Coupling pendulum experiment

Experimental Overview

Based on rotation sensorsCoupling pendulum experimentThe device is a physical experimental system that integrates high-precision rotational measurement technology, mainly used to study the characteristics of coupled vibration (such as energy transfer, beat phenomenon, resonance, etc.). By quantitatively analyzing parameters such as the angle and angular velocity of the pendulum, it achieves quantitative exploration of the laws of coupled vibration. It can quantitatively measure physical parameters such as in-phase, out of phase vibration, normal vibration, and beat frequency.

This instrument consists of two componentswanquanComposed of the same compound pendulum, the vibration period of the compound pendulum can be adjusted separately, and the two are connected by a spring to achieve mutual coupling, forming a coupled pendulum. By changing the position of the coupling spring on the pendulum, the influence and pattern of the coupling degree on the vibration system can be clearly observed, and the phenomenon of "beating" can be observed from it. It has the characteristics of intuitive experimental measurement and accurate data, which is conducive to broadening students' horizons; The instrument has a scientific structure, is sturdy and lightweight, and is a new instrument for exploring research-based experimental teaching.

Experimental Content

• Measure in-phase vibration, reverse vibration, and normal vibration period

• Measure the Ω ^ 2~l ^ 2 relationship curve and calculate the coupling degree K of the spring at each suspension point

• FFT measurement

  
  

  
  

Product Features

• Support simultaneous acquisition and charting of two rotation sensors, and real-time demonstration of frequency domain changes (FFT)
  

• The angular resolution of the rotation sensor reaches 0.18 °, ensuring accurate data acquisition

• Support self-designed and expanded experiments

  
  

  
  

experimental data

Frequency domain variation diagram of coupled pendulum FFT

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