a cylinder or a circular ring are used as pendulum bodies.
  • The length of the threads can be adjusted using clamping devices.
  • The moments of inertia of the pendulum body can be calculated from the measured oscillation period.
  • The oscillation period can be varied by changing the thread length.
  • The experimental unit is designed to be fixed to a wall.

Technical Details:

Specification:

  • investigation of the vibration behaviour of various pendulum bodies in bifilar and trifilar suspension
  • investigation of a mathematical pendulum (bifilar) and a physical pendulum (trifilar)
  • choice of three pendulum bodies: beam, cylinder, circular ring
  • change the thread length with a clamping device
  • stopwatch to measure the oscillation period
  • determine the mass moment of inertia
  • bracket for wall mounting

Technical Data:

  • Pendulum bodies
  • Beam:
    • L x W x H: 40x40x160mm
    • mass: 2kg
  • cylinder:
    • diameter: 160mm
    • height: 19mm
    • mass: 3kg
  • circular ring
    • outer diameter: 160mm
    • inner diameter: 100mm
    • height: 41mm
    • mass: 4kg
  • Thread length: up to 2000mm
  • Stopwatch: 1/100s

Dimensions & Weight:

  • L x W x H: 205x200x2000mm
  • Weight: approx. 12kg

Learning Objections/Experiments:

  • influence of thread length on the oscillation period
  • determine the mass moment of inertia

Scope of Delivery:

  • 1 experimental unit
  • 1 set of instructional material

Features:

  • ideal mathematical pendulum can be demonstrated
  • moment of inertia in an experiment on a rotary pendulum

 

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.