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Products  |  Thermal Engineering and HVAC  |  Fundamentals of Thermodynamics  |  WL 362
WL 362 Thermal Radiation Unit Show data sheet (pdf file) Print page
Technical Description

  The experimental unit contains a blackbody emitter with a thermopile for the investigation of thermal radiation, a light source with luxmeter for illuminance measurements, and absorption plates with thermocouples for the investigation of Kirchhoff's laws. The intensity of thermal and visible radiation can be adjusted. Colour filters and apertures extend the range of experiments.

  The measured values are displayed digitally on the measuring unit. At the same time, the measured values can also be transmitted directly to a PC via USB. The data acquisition software is included.

Learning Objectives / Experiments
- Lambert's cosine law
- inverse-square distance law (Lambert)
- Stefan-Boltzmann constant
- Kirchhoff's laws
  * absorptivity
  * reflectivity
  * emissivity

* Experimental unit for investigating thermal and

  visible radiation1
* Wide range of experiments1
* User-friendly software with options for saving,
  printing and creating diagrams


[1] investigating thermal and visible radiation
[2] blackbody emitter with thermopile to investigate thermal radiation
[3] white light source with luxmeter to investigate visible radiation
[4] absorption plate and reflection plate fitted with thermocouples to investigate Kirchhoff's laws

[5] intensity of thermal radiator and light source adjustable

[6] 3 colour filters with holder (red, green, infrared), aperture
[7] luxmeter to measure the illuminance
[8] thermocouples to measure the temperature

[9] thermopile to measure the radiation capacity

[10] GUNT software for data acquisition via USB under Windows Vista or Windows 7

Technical Data

Thermal radiator

- power output: 400W

- max. temperature that can be reached: 150C

- radiation surface area: 0,032m
Light source

- power output of light bulb: 42W

- angle of rotation, both sides: 0...90

- illuminated area: 0,0289m

Measuring ranges
- illuminance: 0...2.000 Lux
- temperature: 2x 0...1.000C
- radiation capacity: 0...400W/m

Dimensions and Weight
LxWxH: 1.460x310x390mm
Weight: approx. 30kg
Required for Operation
230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
Scope of Delivery

1 frame

1 thermal radiator

1 light source

1 luxmeter

1 thermopile

2x absorption plate

2x reflection plate

3 colour filters with holder

2x aperture

1 GUNT software CD + USB cable
1 set of connecting cables

1 manual

Order Details
060.36200  WL 362  Thermal Radiation Unit
© 2005 G.U.N.T. Gerätebau GmbH