Spectra: measured vs theoretical
(Click figure to enlarge)
Note: computer not included
Features
Record blackbody radiation spectrum under computer control
Deduct transfer function of optical components and photoreceivers
Quantitative analysis of blackbody radiation spectrum
Include Tungsten-Bromine lamp with power supply
Introduction
The LEOI-63 Blackbody Experimental System is a sophisticated setup designed to measure and analyze blackbody radiation and the radiation energy of various emission light sources. This system provides a precise and automated way to explore key concepts in thermodynamics and quantum mechanics related to radiation, specifically enabling the verification and study of fundamental laws such as Planck's Law, Stefan-Boltzmann's Law, and Wien's Displacement Law.
The system is capable of:
1. Automatically recording the radiation spectrum of an emission light source.
2. Analyzing the radiation spectrum to verify theoretical principles like the Planck's law and the Stefan-Boltzmann law.
3. Quantitatively analyzing the color temperature of the light source to observe the phenomenon described by Wien’s Displacement Law.
4. Calculating the theoretical radiation spectrum of an absolute blackbody at any given temperature based on Planck’s formula.
This system is ideal for students studying on physics, material science, and optics, as it allows for practical application of core theories in radiation and thermal 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.
In addition, the infrared spectrometer can be used as a stand-alone instrument for spectroscopy with the software provided.
Using this system, the following experiment examples can be conducted:
1. Verify the Planck’s law of radiation
2. Verify the Stefan-Boltzmann law
3. Verify the Wien’s Displacement law
4. Study the relationship of radiation intensity between a blackbody and a non-blackbody emitter
5. Learn how to measure the radiation energy curve of a non-blackbody emitter
Specifications
| Description | Specifications |
| Wavelength Range | 800 nm ~ 2500 nm |
| Relative Aperture | D/F=1/7 |
| Focal Length of Collimation Lens | 302 mm |
| Grating | 300 L/mm |
| Wavelength Accuracy | ± 4 nm |
| Wavelength Repeatability | ≤ 2 nm |
| Software | Compatible with Windows 10/11 |
Part List
| Description | Qty |
| Spectrometer | 1 |
| Power and Control Unit | 1 |
| Receiver | 1 |
Software CD | 1 |
| Power Cord | 2 |
| Signal Cable | 3 |
| USB Cable | 1 |
| Tungsten-Bromine Lamp (LLC-1) | 1 |
| Color Filter (White and Yellow) | 1 each |
Spectra: measured vs theoretical
(Click figure to enlarge)
