Supplement to the demonstration wave machine comprising a module with short pendulum bars, a transition module and two module couplers.
If the two models with differing bar lengths and thus differing wave velocities are coupled together, then reflections can be observed at the point where they are joined together. This can be avoided by adding the transition module.
Length of bar module 1: 460 mm
Length of bar module 2: 230 mm
Length of bars for transition module: 230 - 460 mm
Total length: 2440 mm