Lab Equipment for Teaching Physics

Note: oscilloscope not included

Features

• No preheating for Argon gas tube

• Multiple modes: manual data recording, oscilloscope viewing, or data acquisition with software

• Visible Argon tube with backlight

• Built-in data acquisition card for PC via USB port

  
  

Introduction

The LEAI-32 Franck-Hertz Experiment Apparatus - Advanced Model is an enhanced educational tool designed to help students explore the Bohr atomic energy levels and the fundamental principles of quantum mechanics. This advanced model offers more sophisticated features for deeper exploration of electron-atom collisions, energy exchange, and quantization in atomic physics. 

This apparatus allows for detailed measurement and analysis, with results that can be manually recorded, displayed on an oscilloscope, or acquired using the built-in data acquisition (DAQ) card, which connects to a PC via USB. The DAQ card eliminates the need for an oscilloscope, streamlining the experimental setup and enabling direct data transfer to a computer for further analysis.

This model is ideal for colleges and universities with advanced physics laboratories, offering a hands-on, interactive learning experience for students studying quantum theory and atomic physics.

The instruction manual contains comprehensive materials including experimental configurations, principles and step-by-step instructions. Please click Experiment Theory and Contents to find more information about this apparatus.

The LEAI-32 allows students to perform the following experiments and achieve the following key objectives:

1. Observe the Relationship Between Plate Current and Accelerating Voltage:

   Students will observe and analyze the relationship curve between the plate current and the accelerating voltage. This relationship is crucial in demonstrating the quantization of energy levels and electron interactions in the Franck-Hertz experiment.

2. Understand the Processes of Electron-Atom Collision and Energy Exchange:

   This experiment provides students with a practical understanding of the electron-atom collision process and how energy is exchanged during the collisions. The inelastic collisions lead to the excitation of Argon atoms, and the energy transfer is critical in demonstrating the quantized nature of atomic energy levels.

3. Calculate the 1st Excitation Potential of Argon Atom:

   By analyzing the data from the experiment, students can calculate the 1st excitation potential of the argon atom. This provides a direct application of quantum mechanics in calculating specific atomic properties.

4. Calculate Planck’s Constant Using the Acquired 1st Excitation Potential:

   Using the 1st excitation potential acquired from the experiment, students will be able to calculate Planck's constant (h). This is a fundamental constant in quantum mechanics and will help students better understand the relationship between energy and frequency in atomic transitions.

Specifications

Parts List