Bohr resonance experiment

Experimental Overview

Bohr resonance experimentIt is an innovative experimental device designed specifically for vibration teaching, focusing on the core principles of damping vibration and forced vibration research. By driving the eccentric wheel with a variable speed motor to drive the spring and swing plate to rotate, combined with high-precision wireless rotation sensors to collect real-time data, this device intuitively displays the dynamic processes of free vibration, damping vibration, forced vibration, and resonance.

The experimental system adopts a modular design, equipped with adjustable magnetic damping devices and dual sensor synchronous monitoring functions, which can accurately measure key parameters such as vibration frequency, amplitude, damping coefficient, etc., and draw real-time "amplitude frequency" curves and phase relationship diagrams. Through the accompanying SmartLAB data acquisition software, students can gain a deeper understanding of the energy conversion, resonance conditions, and damping effects of vibration systems on vibration characteristics, and comprehensively enhance their practical application ability of theoretical knowledge.

Experimental Content

• Measurement of Free Vibration Period and Damping Coefficient
  

• Measurement of phase frequency and amplitude frequency characteristic curves of forced vibration

• Measurement of resonance curve and analysis of the influence of magnetic damping on resonance curve

  
  

  
  

Product Features

• high precisionReal time monitoring by sensors
  

  High precision sensors that record the driving source frequency and disc amplitude separately,Supports Bluetooth/USB dual-mode connection,Realize synchronous data collection and dynamic visualization(such as amplitude frequency characteristic curve, phase frequency characteristic curve).

• Adjustable magnetic damping system

  By changing the current of the electromagnet and flexibly adjusting the electromagnetic damping strength, observe the vibration attenuation characteristics and resonance phenomena under different damping conditions.

  Verify Lenz's law and intuitively understand the impact of electromagnetic damping on energy dissipation.

• SmartLABintelligent software

  Support curve fitting (such as damping vibration envelope fitting), parameter calculation (damping factor β, resonance frequency), and multi chart comparative analysis.

  Provide function editing function, customizable experimental conditions, and simulate forced vibration response under different driving frequencies.

• High precision technical parameters

  The rotation sensor has an angular resolution of 0.18 ° and a line resolution of 0.0157mm (with a 10mm wheel), ensuring accurate data acquisition.

  The drive motor supports wideband adjustment from 0.01Hz to 30Hz, meeting the requirements of fine experiments.

• Innovation and Expansion:

  Support independent design and expansion experiments to explore the dynamic response of complex vibration systems.

  
  

  
  

experimental data

Relationship between amplitude and frequency under different damping conditions

Phase difference diagram

Essential accessories for digital experiments