RESONANCE Spring Pendulum 耦合共振擺
掛在彈簧下的柱形擺錘既能作上下振動,同時能圍繞垂直軸線作扭轉擺動.當扭動的頻率被調節成跟振動的頻率相等時, 起動後的擺動將作耦合共振.它將反覆交替地作純振動和純擺動, 其能量將交替地從一種模式轉換成另一種模式. 如右圖, 螺絲"4"可移動, 使鐘擺的torque改變從而改變其擺動頻率. Supplied with one elastic SS spring & Brass screw connector.
參考資料：F.G. Karioris Wilberforce Pendulum, Demonstration Size TPT Vol 31 May 1993 P.314-315
The Dick & Rae Physcis demo Notebook, N964 Dick & Rae , Inc Virginia, 1993
T. Duncan Advance Physics, Material and Mechanics, 2nd edition, p.291 John Murray, London 1981
Item no : JHL 635