Apparatus of Franck-Hertz Experiment Mercury for Advanced Physics Lab

The Apparatus of Franck-Hertz Experiment Mercury for Advanced Physics Lab is designed to demonstrate the Bohr atomic energy levels of mercury atoms through practical laboratory experiments. It enables students to measure both the first excitation potential and higher-level excitation potentials of mercury atoms, providing a comprehensive understanding of atomic energy levels and electron transitions.

This apparatus serves as an effective teaching tool for physics laboratories in colleges and universities, allowing students to investigate electron-atom collisions and energy transfer processes.

Experimental data can be recorded manually, viewed directly on the integrated display, or exported to a PC for further analysis, making it suitable for a wide range of teaching and research applications.

Physics Lab Experiments from Atico Exports.

Experiments:

Study of Electron-Atom Collisions and Energy Exchange:

• Observe inelastic collisions between electrons and mercury atoms
• Investigate the transfer of kinetic energy from electrons to atoms
• Understand the excitation process of atomic energy levels

Determination of the First Excitation Potential of Mercury:

• Record the Franck-Hertz characteristic curve
• Measure the voltage interval between adjacent current peaks
• Calculate the first excitation potential of mercury atoms

Verification of Quantized Atomic Energy Levels:

• Demonstrate the existence of discrete atomic energy states
• Verify the experimental basis of Bohr’s atomic theory
• Relate experimental observations to quantum mechanics

Investigation of Temperature Effects:

• Study the influence of mercury vapor temperature on the Franck-Hertz curve
• Analyze changes in collision probability with temperature variation
• Optimize experimental conditions for accurate measurements

Investigation of Voltage Effects:

• Examine the influence of accelerating, retarding, and grid voltages
• Analyze their effect on electron energy and collector current
• Understand the role of electric fields within the Franck-Hertz tube

Measurement of Higher-Level Excitation Potentials:

• Observe additional excitation peaks beyond the first excitation potential
• Investigate higher-energy atomic transitions in mercury atoms
• Gain deeper insight into atomic energy-level structures

Computer-Based Data Acquisition and Analysis:

• Export experimental data to a PC
• Generate and analyze Franck-Hertz curves digitally
• Perform detailed calculations and graphical analysis

• Franck-Hertz Experiment
• Verification of Bohr Atomic Theory
• Quantum Mechanics Demonstrations
• Atomic Excitation Energy Studies
• Electron-Atom Collision Analysis
• Mercury Atomic Spectrum Studies
• Measurement of Excitation Potentials
• Advanced Modern Physics Laboratory Training

Franck-Hertz Curve Peaks (1st Excitation Potential):

• ≥ 10

Franck-Hertz Tube:

• Mercury Filled

Tube Diameter:

• 18 mm

Tube Height:

• 50 mm

Filament Voltage (VF):

• 0 ~ 6.5 V
• Adjustable

First Grid Voltage (VG1K):

• 0 ~ 12 V
• Adjustable

Accelerating Voltage (VG2K):

• 0 ~ 99 V
• Adjustable

Retarding Voltage (VG2P):

• 0 ~ 15 V
• Adjustable

Micro-Current Measurement Range:

• 0.001 nA ~ 1.999 μA

Micro-Current Measurement Accuracy:

• ±1%

Display:

• 7-inch LCD Touch Screen

Display Resolution:

• 1024 × 600

Furnace:

• Integrated with Temperature Controller

Operating Modes:

• Automatic Scan
• Manual Data Recording
• Data Export to PC

Components Included:

Main Electric Unit:

• Including LCD Display, Voltage Sources and Current Amplifier
• Quantity: 1

Temperature Controller:

• Quantity: 1

Furnace:

• Quantity: 1

Complete Set of Cables:

• Quantity: 1 Set

Software CD:

• Including Manual and Data Export Software
• Quantity: 1

Power Cord:

• Quantity: 1

• More Than Ten Observable Peaks for Improved Accuracy
• Capability to Measure Higher-Level Excitation Potentials
• Integrated Touch-Screen Operation
• Real-Time Curve Display Without External Instruments
• High-Precision Current Measurement with ±1% Accuracy
• Automated Data Acquisition and Export Functions
• Temperature-Controlled Mercury Vapor System
• Suitable for Advanced Physics Teaching and Research Laboratories
• Micro-Current Measurement Accuracy of ±1%
• Multiple Operating Modes: Manual Data Recording, Direct On-Screen Observation, and PC Data Export
• More Than 10 Peaks for Accurate First Excitation Potential Measurement
• Capable of Measuring Higher-Level Excitation Potentials of Mercury Atoms
• Touch Screen for Parameter Setting, Adjustment, and Display
• Automatic Scanning and Data Acquisition
• Integrated LCD Display for Real-Time Observation
• Complete Experimental System with Temperature Control